Introduction | 129
Single & Multi-Pole | 130
Rocker, Sealed Toggle | 132
Configurations | 136
Operating Characteristics | 140
Delay Curves | 141
Specifications | 145
Decision Tables | 147
IAL/IUL/IEL/LEL Series
Magnetic Circuit Protectors
IAL/IUL/IEL/LEL
IAL/IUL/IEL/LEL Series
Hydraulic Magnetic Circuit Protectors
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - Introduction
129
INTRODUCTION
IAL/IUL/IEL/LEL magnetic circuit protectors provide low-cost
power switching, reliable circuit protection and accurate
circuit control for equipment in the international marketplace.
IAL models are for those applications where the unit’s inherent
attributes are desired, but compliance with the various
standards is not required.
IUL models have been tested and approved in accordance with
UL 1077 requirements for UL recognition.
IEL/LEL models are VDE approved to VDE 0660, part 101. They
meet IEC spacing requirements, mandatory for equipment
which must comply with IEC specifications 601 and 950, and
VDE specifications 0804 and 0805. In addition, the IEL models are
UL recognized to UL 1077 as supplementary protectors and the
LEL models are UL listed under the conditions of UL 489. Both are
CSA certified and CCC Approved. The IEL is CSA certified as a
supplementary protector per CSA C22.2–No. 235.
Airpax™ IAL/IUL/IEL/LEL circuit protectors are available in a
wide variety of configurations, including series, series with
auxiliary switch, shunt and relay with choice of delays and
ratings in DC and/or 50/60Hz or 400Hz versions. Single or multi-
pole versions are available with a variety of pole arrangements
to meet your specifications. Please see the appropriate product
specification table for ratings and limitations.
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - Single Pole 130
IAL/IUL/IEL/LEL Series
IAL/IUL/IEL/LEL
SINGLE POLE, STANDARD STUD TERMINAL
[19.05]
.750
[36.53]
1.438
[63.24]
2.490
[10.21]
.402 [5.59]
.220
[52.32]
2.060
2X 6-32 THREAD
.140 [3.56] DEEP
M3 ISO THD. OPTIONAL
(SEE TABLE)
(SEE TABLE) [3.56]
.140
[3.61]
.142
[47.22]
1.859 [17.53]
.690
ON
OFF
[7.14]
.281
[49.28]
1.940
[7.13]
.281
[49.28]
1.940
[3.61]
.142
Screw Terminal
[7.13]
.281
[49.28]
1.940
[6.35]
ÿ .250 MAX.
[15.04]
.592
[9.96]
.392
[9.53]
.375
Single Pole
Clip Terminal
[24.57]
.967
Bullet Terminal
Notes:
Tolerance ± .015 [.39] unless noted.
Dimensions in brackets [ ] are millimeters.
A Terminal protrusion dimensions are referenced from back of mounting panel.
B Each screw terminal is supplied with a 10-32x.312 [7.92] or M5 x 8mm screw,
flatwasher and external tooth lockwasher.
C Stud terminals are supplied with a flatwasher, external tooth lockwasher
and a 10-32 or M5 hex nut (<=70A) (<=50A for LEL),1/4-20 or M6 hex nut
(>70A)(>50A for LEL).
[19.18]
.755
[52.32]
2.060
[36.78]
1.448
[3.96]
2X ÿ .156
[10.98]
.432
Mounting Detail
Note: Each outer terminal is supplied with a
flatwasher, tooth lockwasher and a hex nut.
Bullet terminal receptacle should be .312 ± .001 diameter hole
not less than .250 depth. Contact Airpax for other bullet sizes.
STUD TERMINAL TYPES
Screw Stud Thread Dimension “A” Dimension “B”
M6 .510 ± .045
[12.95 ± 1.14]
.652 ± .035
[16.56 ± 0.89]
1/4 -20 .545 ± .045
[13.84 ± 1.14]
.687 ± .035
[17.45 ± 0.89]
M5 .510 ± .045
[12.95 ± 1.14]
.652 ± .035
[16.56 ± 0.89]
10-32 .545 ± .045
[13.84 ± 1.14]
.687 ± .035
[17.45 ± 0.89]
Panel Mounting Detail
Tolerance ±.005 [.13] unless noted.
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - Multi-Pole
131
Multi-pole units are combined in an assembly with the trip
mechanisms internally coupled. A fault in any protected circuit
opens all poles simultaneously. Applications include use in
polyphase circuits, single-phase three-wire systems, or in two
or more related but electrically isolated circuits. A mix of
delays, ratings and configurations are offered. The auxiliary
switch is offered with either gold or silver contacts and is
available when a series construction pole is specified.
Two Pole Units
An assembly consisting of two single pole units, having their trip
mechanisms internally coupled, is available with either a single
toggle handle or with a handle per pole. Please see decision
one of the part number decision tables. Individual poles may
vary in ratings, delays and internal configurations. If the poles
are of series construction, an auxiliary switch may be included
in either or both poles, allowing you to mix SELV and hazardous
voltages.
(SEE TABLE)
(SEE TABLE) [3.56]
.140
[3.61]
.142
[47.22]
1.859 [17.53]
.690
ON
OFF
[7.14]
.281
[49.28]
1.940
[19.05]
.750
[52.32]
2.060
[38.86]
1.530
[36.78]
1.448
[10.97]
.432
[3.96]
4X ÿ .156
Two Pole
Two Pole*
[5.59]
.220
MAX.
[36.53]
1.438
[63.24]
2.490
[10.21]
.402
[52.32]
2.060
[38.48]
1.515
4X 6-32 THREAD
.140 [3.56] DEEP
M3 ISO THD. OPTIONAL
MAX.
[38.48]
1.515
[19.05]
.750
Two Pole*
IELH11 IEL11
Note:
A Terminal protrusion dimensions are referenced from back of mounting panel.
B Each screw terminal is supplied with a 10-32x.312 [7.92] or M5 x 8mm screw, flatwasher and external tooth lockwasher.
C Stud terminals are supplied with a flatwasher, external tooth lockwasher and a 10-32 or M5 hex nut (<=70A), 1/4 -20 or M6 hex nut (>70A).
M6
1/4 - 20
M5
10 - 32
Screw stud
thread
.510
.545
.510
.545
Dim. ìAî
(± .045)
.652
.687
.652
.687
Dim. ìBî
(± .035)
Note:
Each outer terminal is supplied with a flatwasher, tooth lockwasher
and a hex nut.
Note:
Tolerance ± .015 [.38] unless noted. Dimensions in
brackets [ ] are millimeters.
Panel Mounting Detail
Tolerance ±.005 [.13] unless noted.
MULTI-POLE CIRCUIT PROTECTORS
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - BX Style 132
IAL/IUL/IEL/LEL
[57.53]
2.265
MAX.
Three Pole and Four Pole Units
The three pole structure consists of three single pole units
assembled with an internal mechanical interlock which
actuates all units simultaneously. The units are available
with either a single toggle handle or with a handle per pole.
Units with four pole construction operate with a minimum
of two center toggle handles or with a handle per pole.
Please see decision one of the part number decision tables.
Mixing of delays, ratings and configurations is available in
each individual pole. The auxiliary switch is offered in any
series trip pole.
Breaker poles are numbered consecutively when viewed
from the terminal side, with the ON position up, starting with
pole #1 on the left side and proceeding to the right.
Three Pole
IEL111
MAX.
[57.53]
2.265
Mounting Detail*
[19.05]
.750
[19.05]
.750
[57.91]
2.280
MAX.
[76.58]
3.015
Four Pole
IEL1111
[19.05]
.750
[19.05]
.750
[19.05]
.750
[38.86]
1.530
Mounting Detail*
[19.05]
.750
[19.05]
.750
Note:
Tolerance ± .015 [.39] unless noted. Dimensions in brackets [ ] are millimeters.
*See Single Pole Mounting Detail for Hole Sizes and Locations.
Three Pole
IELH111
MAX.
[76.58]
3.015
[19.05]
.750
[19.05]
.750
[19.05]
.750
[76.96]
3.030
Mounting Detail*
Four Pole
IELH1111
Mounting Detail*
BX STYLE CIRCUIT PROTECTORS
The innovative new design of our IAL/IUL/IEL/LEL BX Style
circuit protectors features a flat rocker that will satisfy your
aesthetic needs while guarding against accidental
actuation, providing the highest degree of circuit protection
and quality. Only Airpax offers this new standard in user
interface. Available on a variety of versions with a full range
of agency approvals, the IEL BX style circuit protectors meet
or exceed all current performance specifications, including
interrupting capacities up to 50,000 amperes.
1.239
[31.47]
.387 REF.
[9.84]
.768
[19.49]
1.859
[47.22]
2.490 MAX.
[63.25]
2.173 MAX.
[55.19]
.314
[7.98]
1.395
[35.43]
.125
[3.17]
6-32 THD. MOUNTING
M3 ISO THD. OPTIONAL
1.660
[42.16]
.750 MAX.
[19.05]
OPTIONAL
GUARD
(SEE DETAIL ìCî) SINGLE POLE
1.660
[42.16]
.750
[19.05]
1.260
[32.00]
.200
[5.08]
2X ÿ.156
[3.96]
Panel Mounting Detail
Mounting Detail Tolerance:
±.005 [.13] unless noted
ON
I
ON
I
ACTUATION
ACCESS
(SEE NOTE)
DETAIL "A"
ON
I
O
OFF
ON
I
O
OFF
ON
I
O
OFF
ON
I
OFF
O
HANDLE
POSITION "OFF"
GUARD WITH NO ACTUATE
OFF FEATURE
(SIXTH DECISION, X)
HANDLE
POSITION "ON"
GUARD WITH NO ACTUATE
OFF FEATURE
(SIXTH DECISION, X)
PUSH
TO
RESET
NOTE: ACCESS IS LIMITED TO A DEVICE SMALLER THAN THE
UNDERWRITERS LABORATORY "ARTICULATED PROBE"
DEFINED IN UL-489 FIG. 11.1.7.2.1.
HANDLE
POSITION "OFF"
WITH GUARD
(SIXTH DECISION, G)
HANDLE
POSITION "ON"
WITH GUARD
(SIXTH DECISION, G)
HANDLE
POSITION "OFF"
WITHOUT GUARD
HANDLE
POSITION "ON"
WITHOUT GUARD
PUSH
TO
RESET
Panel Mounting Detail
Tolerance ±.005 [.13] unless noted.
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - LELHP/CELHP
133
The Airpax™ LELHP/CELHP high current magnetic circuit protector compliments our entire
series of LEL circuit protectors. Its unique, parallel current sensing design provides precise
current overload protection and reliability in the compact size of a two pole LEL. The unit
is ideal for high power DC applications such as drive motor systems and
telecommunication power systems.
It is available in series and series with auxiliary switch configurations with a choice of delays
for DC ratings of 125, 150, 175 and 200 amperes. The LELHP is UL listed under the conditions of
UL489 and CSA certified. The CELHP is UL listed under the conditions of UL489A. Mid-trip
handle indication, voltage trip and remote operator options complete the LELHP/CELHP circuit
breaker series. Please see the individual product tables for approved ratings.
Contact Sensata for specific part number.
Series Parallel
ON
OFF
[17.53]
.690
[47.22]
1.859
[49.28]
1.940
[7.14]
.281
[3.56]
.140
[13.84]
.545
[16.26]
.640
[26.59]
1.047
[32.56]
1.282
[17.45]
.687
1/4-20 STUD
(M6 x 1.0 STUD
OPTION)
[52.32]
2.060
[5.59]
.220
[36.53]
1.438
[10.21]
.402
[63.25]
2.490
[19.05]
.750
2X 6-32 THREAD
.140 [3.56] DEEP
M3 ISO THD OPTIONAL
C
NO
NC
BREAKER IN
OFF POSITION
Series Parallel with optional
1REC4 Auxiliary switch
Notes:
Tolerance ± .015 [.39] unless noted. Dimensions in brackets [ ] are millimeters.
A Terminal protrusion dimensions are referenced from back of mounting panel.
B Each screw terminal is supplied with a 10-32x.312[7.92] or M5 x 8mm screw, flatwasher and external tooth
lockwasher.
C Stud terminals are supplied with a flatwasher, external tooth lockwasher and a 10-32 or M5 hex nut
(<=70A), 1/4 -20 or M6 hex nut (>70A).
D Units are supplied without bus bars must have a minimum copper strap (1 31/32 x 1/2 x 1/16 ) of appropri-
ate length to accommodate connections tying each set of terminals together.
E Other spacing available upon request. Contact factory for assistance.
[6.60]
.260
[2.79]
.110
2.438 MAX
[61.93]
(SEE NOTE 1)
-REC4
[38.48]
1.515 MAX
[18.80]
.740
(Note E)
32
32
[17.53]
.690
[47.22]
1.859
6X
6X
[49.28]
1.940
[7.14]
.281
[3.56]
.140
[6.40]
.252
[36.53]
1.438
[10.21]
.402
[63.25]
2.490
[57.53]
2.265 MAX.
6X
[14.10]
.555
[7.90]
.311
[10.77]
.424
[7.59]
.299
[18.80]
(Note E)
.740
[50.83]
2.001
OFF
[3.61]
.142
[17.45]
.687
[13.84]
.545
OFF OFF
[32.77]
1.290
[16.46]
.648
ON
OFF
[52.32]
2.060
[5.59]
.220
6X 1/4-20 STUD
6X 6-32 THREAD
.140 [3.56] DEEP
M3 ISO THD OPTIONAL
1.055
[26.79]
[18.80]
(Note E)
.740
Two Pole
Three Pole (Note D)
175/200 Parallel Pole
32
32
[17.53]
.690
[47.22]
1.859
6X
6X
[49.28]
1.940
[7.14]
.281
[3.56]
.140
[6.40]
.252
[36.53]
1.438
[10.21]
.402
[63.25]
2.490
[57.53]
2.265 MAX.
6X
[14.10]
.555
[7.90]
.311
[10.77]
.424
[7.59]
.299
[18.80]
(Note E)
.740
[50.83]
2.001
OFF
[3.61]
.142
[17.45]
.687
[13.84]
.545
OFF OFF
[32.77]
1.290
[16.46]
.648
ON
OFF
[52.32]
2.060
[5.59]
.220
6X 1/4-20 STUD
6X 6-32 THREAD
.140 [3.56] DEEP
M3 ISO THD OPTIONAL
1.055
[26.79]
[18.80]
(Note E)
.740
LELHP/CELHP CIRCUIT PROTECTORS
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - IALN/IULN 134
IAL/IUL/IEL/LEL
The lALN/IULN family is a sealed toggle version of the IAL/IUL
family. The silicone rubber seal around the handle assures
panel seal integrity and makes this style a natural for harsh
environments.
This sealed toggle family is available in one to three pole
models with ratings of .050 to 100 amperes.
[34.92]
1.375
[16.66]
.656
[63.25]
2.490
[19.05]
.750
KEYWAY
.060 [1.52]-.065 [1.65] WIDE
.030 [.76]-.035 [.89] DEEP
[38.48]
1.515
(OPTIONAL, HANDLE
MAY BE IN POLE 2
INSTEAD OF POLE 1)
MAX.
[57.53]
2.265
MAX.
Three Pole
Single Pole Two Pole
(Optional handle may be in
pole 2 instead
of pole 1.)
[13.08]
ÿ.515
[3.96]
ÿ.156
[16.66]
.656
[19.05]
.750
MAX.
[19.05]
.750
[19.05]
.750
MAX. MAX.
[51.82]
2.040
[3.30]
.130
ON
OFF
6-32 MTG. SCREW
1/2-32 HEX NUT
LOCKWASHER
[19.05]
.750
[15.88]
.625
[3.61]
.142
FOR HIGH SHOCK
MTG.
Optional handle
Notes:
A Terminal protrusion dimensions are referenced from back of mounting panel.
B Each screw terminal is supplied with a 10-32x.312[7.92] or M5 x 8mm screw, flatwasher and external tooth lockwasher.
C Stud terminals are supplied with a flatwasher, external tooth lockwasher and a 10-32 or M5 hex nut (<=70A), 1/4 -20 or M6 hex nut (>70A).
Panel Mounting Details: Tolerance ±.005 [.13] Unless noted.
Single Pole Two Pole* Three Pole*
*See Single Pole Mounting Detail for Hole Sizes and Locations.
IALN/IULN PANEL SEAL CIRCUIT PROTECTORS
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - Rocker
135
Two Pole Three Pole Four Pole
The rocker style is available in one to four poles. Choose
either vertical or horizontal mounting with ON-OFF,
international markings or a combination of both.
Five front panel enhancing colors including black, white, red,
grey and orange are available.
[47.22]
1.859
[57.12]
2.249
[10.65]
.419
[34.92]
1.375
[63.25]
2.490
[49.28]
1.940
[3.61]
Note: Tolerance ± .015 [.38] unless noted. Dimensions in brack-
ets [ ] are millimeters.
OFF
ON
[19.05]
.750
[42.16]
1.660
[50.09]
1.972
[18.67]
2.361
2X 6-32 THD. (TYP.)
M3 ISO THD.
OPTIONAL
.735
(HANDLE WIDTH)
OFF
ON
MAX.
[38.07]
1.499
OFF
ON
MAX.
[57.12]
2.249
OFF
ON
OFF
ON
MAX.
[76.58]
3.015
[19.05]
.750
[42.17]
1.660
[3.96]
2X ÿ .156
1.260
[32.00]
[5.08]
.200
[38.35]
1.510
[19.05]
.750
[32.00]
1.260
Note:
A Terminal protrusion dimensions are referenced from back of mounting panel.
B Each screw terminal is supplied with a 10-32x.312[7.92] or M5 x 8mm screw, flatwasher and
external tooth lockwasher.
C Stud terminals are supplied with a flatwasher, external tooth lock washer and a 10-32 or M5
hex nut (<=70A), º -20 or M6 hex nut (>70A).
Single Pole
Panel Mounting Detail*
Single,Two & Three Pole Four Pole**
*Mounting detail tolerance ±.005 [.13] Unless noted.
**See single mounting detail for hole sizes and locations.
(Optional handle may
be in Pole 2 instead of
Pole 1.)
The IALZX/IULZX/IELZX style adds our rocker handle options of
contrasting dual color rocker actuators, affording a clear visual
indication of the handle position and integrated handle guards, to
1.239
[31.47]
.420 REF
[10.67]
.750 MAX.
[19.05]
2X 6-32 THD.
M3 ISO THD.
OPTIONAL
ON
.506
[12.85]
OPTIONAL
HANDLE GUARDS
1.660
[42.16]
OFF
.772
[19.62]
Panel Mounting Details
Mounting Detail Tolerance:
±.005 [.13] Unless Noted.
1.859
[47.22]
2.173 MAX.
[55.19]
.314
[7.98]
.201
[5.11]
1.395
[35.43]
2.490 MAX.
[63.25]
1.660
[42.17]
.750
[19.05]
1.260
[32.00]
2X ÿ .156
[3.96]
.200
[5.08]
1.239
[31.47]
.420 REF
[10.67]
.750 MAX.
[19.05]
2X 6-32 THD.
M3 ISO THD.
OPTIONAL
ON
.506
[12.85]
OPTIONAL
HANDLE GUARDS
1.660
[42.16]
OFF
.772
[19.62]
Panel Mounting Details
Mounting Detail Tolerance:
±.005 [.13] Unless Noted.
1.859
[47.22]
2.173 MAX.
[55.19]
.314
[7.98]
.201
[5.11]
1.395
[35.43]
2.490 MAX.
[63.25]
1.660
[42.17]
.750
[19.05]
1.260
[32.00]
2X ÿ .156
[3.96]
.200
[5.08]
Panel Mounting Detail
help prevent accidental turn-on and turn-off of the unit. Available
with a black rocker and white, red or green indicator color for
either ON or OFF indication.
IALX/IULX/IELX ROCKER HANDLE STYLES
IALZX/IULZX/IELZX ROCKER HANDLE STYLES
Panel Mounting Detail
Tolerance ±.005 [.13] unless noted.
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - Configurations 136
IAL/IUL/IEL/LEL
Series Trip
The most popular configuration for magnetic
protectors is the series trip where the sensing coil
and contacts are in series with the load being
protected. The handle position conveniently
indicates circuit status. In addition to providing
conventional overcurrent protection, it’s
simultaneously used as an on-off switch.
Shunt Trip
The shunt trip is designed for controlling two
separate loads with one assembly. The control is
established by providing overload protection for the
critical load. When the current through this load
becomes excessive and reaches the trip point, the
protector will open and remove power from both
loads simultaneously. The total current rating of both
loads must not exceed the maximum contact rating.
Dual Coil
By combining two electrically independent coils on
a common magnetic circuit, it is possible to provide
contact opening when either an over-current or trip
voltage is applied to the respective coils. One coil
will be a current trip coil with standard
specifications. The second, or dual coil, can be used
to provide a control function permitting contact
opening from a remote interlock or other transducer
functions. Standard coils are 6, 12, 24, 48, 120 and
240 volts. Tripping is instantaneous and must be
removed (usually self-interrupting) after trip.
Auxiliary Switch (Applies to Series Trip Only)
This is furnished as an integral part of a series pole
in single or multi-pole assemblies. Isolated
electrically from the protector’s circuit, the switch
works in unison with the power contacts and
provides indication at a remote location of the
protector’s on-off status.
Auxiliary switch contacts actuate simultaneously
with the main breaker contacts, and will open
regardless of whether the breaker contacts are
opened manually or electrically. For auxiliary switch
ratings below 6Vac or 5Vdc, an auxiliary switch with
gold contacts, designated as REG is available. Gold
contacts are not recommended for load current
above 100 milliamps.
SWITCH ONLYSERIES
1.940
[49.28]
.281
[7.13] Dimension B
(See Table)
Dimension A
(See Table)
1.290
[32.77]
.648
[16.46]
1.055
[26.80]
NC
NO
C
BREAKER IN OFF POSITION
1.26
[32.00]
.278
[7.05]
1.940
[49.28]
2.640 MAX.
[67.06]
(SEE NOTE A)
.795
[20.19]
.660 ±.045
[16.76] ±1.14]
1.266
[32.16]
.971
[24.66]
.676
[17.17]
Dimension B
(See Table)
-IREC5
.250
[6.35]
.187
[4.75]
-IREC4, -IREG4
.260
[6.60]
.110
[2.79]
2.454 MAX.
[64.52]
(SEE NOTE A)
2.438 MAX.
[64.52]
(SEE NOTE A)
-IREC5
.250
[6.35]
.187
[4.75]
-IREC4, -IREG4
.260
[6.60]
.110
[2.79]
2.454 MAX.
[64.52]
(SEE NOTE A)
2.438 MAX.
[64.52]
(SEE NOTE A)
DUAL COILSHUNT
Spacing for VDE Switch
Series with Auxiliary Switch
[17.17]
.676
[24.66]
.971
[32.16]
1.266
Note: Each outer terminal is supplied with a flatwasher,
tooth lockwasher and a hex nut.
Note:
A Terminal protrusion dimensions are referenced from back of mounting
panel.
B Each screw terminal is supplied with a 10-32x.312[7.92] or M5 x 8mm
screw, flatwasher and external tooth lockwasher.
C Stud terminals are supplied with a flatwasher, external tooth lock washer
and a 10-32 or M5 hex nut (<=70A), 1/4-20 or M6 hex nut (>70A).
Series and Switch Only
Shunt and Dual Coil
CONFIGURATIONS
STUD TERMINAL TYPES
Screw Stud Thread Dimension “A” Dimension “B”
M6 .510 ± .045
[12.95 ± 1.14]
.652 ± .035
[16.56 ± 0.89]
1/4 -20 .545 ± .045
[13.84 ± 1.14]
.687 ± .035
[17.45 ± 0.89]
M5 .510 ± .045
[12.95 ± 1.14]
.652 ± .035
[16.56 ± 0.89]
10-32 .545 ± .045
[13.84 ± 1.14]
.687 ± .035
[17.45 ± 0.89]
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - Barrier Options
137
Relay Trip
This permits the overload sensing coil to be placed in a
circuit which is electrically isolated from the trip contacts.
The coil may be actuated by sensors monitoring pressure,
flow, temperature, speed, etc. Other typical applications
include crowbar, interlock and emergency/rapid shutdown
circuitry. Trip may be accomplished by voltage or current,
which must be removed after trip.
Voltage Trip
Sometimes called “dump circuits” or “panic trip circuits,”
these units make it possible to open main power contacts
with lower power inputs from one or more sources. This
configuration is becoming increasingly more important for
sensitive circuitry and denser packaging in automation
systems. Available in series, shunt or relay configurations.
[18.34]
.722
[33.78]
1.330
[7.14]
.281
[16.76
±1.14]
.660±.045
[49.28]
1.940
(SEE NOTE A)
[67.06]
2.640 MAX
[20.19]
.795
RELAY
DUAL COIL
Relay and Dual Coil
Notes:
Tolerance ± .015 [.39] unless noted. Dimensions in brackets [ ] are millimeters.
A Terminal protrusion dimensions are referenced from back of mounting panel.
B Each screw terminal is supplied with a 10-32x.312[7.92] or M5 x 8mm screw, flatwasher and
external tooth lockwasher.
C Stud terminals are supplied with a flatwasher, external tooth lockwasher and a 10-32 or M5 hex
nut (<=70A), 1/4 -20 or M6 hex nut (>70A).
RELAY
DUAL COIL
Barriers
[69.60]
2.740
[17.02]
.670 [27.89]
1.098
[65.02]
2.560
[29.13]
1.147
[18.31]
.721
[65.02]
2.560
[29.13]
1.147
[18.31]
.721 [.84]
.033
[78.74]
3.100
[35.00]
1.378
[24.18]
.952 [7.69]
.303
[3.11]
.122
[.84]
.033
NOTE:
THIS BARRIER CAN BE FLIPPED
TO COVER EITHER POLE.
PLEASE CONTACT FACTORY FOR
SPECIFIC PART NUMBER
FIG.4FIG.3
FIG.2
FIG.1
CONFIGURATIONS (CONT.)
BARRIER OPTIONS
Rating Option Standard
Barrier
Optional
Barrier
IEL
240/415 VAC
Fig. 1 Fig. 2, 3 & 4
415 VAC (VDE)
277/480 VAC
1/4-20, M6 studs for AC
120/240 VAC multi-pole Fig. 2 Fig. 3 & 4
125VDC
LEL
All multi-pole 50/60 Hz Fig. 2 Fig. 3 & 4
All multi-pole 80 VDC, if opposite polarity Fig. 2 Fig. 3 & 4
125VDC Fig. 2 Fig. 3 & 4
Note: Optional barrier available with factory assigned part number. Contact
factory for assistance.
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - Panel Mounting Options 138
IAL/IUL/IEL/LEL
Mid-Trip Indication
Circuit protection, rapid fault location
and alarm capability are blended
together in the Airpax mid-trip
indication option. This option is
designed for automatic handle
movement to a middle position upon
electrical overload, allowing for easier
detection of the fault circuitand
minimizing downtime due to the
overload condition.
In the optional auxiliary switch
configuration, the switch allows an
alarm or signal to be forwarded when
the breaker trips and the handle
moves to the middle position. The
alarm can be disengaged by the
manual actuation of the handle to the
OFF position. Once the fault has been
corrected, the circuit breaker can be
reset to the ON position. The mid-trip
option is available in one, two or three
pole toggle handle packages and in
either standard panel screw or snap-in
mounting. Please see specification
tables of specific product for available
ratings.
Snap-In Mounting
The snap-in mounting adapter allows for
simplified mounting of most IEL/LEL
toggle handle products. Prior to
shipment, the adapter is attached to the
circuit breaker during our final product
assembly, allowing you to securely snap
the unit into a rectangular panel cut-out.
This eliminates the need for panel
mounting hardware and associated
assembly costs.
Available for units up to three poles,
with or without an option handle
guard.
C
NO
NC
C
NO
NC
BREAKER IN ON
OR MANUALLY
TURNED OFF
POSITION
BREAKER IN
MID-TRIP
POSITION
(ELECTRICALLY
TRIPPED)
ON
POSITION
OFF
POSITION
MID-TRIP
POSITION
(SEE TABLE)
[74.63 ±.18]
2.938±.007
DIM.ìAî
[52.35]
2.061
[25.27]
.995
[81.79]
3.220
[44.45]
1.750
[63.37]
2.495
[17.45]
.687
[39.62]
1.560
Mid-Trip Handle
Positions
Panel Mounting
Detail
Note: Tolerance ± .015 [.39] unless noted.
Dimensions in brackets [ ] are millimeters.
PANEL MOUNTING OPTIONS
# of Poles Dimension “A” Panel Thickness
1 pole .760 ± .007
[19.30 ± .18]
.062 ± .005
[1.57 ± .13]
2 pole 1.530 ± .007
[38.86 ± .18]
.062 ± .005
[1.57 ± .13]
3 pole 2.280 ± .007
[57.91 ± .18]
.062 ± .005
[1.57 ± .13]
Panel Mounting Detail
Tolerance ±.005 [.13] unless noted.
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - Operating Characteristics
139
OPERATING CHARACTERISTICS
NOMINAL DCR /IMPEDANCE
Current Ratings
(Amps)
Resistance (ohms) Impedance (ohms) Impedance (ohms)
DC Delays AC, 50/60Hz Delays AC, 400Hz Delays
51, 52, 53, 59 61, 62, 63, 69 41, 42, 43, 49
0.20 45.8 28.5 71.94
1.0 1.38 1.10 2.85
2.0 0.371 0.29 0.76
5.0 0.055 0.51 0.12
10.0 0.017 0.016 0.032
20.0 0.006 0.006 0.010
30.0 0.003 0.004 0.006
50.0 0.0019 0.0018 0.006
60.0 0.00142 0.00121 —
70.0 0.00138 0.00118 —
80.0 0.00133 0.00112 —
90.0 0.00127 0.00107 —
100.0 0.00127 0.00107 —
125.0** 0.0005 — —
150.0** 0.0005 — —
165.0** 0.0004 — —
175.0** 0.0004 — —
200.0** 0.0004 — —
Notes: DCR and impedance based on 100% rated current applied and stablized a minimum of one hour.
Tolerance: .02 amperes to 2.5 amperes, ± 20%; 2.6 amperes to 20 amperes, ± 25%; 21 amperes to 50 amperes, ± 50%. Consult factory for special values and for coil
impedance of delays not shown
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - Operating Characteristics 140
IAL/IUL/IEL/LEL
PERCENTAGE OF RATED CURRENT VS TRIP TIME IN SECONDS AT +25°C
Delay 100% 125% (Note A) 150% 200% 400% 600% 800% 1000%
41* No Trip May trip .5 to 8 .15 to 1.9 .02 to .4 .006 to .25 .004 to .1 .004 to .05
42* No Trip May trip 5 to 70 2.2 to 25 .40 to 5 .012 to 2 .006 to .2 .006 to .15
43* No Trip May trip 35 to 350 12 to 120 1.5 to 20 .012 to 2.2 .01 to .22 .01 to .1
49* No Trip May trip .100 max. .050 max. .020 max. .020 max. .020 max. .020 max.
51 No Trip .5 to 6.5 .3 to 3 .1 to 1.2 .031 to .5 .011 to .25 .004 to .1 .004 to .08
52 No Trip 2 to 60 1.8 to 30 1 to 10 .15 to 2 .04 to 1 .008 to .5 .006 to .1
53** No Trip 80 to 700 40 to 400 15 to 150 2 to 20 .23 to 9 .015 to .55 .012 to .2
59 No Trip .120 max. .100 max. .050 max. .022 max. .017 max. .017 max. .017 max.
61 No Trip .7 to 12 .35 to 7 .130 to 3 .030 to 1 .015 to .3 .01 to .15 .008 to .1
62 No Trip 10 to 120 6 to 60 2 to 20 .2 to 3 .02 to 2 .015 to .8 .01 to .25
63 No Trip 50 to 700 30 to 400 10 to 150 1.5 to 20 .4 to 10 .013 to .85 .013 to .5
69 No Trip .120 max .100 max. .050 max. .022 max. .017 max. .017 max. .017 max
Notes: All trip curves and trip currents are specified with the protector mounted in the normal vertical position at ambient temperature of +25° C. Protectors do not
carry current prior to application of overload. A: Ratings above 30 amps may deviate from the above limits by approximately 10% (130% for delay 49).
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - Delay Curves
141
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 61
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 62DELAY 62DELAY 62
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 63
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 69
MAY TRIP
400Hz, DC, 50/60Hz Delay Curves (typ)
A choice of delays is offered for DC, 50/60Hz, 400Hz, or
combined DC/50/60Hz applications. Delays 49, 59, 69
and 79 provide fast-acting, instantaneous tripping and
are often used to protect sensitive electronic
equipment (not recommended where a known inrush
exists). Delays 41, 51, 61 and 71 have a short delay for
general purpose applications. Delays 42, 52, 62 and 72
are long enough for most transformers and capacitor
loads. Delays 43, 53, 63 and 73 are extra long for
special motor applications.
Inrush Pulse Tolerance
Pulse tolerance is defined as a single pulse of half sine wave
peak current amplitude of 8 milliseconds duration that will
not trip the circuit breaker.
The table on page 171 provides a guide to determine if the
inertia delay feature is required. Consult factory for further
assistance.
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 61
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 62DELAY 62DELAY 62
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 63
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 69
MAY TRIP
DELAY CURVES
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - Delay Curves 142
IAL/IUL/IEL/LEL
DC Delay Curves (typ)
800
700
600
500
400
300
200
150
125
100
0
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 51
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 52
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 53
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 59
MAY TRIP
TIME IN SECONDS
PULSE TOLERANCES
Delay Pulse Tolerance
61, 62, 63, 71, 72, 73 10 times (approx.) rated current
61F, 62F, 63F, 71F, 72F, 73F 12 times (approx.) rated current
64, 65, 66 (0 - 50A) 25 times (approx.) rated current
64, 65, 66 (>50 - 80A) 20 times (approx.) rated current
64, 65, 66 (>80 - 100A) 18 times (approx.) rated current
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - Delay Curves
143
400Hz Delay Curves (typ)
*Available only in IAL/IUL/IEL; not available in LEL.
800
700
600
500
400
300
200
150
125
100
0
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 41
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 42
MAY TRIP
800
700
600
500
400
300
200
150
125
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 43
MAY TRIP
800
700
600
500
400
300
200
150
130
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 49
MAY TRIP
TIME IN SECONDS
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - Delay Curves 144
IAL/IUL/IEL/LEL
DELAY 79
800
700
600
500
400
300
200
150
135
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
MAY TRIP
800
700
600
500
400
300
200
150
135
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 71
800
700
600
500
400
300
200
150
135
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
DELAY 73
800
700
600
500
400
300
200
150
135
100
0
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000
900
MAY TRIP
DELAY 72
MAY TRIP MAY TRIP
DC/50/60Hz Dual-frequency Delay Curves (typ)
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - Specifications
145
IAL/IUL/IEL/IDL/LEL SPECIFICATIONS
Trip Free
Will trip open on overload even when forcibly held in the ON
position. This prevents the operator from damaging the circuit
by holding the breaker on.
Trip Indication
The operating handle moves positively to the OFF or mid-trip
position on electrical overload.
Ambient Operation
IAL/IUL/IEL protectors operate in temperatures between –40°C
to +85°C.
Insulation Resistance
Not less than 100 megohms at 500 volts DC.
Dielectric Strength
IAL/IUL/IEL protectors withstand 3750Vac (1250Vac for LEL),
60Hz for 60 seconds between all electrically isolated terminals
except auxiliary switch terminals shall withstand 600Vac, 60Hz
for REG and REC types. Four terminal dual coil and relay con-
struction (not offered in the LEL) will withstand 1500Vac.
Endurance
Operating as a switch, the operating life exceeds 10,000 oper-
ations, 6000 at rated load, 4000 without load, at a rate of 6 per
minute.
Electrical Characteristics
.050-100 amperes 80Vdc, 240Vac Max., 240/415Vac at 50
amperes Max., 50/60Hz and 400Hz. Consult factory for specific
product ratings. Units rated for 240/415Vac and above 50
amperes are not suitable for across-the-line motor starting.
Poles
One through six poles available.
Construction
Series, shunt, relay dual coil and series with auxiliary switch
available in various delays and combinations.
Auxiliary Switch
When supplied shall be S.P.D.T. configuration. Non VDE
approved switches have a maximum UL rating of 10.0
amperes, 250 volts, 60Hz; 3.0 amperes, 50 volts DC (REC
type) or 0.1 amperes, 125 volts, 60Hz (REG type).
VDE approved switches have a maximum UL rating of 10.0
amperes, 250 volts, 60Hz (REC type); or 0.1 amperes, 125 volts,
60Hz (REG; type). The maximum VDE ratings are 1.0 amperes, 125
volts, 60Hz (REC type); 0.1 amperes, 125 volts, 60Hz (REG type).
Salt Spray (Corrosion)
Meet the requirements of MIL-PRF-55629 when tested in
accordance with Method 101 of MIL-STD-202.
Moisture Resistance
Meet all the requirements of MIL-PRF-55629 when tested in
accordance with Method 106 of MIL-STD-202.
Shock
Circuit protectors shall not trip when tested per MIL-STD-202,
Method 213, Test Condition I with 100% rated current applied
to delayed units and 80% rated current to instantaneous units.
Vibration
Circuit protectors shall not trip when vibrated per MIL-
STD-202, Method 204, Test Condition A with 100% rated
current applied to delayed units and 80% rated current to
instantaneous units.
UL-1500 (Marine Ignition Protected)
The IDL/IDLH is approved for Marine Ignition Protection (series
configuration only), covering ignition protected circuit break-
ers. This specification requires devices to be used in
accordance with the requirementsof U.S. Coast Guard and Fire
Protection Standard for Pleasure and Commercial Motor Craft,
ANSI/MFPA #302.
APPROXIMATE WEIGHT PER POLE
Ounces Grams
3.1 90
RECOMMENDED TORQUE SPECIFICATIONS
Component Torque (in-lbs)
6-32 Mounting Inserts 6 to 8
M3 Mounting Screws 4 to 5
10-32 Screw Terminals 14 to 15
M5 Terminal Screws 14 to 15
10-32 Stud Terminals 13 to 14
M5 Stud Terminals 13 to 14
1/4 - 20 Stud Terminals 40 to 45
M6 Stud Terminals 40 to 45
1/2 - 32 Mounting Bushing 30 to 35
Where applicable, mechanical support must be provide to the terminals when
applying torque
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - Specifications 146
IAL/IUL/IEL/LEL
AGENCY APPROVALS - IAL/IUL/IEL
Voltage
Frequency
(Hz) Phase
Min.
Poles TC OL UL/CSA
VDE
(amps)
UL 1077 & CSA
(AIC)
VDE
(AIC)
65 DC - 1 1 1 .02-100 .10-70 U2, 7500 4000
65(4) DC - 1 1 1 .02-100 - U2, 3000 -
65(4) DC - 1 1 1 .02-50 - U2, 5000 -
65 DC - 2** 2 1 101-150 - U2, 7500 -
80 DC - 1 1 1 .02-70 .10-50 U2, 7500 4000
80 DC - 1 1 1 70.1-100 - U2, 5000 -
80 DC - 2 1 1 101-150 - U1, 10000 -
80 DC - 3 1 0 251-300 - U2, 7500 -
125 DC - 2 1 0 .02-100 - U2, 5000 -
250 DC - 2+ 1 0 .02-50 - U1, 5000 -
300 DC - 3++ 1 0 .02-50 .10-50 U2, 1000 5000
125 50/60 1 1 1 0 .02-70 - U2, 5000 -
125 50/60 1 1 1 1 .02-100 - U1, 3000 -
125(5) 50/60 1 1 1 1 .02-100 - U3, 1500 -
120/240 50/60 1 2 2 1 .02-100 - U1, 2000 -
125/250(5) 50/60 1 2 only 1 1 .02-100 - U3, 1500 -
240 50/60 1&3 1 1 0 .02-70 - U1, 2000 -
240 50/60 3 2 1 1 .02-100 - U2, 2000 -
250 50/60 3 1 1 1 .02-50 .10-100 U2, 3000 2000
250 50/60 3 1 1 1 .02-50 .10-100 C2, 5000(1) 2000
250 50/60 1 1 1 1 .02-50 .10-100 C2, 5000(2) 2000
250 50/60 3 2 1 0 .02-80 .10-100 U1, 1000 2000
250 50/60 3 1 1 0 .02-60 .10-100 U1, 5000 2000
250(5) 50/60 3 3 only 1 1 .02-100 - U3, 2000 -
277 50/60 1 1 1 1 .02-50 - U2, 2000 -
277 50/60 1&3 1 2 1 .02-50 - C2, 5000(1) -
240/415 50/60 3 2 2 0 .02-50 .10-50 U2, 2000 2000
240/415 50/60 1 2 2 0 .02-50 .10-50 C2, 5000(1) 2000
277/480 50/60 3 2 2 1 .02-30 - U2, 2000 -
277/480 50/60 3 2 2 1 .02-50 - U2, 1200 -
277/480 50/60 3 2 1 1 .02-30 - C2, 5000(3) -
277480 50/60 1&3 2 1 0 .02-50 - C2, 5000(3) -
480 50/60 1&3 2 1 1 .02-30 - C2, 5000(3) -
480 50/60 3 2 1 0 .02-50 - C2, 5000(3) -
250 400 1&3 1 2 1 .02-50 - U2, 1500 -
AGENCY APPROVALS - CEL/CELP (COMMUNICATIONS)
Voltage
Frequency
(Hz) Phase
Min.
Poles UL/CSA
VDE
(amps)
UL 489A
(AIC)
VDE
(AIC)
65 DC - 1 .05-50 - 7500 -
65 DC - 2** 101-150 - 50000 -
80 DC - 1 .05-100 - 50000 -
80 DC - 2** 101-200 - 10000 -
80 DC - 3** 201-250 - 10000 -
125 DC - 1 .05-70 - 5000 -
General notes:
• All supplementary protectors are of the overcurrent (OC) type
• The family of protectors has been evaluated for end use application for use groups
(UG) A, B, C and D
• The terminals (FW) are suitable for factory wiring only (0)
• The maximum voltage ratings for which the protectors have been tested are shown in
the chart
• The current is the amperage range that the protectors have been tested
• The tripping current (TC) for all of the protectors is either either “1” (in the range of
125% to 135% of ampere rating) or “2” (more than 135% of ampere rating)
• The overload rating (OL) – designates whether the protector has been tested for
general use or motor starting applications.
0 – tested at 1.5 times amp rating for general use
1 – tested at 6 times AC rating or 10 times DC rating for motor starting
• The short circuit current rating (SC) – The short circuit rating in amperes following a
letter and number designating the test conditions and any calibration following the
short circuit test is defined below:
C – Indicates short circuit test was conducted with series overcurrent protection
U – Indicates short circuit test was conducted without series overcurrent protection
1 – Indicates a recalibration was not conducted as part of the short circuit testing
2 – Indicates a recalibration was performed as part of the short circuit testing
3 – Indicates recalibration was performed along with the dielectric and voltage
withstand for “Suitable for Further Use” rating
AGENCY APPROVALS - IULD (DUST SEALED)
Voltage
Frequency
(Hz) Phase
Min.
Poles TC OL UL/CSA
VDE
(amps)
UL 1077 & CSA
(AIC)
VDE
(AIC)
250 50/60 1&3 1 1 1 .02-100 - C2, 5000(3) -
277 50/60 1 1 1 1 .02-30 - C2, 5000(3) -
Notes:
** Paralleled poles; + 2 poles in series; ++ 3 poles in series; (1) With 125 A max. series fuse; (2) Series
combination with 209 or 229 series (100 A max.); (3) With 100 A max. series fuse; (4) With blocked vent
construction (5) Non-standard construction. “Fit for further use” approval
IAL/IUL/IEL/IDL/LEL/LELHP SPECIFICATIONS
AGENCY APPROVALS - LEL/LELHP
Voltage
Frequency
(Hz) Phase
Min.
Poles UL/CSA
VDE
(amps)
UL489
(AIC)
VDE
(AIC)
65 DC - 1 .05-50 - 7500 -
65 DC - 2** 101-150 - 50 000 -
65 DC - 3** 175-200 - 50000 -
80 DC - 1 .05-100 .10-100 10000 2000
80 DC - 1 .05-100 - 50000 -
80 DC - 2** 125-150 125-150 10000 2000
80 DC - 3** 175-200 151-200 10000 2000
125 DC - 1 .05-70 .05-70 5000 3000
125/250 DC - 2 .05-50 - 5000 -
125 50/60 1&3 1 .05-40 - 10000 -
125 50/60 1&3 1 .05-50 .10-50 5000 2000
120/240 50/60 1 2 .05-70 .10-50 5000 2000
240 50/60 1&3 1 .05-20 - 5000 -
AGENCY APPROVALS - IDL/IDLP (MARINE)
Voltage
Frequency
(Hz) Phase
Min.
Poles TC OL UL/CSA
VDE
(amps)
UL 1077 & CSA
(AIC)
VDE
(AIC)
48 DC - 1 1 1 .02-100 - U1, 5000 -
48 DC - 2** 1 1 101-150 - U1, 5000 -
65 DC - 1 1 1 .02-60 - U1, 1000 -
80 DC - 1 1 1 .02-100 - U2, 1500 -
125 50/60 1 1 1 1 .02-100 - U 1, 1500 -
250 50/60 1 2 1 1 .02-100 - U2, 1500 -
250 50/60 1&3 1 1 1 .02-60 - U1, 1000 -
AGENCY APPROVALS - IULQ (TAPPED COIL)
Voltage
Frequency
(Hz) Phase
Min.
Poles TC OL UL/CSA
VDE
(amps)
UL 1077 & CSA
(AIC)
VDE
(AIC)
125/250 50/60 1 1 1 1 2/1-30/15 - C2, 5000(1) -
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - IAL/IUL/IEL Decision Tables
147
IAL/IUL/IEL DECISION TABLES
The ordering code for IAL/IUL/IEL/LEL
circuit protectors may be determined by
following the decision steps in the
appropriate part number decision table
subsequent to this page.
The coding given permits a self-assigning
part number but with certain limitations.
Special applications may require a factory
assigned part number. Typical examples
are units with mixed ratings, combinations
of styles, or constructions not listed in the
third decision table, etc. With these, it is
suggested that order entry be by
description and/or drawings, and a part
number will be established. Additionally, it
is standard policy to establish a factory-
assigned part number whenever a
descriptive drawing exists to provide cross
reference, traceability and manufacturing
control.
When specifying a circuit breaker for AC
motor start or high inrush applications, the
peak amplitude and surge duration should
be specified for factory assistance in rating
selection.
For example the code shown is the code
for a single pole breaker with a series
construction and auxiliary switch,
designed for operation in a 50/60Hz
circuit. It has a short time delay, rating of
20 amperes and a marked black handle,
and is VDE approved.
To determine the ordering number for your
particular IAL/IUL/IEL unit, simply follow
the steps shown. You may use this number
to place an order or as a reference for
further questions you may have.
Notes:
IEL, IELH and IELX circuit protectors are designed
to meet 8mm creepage clearance requirements for
installation Category 111, Pollution Degree 3, Case A as
measured in IEC 664. Intended for use in equipment to
comply with IEC 950, 601 and VDE 0804 & 0805.
Second Decision
Single pole
Two pole
Three pole
Four pole*
1
11
111
1111
2
Poles
*Not available in toggle seal handle type. Consult factory
for 5 and 6 pole IEL part number.
Internal Configuration
Third Decision
3
* Only one auxiliary switch is normally supplied on two or three
pole units. Switch is located in the right-hand pole (viewed from
terminal end) unless otherwise specified.
1234
IEL 1 - 1REC4- 61- 20.0 - 01 - V
57
Example:
Black
Yellow
Red
Blue
Green
Orange
White
-00
-10
-20
-30
-40
-60
-90
-01 (STD)
-11
-21
-31
-41
-61
-91
Seventh Decision
7
Handle Color and Marking Selection
IAL, IUL, IEL, IALH,
IULH, IELH - Toggle Handle
Marked*
ON-OFF
Color Unmarked I-O
Fifth Decision
5
Rated Current
Use three numbers to print required current
value between .100 amps minimum and
100.0 amps maximum.
For example, use:
.100 or 2.00 or 10.0
The VDE (lth) will be 95% of the UL/CSA
rated current.
Fourth Decision
4
Frequency & Delay
Switch only
400Hz short delay
400Hz long delay
400Hz motor start
400Hz 150% instant trip
DC short delay
DC long delay
DC motor start
DC 125% instant trip
50/60Hz short delay
50/60Hz long delay
50/60Hz motor start
50/60Hz 125% instant trip
DC/60Hz short delay
DC/60Hz long delay
DC/60Hz motor start
DC/60 Hz 135% instant trip
For addition of inertial delay, add an ìFî to any
delay numeral.
SW
-41
-42
-43
-49
-51
-52
-53
-59
-61
-62
-63
-69
-71
-72
-73
-79
Notes: A. Bezels of IALBX, IULBX, IELB, IELBX are black.
B. Consult factory for other marking options.
Note: CCC Approval is pending.
Black
Red
Grey
Orange
White
-00
-20
-40
-50
-90
-01
-21
-41
-51
-91
-02
-22
-42
-52
-92
-03
-23
-43
-53
-93
-04
-24
-44
-54
-94
-05
-25
-45
-55
-95
-06
-26
-46
-56
-96
I-O
Fig.2
Unmarked
Marking
Detail
Seventh Decision
7
Rocker Handle Color, Indicator Color and Marking Selection (See Notes)
IALX, IULX, IELX, IALZX, IULZX, IELZX Rocker Handle (Single Rocker Color)
Rocker
Handle
Color
Indicating
Color
Marking
Color Indicates:
On-Off
Fig.1
On-Off
I-O
Fig.3
On-Off
I-O
Fig.6
I-O
Fig.5
On-Off
Fig.4
A
Vertical Mounting Horizontal Mounting
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Black
Black
Black
White
Red
Green
White
White
White
On
On
On
-J0
-K0
-L0
-J1
-K1
-L1
-J2
-K2
-L2
-J3
-K3
-L3
-J4
-K4
-L4
-J5
-K5
-L5
-J6
-K6
-L6
B
C
White
White
Black
Black
Black
IALZX, IULZX, IELZX Rocker Handle (Dual Rocker Color)
Black
Black
Black
Black
Black
Black
White
Red
Green
White
Red
Green
White
White
White
White
White
White
On
On
On
Off
Off
Off
-A0
-B0
-C0
-F0
-G0
-H0
-A1
-B1
-C1
-F1
-G1
-H1
-A2
-B2
-C2
-F2
-G2
-H2
-A3
-B3
-C3
-F3
-G3
-H3
-A4
-B4
-C4
-F4
-G4
-H4
-A5
-B5
-C5
-F5
-G5
-H5
-A6
-B6
-C6
-F6
-G6
-H6
Black
Black
Black
Black
White
Red
Green
Yellow
White
Red
Green
Yellow
Off
Off
Off
Off
-M0
-N0
-P0
-R0
N/A
N/A
N/A
N/A
-M2
-N2
-P2
-R2
-M3
-N3
-P3
-R3
N/A
N/A
N/A
N/A
-M6
-N6
-P6
-R6
N/A
N/A
N/A
N/A
A
IALBX, IULBX, IELBX, LELBX Rocker Handle (Dual Rocker Color)
IALBX
**IULBX
***IELBX
**IMLBX
One handle per unit
One handle per pole
One handle per unit
panel seal
One handle per unit,
rocker, bracket mounting
One handle per unit,
rocker, integral mounting
One handle per unit
UL 1500
One handle per pole
UL 1500
One handle per unit
mid trip indication
One handle per pole
mid trip indication
One handle per unit,
rocker, accidental-off
protection
One handle per unit,
mid trip indication, rocker,
accidental-off protection
*UL Recognized
**UL Recognized, CSA Certified
***UL Recognized, CSA Certified, VDE Approved
*** IML
*** IMLH
Select Type and Terminal
First Decision
1
IAL
**IUL
***IEL
IALH
**IULH
***IELH
IALN
***IULN
IALX
**IULX
***IELX
IALZX
**IULZX
***IELZX
* IDL
* IDLH
Type Terminal
Standard screw terminal,
no designation required
Stud terminals
Clip terminals
Bullet terminals
K
C
B
Sixth Decision
6
Notes:
1. One or more descriptions may be used as required.
2. When this is not used, table one may be substituted and U.S. thread and
two lockwashers will be supplied. Unit will be rated at 250V (50/60Hz only.)
3. VDE approved at 250Vac
4. VDE approved at 415Vac
-A
-B
-C
-D
-E
-G
-K
-L
-M
-P
-U
-W
-X
-1
-2
Standard hardware. No designation required.
Metric thread mounting inserts and terminals
Barrier
277V (50/60Hz only) (See note 3)
240/415V (50/60Hz only)
277V/480V (50/60Hz only) (See note 4)
Handle guard, (available in ZX, BX and snap-in
versions only)
1/4 - 20 stud (M6 stud when -A option is selected)
(<=70A requires -K, if >70A do not use -K)
Handle lock
Handle in opposite pole
Snap-in face plate adapter
120/240V 50/60Hz
Wire clamp supplied (VDE approved up to
and including 16.0 amps)
Handle guard with no actuation feature
(BX rocker only)
Silver 5/16" (.312") bullet
Gold 5/16" (.312") bullet
Optional
The shaded areas denote VDE and CCC
(if applicable) Approval options. This approval
requires the addition of a V at the end of the
part number. The V will be added to any part
number formed entirely from shaded decisions.
If non-shaded areas are selected, the unit will not
be VDE or CCC Approved, but other approvals
still apply.
V = VDE and CCC Approved
Description
Note: CCC Approval is pending.
-0
-1
-1REC4
-1REC5
-1REG4
-1RS4
-1RLS4
-1RS5
-3
-4
Switch only (50, 70 or 100 amp switch)
Series
Series with auxiliary switch*
.110 quick connect
Series with auxiliary switch*
.187 quick connect
Series with auxiliary switch
.110 quick connect
Series with alarm switch,
electrical trip, .110 quick connect
terminals
Series with alarm switch,
electrical trip, .110 quick connect
terminals (mid-trip only)
Series with alarm switch,
electrical trip, .187 quick connect
terminals
Shunt
Relay (not available in IEL/IELX)
This approval requires the addition of a C at the end
of the part number. The unit will not be VDE Approved.
C = CCC Approved
IAL/IUL/IEL/LEL
Second Decision
Single pole
Two pole
Three pole
Four pole*
1
11
111
1111
2
Poles
*Not available in toggle seal handle type. Consult factory
for 5 and 6 pole IEL part number.
Internal Configuration
Third Decision
3
* Only one auxiliary switch is normally supplied on two or three
pole units. Switch is located in the right-hand pole (viewed from
terminal end) unless otherwise specified.
1234
IEL 1 - 1REC4- 61- 20.0 - 01 - V
57
Example:
Black
Yellow
Red
Blue
Green
Orange
White
-00
-10
-20
-30
-40
-60
-90
-01 (STD)
-11
-21
-31
-41
-61
-91
Seventh Decision
7
Handle Color and Marking Selection
IAL, IUL, IEL, IALH,
IULH, IELH - Toggle Handle
Marked*
ON-OFF
Color Unmarked I-O
Fifth Decision
5
Rated Current
Use three numbers to print required current
value between .100 amps minimum and
100.0 amps maximum.
For example, use:
.100 or 2.00 or 10.0
The VDE (lth) will be 95% of the UL/CSA
rated current.
Fourth Decision
4
Frequency & Delay
Switch only
400Hz short delay
400Hz long delay
400Hz motor start
400Hz 150% instant trip
DC short delay
DC long delay
DC motor start
DC 125% instant trip
50/60Hz short delay
50/60Hz long delay
50/60Hz motor start
50/60Hz 125% instant trip
DC/60Hz short delay
DC/60Hz long delay
DC/60Hz motor start
DC/60 Hz 135% instant trip
For addition of inertial delay, add an ìFî to any
delay numeral.
SW
-41
-42
-43
-49
-51
-52
-53
-59
-61
-62
-63
-69
-71
-72
-73
-79
Notes: A. Bezels of IALBX, IULBX, IELB, IELBX are black.
B. Consult factory for other marking options.
Note: CCC Approval is pending.
Black
Red
Grey
Orange
White
-00
-20
-40
-50
-90
-01
-21
-41
-51
-91
-02
-22
-42
-52
-92
-03
-23
-43
-53
-93
-04
-24
-44
-54
-94
-05
-25
-45
-55
-95
-06
-26
-46
-56
-96
I-O
Fig.2
Unmarked
Marking
Detail
Seventh Decision
7
Rocker Handle Color, Indicator Color and Marking Selection (See Notes)
IALX, IULX, IELX, IALZX, IULZX, IELZX Rocker Handle (Single Rocker Color)
Rocker
Handle
Color
Indicating
Color
Marking
Color Indicates:
On-Off
Fig.1
On-Off
I-O
Fig.3
On-Off
I-O
Fig.6
I-O
Fig.5
On-Off
Fig.4
A
Vertical Mounting Horizontal Mounting
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Black
Black
Black
White
Red
Green
White
White
White
On
On
On
-J0
-K0
-L0
-J1
-K1
-L1
-J2
-K2
-L2
-J3
-K3
-L3
-J4
-K4
-L4
-J5
-K5
-L5
-J6
-K6
-L6
B
C
White
White
Black
Black
Black
IALZX, IULZX, IELZX Rocker Handle (Dual Rocker Color)
Black
Black
Black
Black
Black
Black
White
Red
Green
White
Red
Green
White
White
White
White
White
White
On
On
On
Off
Off
Off
-A0
-B0
-C0
-F0
-G0
-H0
-A1
-B1
-C1
-F1
-G1
-H1
-A2
-B2
-C2
-F2
-G2
-H2
-A3
-B3
-C3
-F3
-G3
-H3
-A4
-B4
-C4
-F4
-G4
-H4
-A5
-B5
-C5
-F5
-G5
-H5
-A6
-B6
-C6
-F6
-G6
-H6
Black
Black
Black
Black
White
Red
Green
Yellow
White
Red
Green
Yellow
Off
Off
Off
Off
-M0
-N0
-P0
-R0
N/A
N/A
N/A
N/A
-M2
-N2
-P2
-R2
-M3
-N3
-P3
-R3
N/A
N/A
N/A
N/A
-M6
-N6
-P6
-R6
N/A
N/A
N/A
N/A
A
IALBX, IULBX, IELBX, LELBX Rocker Handle (Dual Rocker Color)
IALBX
**IULBX
***IELBX
**IMLBX
One handle per unit
One handle per pole
One handle per unit
panel seal
One handle per unit,
rocker, bracket mounting
One handle per unit,
rocker, integral mounting
One handle per unit
UL 1500
One handle per pole
UL 1500
One handle per unit
mid trip indication
One handle per pole
mid trip indication
One handle per unit,
rocker, accidental-off
protection
One handle per unit,
mid trip indication, rocker,
accidental-off protection
*UL Recognized
**UL Recognized, CSA Certified
***UL Recognized, CSA Certified, VDE Approved
*** IML
*** IMLH
Select Type and Terminal
First Decision
1
IAL
**IUL
***IEL
IALH
**IULH
***IELH
IALN
***IULN
IALX
**IULX
***IELX
IALZX
**IULZX
***IELZX
* IDL
* IDLH
Type Terminal
Standard screw terminal,
no designation required
Stud terminals
Clip terminals
Bullet terminals
K
C
B
Sixth Decision
6
Notes:
1. One or more descriptions may be used as required.
2. When this is not used, table one may be substituted and U.S. thread and
two lockwashers will be supplied. Unit will be rated at 250V (50/60Hz only.)
3. VDE approved at 250Vac
4. VDE approved at 415Vac
-A
-B
-C
-D
-E
-G
-K
-L
-M
-P
-U
-W
-X
-1
-2
Standard hardware. No designation required.
Metric thread mounting inserts and terminals
Barrier
277V (50/60Hz only) (See note 3)
240/415V (50/60Hz only)
277V/480V (50/60Hz only) (See note 4)
Handle guard, (available in ZX, BX and snap-in
versions only)
1/4 - 20 stud (M6 stud when -A option is selected)
(<=70A requires -K, if >70A do not use -K)
Handle lock
Handle in opposite pole
Snap-in face plate adapter
120/240V 50/60Hz
Wire clamp supplied (VDE approved up to
and including 16.0 amps)
Handle guard with no actuation feature
(BX rocker only)
Silver 5/16" (.312") bullet
Gold 5/16" (.312") bullet
Optional
The shaded areas denote VDE and CCC
(if applicable) Approval options. This approval
requires the addition of a V at the end of the
part number. The V will be added to any part
number formed entirely from shaded decisions.
If non-shaded areas are selected, the unit will not
be VDE or CCC Approved, but other approvals
still apply.
V = VDE and CCC Approved
Description
Note: CCC Approval is pending.
-0
-1
-1REC4
-1REC5
-1REG4
-1RS4
-1RLS4
-1RS5
-3
-4
Switch only (50, 70 or 100 amp switch)
Series
Series with auxiliary switch*
.110 quick connect
Series with auxiliary switch*
.187 quick connect
Series with auxiliary switch
.110 quick connect
Series with alarm switch,
electrical trip, .110 quick connect
terminals
Series with alarm switch,
electrical trip, .110 quick connect
terminals (mid-trip only)
Series with alarm switch,
electrical trip, .187 quick connect
terminals
Shunt
Relay (not available in IEL/IELX)
This approval requires the addition of a C at the end
of the part number. The unit will not be VDE Approved.
C = CCC Approved
MARKING DETAIL “A” (SEE TABLE)
LOAD LOAD
LINE
LOAD LOAD
LINE LINELINE
FIG. 2 FIG. 3 FIG. 4 FIG. 5
FIG. 1 FIG. 6
OFFON
ON
OFF
OFFON
ON
OFF
OO
O
O
LINE LINE
ROCKER
HANDLE
COLOR
INDICATING
COLOR
INDICATING
COLOR
ROCKER
HANDLE
COLOR
INDICATION “ON”
Mounting/Indicator Code: A, B, C
INDICATION “OFF”
Mounting/Indicator Code: F, G, H
ON
I
ON
I
O
OFF
OFF
O
INDICATION “OFF”
Mounting/Indicator Code: M, N, P, R
MARKING DETAIL “C” (SEE TABLE)
FIG. 2 FIG. 3 FIG. 6
LINE
LOAD LOAD
LINE
O
OFF ON
O
O
ON
OFF
MARKING DETAIL “B” (SEE TABLE)
FIG. 2 FIG. 3 FIG. 4 FIG. 5
FIG. 1 FIG. 6
OFFON
ON
OFF
OFFON
ON
OFF
OO
O
O
LINE
LOAD
LOAD LINE LOAD LINE LOAD LINE
LINE
ROCKER
HANDLE
COLOR
INDICATING
COLOR
ON
I
INDICATION “ON”
Mounting/Indicator Code: J, K, L
OFF
O
LINE
Second Decision
Single pole
Two pole
Three pole
Four pole*
1
11
111
1111
2
Poles
*Not available in toggle seal handle type. Consult factory
for 5 and 6 pole IEL part number.
Internal Configuration
Third Decision
3
* Only one auxiliary switch is normally supplied on two or three
pole units. Switch is located in the right-hand pole (viewed from
terminal end) unless otherwise specified.
1234
IEL 1 - 1REC4- 61- 20.0 - 01 - V
57
Example:
Black
Yellow
Red
Blue
Green
Orange
White
-00
-10
-20
-30
-40
-60
-90
-01 (STD)
-11
-21
-31
-41
-61
-91
Seventh Decision
7
Handle Color and Marking Selection
IAL, IUL, IEL, IALH,
IULH, IELH - Toggle Handle
Marked*
ON-OFF
Color Unmarked I-O
Fifth Decision
5
Rated Current
Use three numbers to print required current
value between .100 amps minimum and
100.0 amps maximum.
For example, use:
.100 or 2.00 or 10.0
The VDE (lth) will be 95% of the UL/CSA
rated current.
Fourth Decision
4
Frequency & Delay
Switch only
400Hz short delay
400Hz long delay
400Hz motor start
400Hz 150% instant trip
DC short delay
DC long delay
DC motor start
DC 125% instant trip
50/60Hz short delay
50/60Hz long delay
50/60Hz motor start
50/60Hz 125% instant trip
DC/60Hz short delay
DC/60Hz long delay
DC/60Hz motor start
DC/60 Hz 135% instant trip
For addition of inertial delay, add an ìFî to any
delay numeral.
SW
-41
-42
-43
-49
-51
-52
-53
-59
-61
-62
-63
-69
-71
-72
-73
-79
Notes: A. Bezels of IALBX, IULBX, IELB, IELBX are black.
B. Consult factory for other marking options.
Note: CCC Approval is pending.
Black
Red
Grey
Orange
White
-00
-20
-40
-50
-90
-01
-21
-41
-51
-91
-02
-22
-42
-52
-92
-03
-23
-43
-53
-93
-04
-24
-44
-54
-94
-05
-25
-45
-55
-95
-06
-26
-46
-56
-96
I-O
Fig.2
Unmarked
Marking
Detail
Seventh Decision
7
Rocker Handle Color, Indicator Color and Marking Selection (See Notes)
IALX, IULX, IELX, IALZX, IULZX, IELZX Rocker Handle (Single Rocker Color)
Rocker
Handle
Color
Indicating
Color
Marking
Color Indicates:
On-Off
Fig.1
On-Off
I-O
Fig.3
On-Off
I-O
Fig.6
I-O
Fig.5
On-Off
Fig.4
A
Vertical Mounting Horizontal Mounting
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Black
Black
Black
White
Red
Green
White
White
White
On
On
On
-J0
-K0
-L0
-J1
-K1
-L1
-J2
-K2
-L2
-J3
-K3
-L3
-J4
-K4
-L4
-J5
-K5
-L5
-J6
-K6
-L6
B
C
White
White
Black
Black
Black
IALZX, IULZX, IELZX Rocker Handle (Dual Rocker Color)
Black
Black
Black
Black
Black
Black
White
Red
Green
White
Red
Green
White
White
White
White
White
White
On
On
On
Off
Off
Off
-A0
-B0
-C0
-F0
-G0
-H0
-A1
-B1
-C1
-F1
-G1
-H1
-A2
-B2
-C2
-F2
-G2
-H2
-A3
-B3
-C3
-F3
-G3
-H3
-A4
-B4
-C4
-F4
-G4
-H4
-A5
-B5
-C5
-F5
-G5
-H5
-A6
-B6
-C6
-F6
-G6
-H6
Black
Black
Black
Black
White
Red
Green
Yellow
White
Red
Green
Yellow
Off
Off
Off
Off
-M0
-N0
-P0
-R0
N/A
N/A
N/A
N/A
-M2
-N2
-P2
-R2
-M3
-N3
-P3
-R3
N/A
N/A
N/A
N/A
-M6
-N6
-P6
-R6
N/A
N/A
N/A
N/A
A
IALBX, IULBX, IELBX, LELBX Rocker Handle (Dual Rocker Color)
IALBX
**IULBX
***IELBX
**IMLBX
One handle per unit
One handle per pole
One handle per unit
panel seal
One handle per unit,
rocker, bracket mounting
One handle per unit,
rocker, integral mounting
One handle per unit
UL 1500
One handle per pole
UL 1500
One handle per unit
mid trip indication
One handle per pole
mid trip indication
One handle per unit,
rocker, accidental-off
protection
One handle per unit,
mid trip indication, rocker,
accidental-off protection
*UL Recognized
**UL Recognized, CSA Certified
***UL Recognized, CSA Certified, VDE Approved
*** IML
*** IMLH
Select Type and Terminal
First Decision
1
IAL
**IUL
***IEL
IALH
**IULH
***IELH
IALN
***IULN
IALX
**IULX
***IELX
IALZX
**IULZX
***IELZX
* IDL
* IDLH
Type Terminal
Standard screw terminal,
no designation required
Stud terminals
Clip terminals
Bullet terminals
K
C
B
Sixth Decision
6
Notes:
1. One or more descriptions may be used as required.
2. When this is not used, table one may be substituted and U.S. thread and
two lockwashers will be supplied. Unit will be rated at 250V (50/60Hz only.)
3. VDE approved at 250Vac
4. VDE approved at 415Vac
-A
-B
-C
-D
-E
-G
-K
-L
-M
-P
-U
-W
-X
-1
-2
Standard hardware. No designation required.
Metric thread mounting inserts and terminals
Barrier
277V (50/60Hz only) (See note 3)
240/415V (50/60Hz only)
277V/480V (50/60Hz only) (See note 4)
Handle guard, (available in ZX, BX and snap-in
versions only)
1/4 - 20 stud (M6 stud when -A option is selected)
(<=70A requires -K, if >70A do not use -K)
Handle lock
Handle in opposite pole
Snap-in face plate adapter
120/240V 50/60Hz
Wire clamp supplied (VDE approved up to
and including 16.0 amps)
Handle guard with no actuation feature
(BX rocker only)
Silver 5/16" (.312") bullet
Gold 5/16" (.312") bullet
Optional
The shaded areas denote VDE and CCC
(if applicable) Approval options. This approval
requires the addition of a V at the end of the
part number. The V will be added to any part
number formed entirely from shaded decisions.
If non-shaded areas are selected, the unit will not
be VDE or CCC Approved, but other approvals
still apply.
V = VDE and CCC Approved
Description
Note: CCC Approval is pending.
-0
-1
-1REC4
-1REC5
-1REG4
-1RS4
-1RLS4
-1RS5
-3
-4
Switch only (50, 70 or 100 amp switch)
Series
Series with auxiliary switch*
.110 quick connect
Series with auxiliary switch*
.187 quick connect
Series with auxiliary switch
.110 quick connect
Series with alarm switch,
electrical trip, .110 quick connect
terminals
Series with alarm switch,
electrical trip, .110 quick connect
terminals (mid-trip only)
Series with alarm switch,
electrical trip, .187 quick connect
terminals
Shunt
Relay (not available in IEL/IELX)
This approval requires the addition of a C at the end
of the part number. The unit will not be VDE Approved.
C = CCC Approved
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - LEL Decision Tables
149
Second Decision
Single pole
Two pole
Three pole
1
11
111
2
Poles
Fifth Decision
5
Rated Current
Use three numbers to print. Required value between
.050 amps minimum and 100 amps maximum.
Fourth Decision
4
Frequency and Delay
DC short delay
DC long delay
DC motor start
DC 125% instant trip
50/60Hz short delay
50/60Hz long delay
50/60Hz motor start
50/60Hz 125% instant trip
For addition of inertial delay, add an “F” to any
delay numeral.
*Not available above 100 amps.
-51
-52
-53*
-59
-61
-62
-63
-69
The shaded areas denote VDE and CCC (if applicable)
Approval options. This approval requires the addition of
a V at the end of the part number. The V will be added to
any part number formed entirely from shaded decisions.
If non-shaded areas are selected, the unit will not be
VDE or CCC Approved, but other approvals still apply.
V = VDE and CCC Approved
The approval requires the addition of a C at the end
of the part number. The unit will not be VDE Approved.
C = CCC Approved
1234
LEL 1 - 1REC4 -61 -20.0 - 01 - V
57
Example:
Third Decision
3
* Used only with mid-trip.
-1
-1REC4
-1REC5
-1REG4
-1RS4
-1RLS4
Series
Series with auxiliary switch
.110 quick connect
Series with auxiliary switch
.187 quick connect
Series with auxiliary switch
(gold contacts)
.110 quick connect
Series with alarm switch,
electrical trip,
.110 quick connect
Series with alarm switch,
electrical trip,
.110 quick connect*
Internal Configuration
Note: Other options available, consult factory.
One handle per unit
One handle per pole
One handle per unit, mid-trip
indication
One handle per pole, mid-trip
indication
One handle per unit, rocker,
integral mounting
One handle per unit, rocker,
mid-trip indication, integral mounting
One handle per unit, rocker,
accidental-off protected
One handle per unit, rocker,
mid-trip indication, accidental-off
protected
LEL
LELH
LML
LMLH
LELZX
LMLZX
LELBX
LMLBX
Select Type and Terminal
First Decision
1
Type Terminal
Standard screw terminal,
no designation required
Stud terminals
Clip terminals
Bullet terminals
K
C
B
Description
Sixth Decision
Metric thread mounting inserts
and terminals
Barrier
240V 50/60Hz
Handle guard, (available in ZX, BX and
snap-in versions only)
1/4 - 20 Stud (M6 Stud when -A
option is selected) ( 50A requires -K,
>50A do not use -K)
Handle Lock
Handle in opposite pole
Snap-in mounting plate adapter
120/240Vac, 5000 A.I.C., 70A max.
2 pole only with barrier (VDE 250Vac)
125VDC
Handle guard with no actuate
"off" feature (see detail C)
Silver 5/16" (.312") bullet
Gold 5/16" (.312") bullet
-A
-B
-F
-G
-K
-L
-M
-P
-U
-V
-X
-1
-2
6
Optional
Notes:
1. One or more descriptions may be used as required.
2. When this decision is not used, decision 7 may be
substituted and U.S. thread will be supplied.
3.If (M5 or M6) studs are required, use “A” only on an LELK.
Seventh Decision
7
LEL Toggle Handle Color Selection
Black w/ white markings
Yellow w/ black markings
Red w/ white markings
Blue w/ white markings
Green w/ white markings
Orange w/ black markings
White w/ black markings
-01
-11
-21
-31
-41
-61
-91
See alternate 7th Decision for ZX and BX Rocker Handles.
Notes: The LEL family of circuit breakers are designed to meet 8mm creepage and clearance requirements for installation Category 111, pollution degree 3, Case A as mea-
sured in IEC 664. Intended for use in equipment designed to comply with IEC 380, 435, 601 AND VDE 0730, 0804 & 0805.
LEL DECISION TABLES
http://airpax.sensata.com/ IAL/IUL/IEL/LEL Series - LEL Decision Tables 150
IAL/IUL/IEL/LEL
LINE LINE
FIG. 2 FIG. 3 FIG. 4 FIG. 5
FIG. 1 FIG. 6
ROCKER HANDLE
COLOR
INDICATING COLOR
INDICATING
COLOR
ROCKER HANDLE
COLOR
INDICATION “ON”
Mounting/Indicator Code: A, B, C
LOAD LOAD
LINE
LOAD LOAD
LINE
INDICATION “OFF”
Mounting/Indicator Code: F, G, H
LINELINE
Area reserved for
amperage marking.
ON
I
ON
I
O
OFF
OFF
O
OFF ON
ON
OFF
O
OFF ON
OO
O
ON
OFF
MARKING DETAIL “A” (SEE TABLE)
FIG. 2 FIG. 3 FIG. 4 FIG. 5
FIG. 1 FIG. 6
OFF OFF
O
O
LINE
LOAD LINE LOAD LINE LOAD LINE
MARKING DETAIL “B” (SEE TABLE)
OFFON
ON OFFON
ON
O
O
LOAD
LINE
ROCKER HANDLE
COLOR
INDICATING COLOR
ON
I
INDICATION “ON”
Mounting/Indicator Code: J, K, L
OFF
O
Notes: A. Bezels of IALBX, IULBX, IELB, IELBX are black.
B. Consult factory for other marking options.
Black
Red
Grey
Orange
White
-00
-20
-40
-50
-90
-01
-21
-41
-51
-91
-02
-22
-42
-52
-92
-03
-23
-43
-53
-93
-04
-24
-44
-54
-94
-05
-25
-45
-55
-95
-06
-26
-46
-56
-96
I-O
Fig.2
Unmarked
Marking
Detail
Seventh Decision
7
Rocker Handle Color, Indicator Color and Marking Selection (See Notes)
LELZX & LMLZX Rocker Handle (Single Rocker Color)
Rocker
Handle
Color
Indicating
Color
Marking
Color Indicates:
On-Off
Fig.1
On-Off
I-O
Fig.3
On-Off
I-O
Fig.6
I-O
Fig.5
On-Off
Fig.4
A
Vertical Mounting Horizontal Mounting
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Black
Black
Black
White
Red
Green
White
White
White
On
On
On
-J0
-K0
-L0
-J1
-K1
-L1
-J2
-K2
-L2
-J3
-K3
-L3
-J4
-K4
-L4
-J5
-K5
-L5
-J6
-K6
-L6
B
C
White
White
Black
Black
Black
LELZX & LMLZX Rocker Handle (Dual Rocker Color)
Black
Black
Black
Black
Black
Black
White
Red
Green
White
Red
Green
White
White
White
White
White
White
On
On
On
Off
Off
Off
-A0
-B0
-C0
-F0
-G0
-H0
-A1
-B1
-C1
-F1
-G1
-H1
-A2
-B2
-C2
-F2
-G2
-H2
-A3
-B3
-C3
-F3
-G3
-H3
-A4
-B4
-C4
-F4
-G4
-H4
-A5
-B5
-C5
-F5
-G5
-H5
-A6
-B6
-C6
-F6
-G6
-H6
Black
Black
Black
Black
White
Red
Green
Yellow
White
Red
Green
Yellow
Off
Off
Off
Off
-M0
-N0
-P0
-R0
N/A
N/A
N/A
N/A
-M2
-N2
-P2
-R2
-M3
-N3
-P3
-R3
N/A
N/A
N/A
N/A
-M6
-N6
-P6
-R6
-M5
-N5
-P5
-R5
A
LELBX Rocker Handle (Dual Rocker Color)
INDICATION “OFF”
Mounting/Indicator Code: M, N, P, R
NO
ACTUATION
ACCESS
OPTIONAL
HANDLE
POSITION “OFF”
WITH GUARD
HANDLE
POSITION “ON”
WITH GUARD
MARKING DETAIL “C” (SEE TABLE)
FIG. 2 FIG. 3 FIG. 6
LINE
LOAD LOAD
LINE
O
OFF ON
O
O
ON
OFF
MARKING DETAIL “A” (SEE TABLE)
LOAD LOAD
LINE
LOAD LOAD
LINE LINELINE
FIG. 2 FIG. 3 FIG. 4 FIG. 5
FIG. 1 FIG. 6
OFFON
ON
OFF
OFFON
ON
OFF
OO
O
O
LINE LINE
ROCKER
HANDLE
COLOR
INDICATING
COLOR
INDICATING
COLOR
ROCKER
HANDLE
COLOR
INDICATION “ON”
Mounting/Indicator Code: A, B, C
INDICATION “OFF”
Mounting/Indicator Code: F, G, H
ON
I
ON
I
O
OFF
OFF
O
INDICATION “OFF”
Mounting/Indicator Code: M, N, P, R
MARKING DETAIL “C” (SEE TABLE)
FIG. 2 FIG. 3 FIG. 6
LINE
LOAD LOAD
LINE
O
OFF ON
O
O
ON
OFF
MARKING DETAIL “B” (SEE TABLE)
FIG. 2 FIG. 3 FIG. 4 FIG. 5
FIG. 1 FIG. 6
OFFON
ON
OFF
OFFON
ON
OFF
OO
O
O
LINE
LOAD
LOAD LINE LOAD LINE LOAD LINE
LINE
ROCKER
HANDLE
COLOR
INDICATING
COLOR
ON
I
INDICATION “ON”
Mounting/Indicator Code: J, K, L
OFF
O
LINE
http://airpax.sensata.com/
IAL/IUL/IEL/LEL Series - LELHP Decision Tables
LELHPK 11 - 1REC4 - 51 - 125. - 01 -V
See alternate 7th Decision for ZX and BX Rocker Handles.
151
LELHP DECISION TABLES
