APL/UPL Series
“Existing Design-In Only”
APL/UPL
APL/UPL Series
Hydraulic Magnetic Circuit Protectors
INTRODUCTION
IMPORTANT NOTICE: The APL/UPL is a legacy
product and no new design-in orders are being
accepted. We are also discontinuing the 205 series
(APL with dust proof enclosure). If the specifications
for any of these products are necessary for your
system, Sensata Technologies recommends utilizing
the Airpax™ IAL series.
The APL/UPL magnetic circuit protector provides reliable,
low-cost power switching, circuit protection and circuit
control. The handle opens and closes a circuit, under normal
load conditions, similar to an ON-OFF switch. Upon overload,
the internal mechanism trips, opens the contacts and forcibly
returns the handle to the OFF position. Since the protector is
“trip free,” the internal contacts will not remain closed in the
presence of an overload, even though the handle is held in the
ON position.
The APL/UPL line offers many configurations including series,
shunt and relay with a choice of delays and ratings. APL/UPL
multi-pole assemblies are available with a mix of current ratings,
delays and internal circuit configurations.
While designed for industrial, military and information processing
applications, the APL is suitable for use in any situation where
precision operation is required. Most versions of the APL
family are recognized by UL per UL STD. 1077 as supplementary
protectors and certified by CSA per CSA STD. C22.2–No. 235
as supplementary protectors and are designated with the UPL
prefix.
.750 MAX.
[19.05]
1.438
[36.53]
.402
[10.21]
.220
[5.59]
6-32 THD. (M3 ISO. THD. OPTIONAL)
.187 [4.75] DEEP (TWO PLACES)
2.060 ± .010
[52.32 ± 0.25] ONON
.150
[3.81]
2.530 MAX.
[64.26]
MAX.
2.020
[51.31]
.675
[17.14] Note: Tolerance ± .015 [.38]
unless noted. Dimensions in
brackets [ ] are millimeters.
APL/UPL
Single Pole Toggle
MULTI-POLE CIRCUIT PROTECTORS
Multi-pole protectors are combined in an assembly with the
actuating handles linked and the trip mechanisms internally
coupled. A fault in either protected circuit opens all poles
simultaneously. Applications include use in two-phase circuits,
single-phase three-wire systems or in two or more related but
electrically isolated circuits. A mix of delays, ratings and
configurations is possible, with the series type having any of
the auxiliary switches listed. Combinations up to nine poles are
available.
(SEE TABLE)
“A”
.75 ± .015
[19.05 ± .38]
(TYP)
ON
ON
1.448
[36.78]
.432
[10.97]
2.280
[57.91]
.750
[19.05]
.432
[10.97]
1.448
[36.78]
2.060
[52.32]
1.530
[38.86] Ø 4X .156
[3.96]
.432
[10.97]
1.448
[36.78]
Ø 2X .156
[3.96]
.755
[19.18]
2.060
[52.32]
.750
[19.05]
.750
[19.05]
2.060
[52.32]
Ø 6X .156
[3.96]
One Pole
Two Pole
Three Pole
Mounting Details
Panel Mounting Tolerances: ±.005 [.13] unless noted.
MULTI-POLE DIMENSIONS
2 pole “A” 1.515 [38.48] max
3 pole “A” 2.265 [57.53] max
4 pole “A” 3.015 [76.58] max
5 pole “A” 3.765 [95.63] max
6 pole “A” 4.515 [114.68] max
7 pole “A” 5.265 [133.73] max
8 pole “A” 6.015 [152.78] max
9 pole “A” 6.765 [171.83] max
Note: Dimension “A” varies with # of poles
APL/UPL Series
APL/UPL
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 over-current protection, it’s simultaneously used
as an on-off switch.
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 is available. Gold contacts are not
recommended for load current above 100 milliamps.
The contacts on our optional RS auxiliary switch will open
only in the event of an electrical trip of the circuit breaker.
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.
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 immediately upon tripping.
Dual Coil
Dual coil protectors provide remote shut down option and
normal overcurrent protection in the confines of a single
breaker pole. This construction saves space by eliminating the
need for an additional pole for the voltage trip function.
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, relay or dual coil
configurations.
APL/UPL CONFIGURATIONS
.187
[4.75]
.312
[7.92]
.187
[4.75]
.110
[2.79]
.295
[7.49]
REG 4
REC 4
REG 5
REC 5
RS
.281 ± .020
(7.14 ± 0.51)
1.940
[49.28]
BREAKER IN OFF
POSITION
LINE
LOAD
NC
NO
C
( 50 AMP)
LOAD
LINE
(>50 AMP)
LOAD
LINE
.625 ± .031
(15.88 ± 0.79) .281 ± .020
(7.14 ± 0.51)
.675 ± .050
(17.15 ± 1.27)
.280
(7.11)
1.940
(49.28)
1.290 ± .031
(32.77 ± 0.79)
.280 ± .031
(7.11 ± 0.79)
1.056 ± .031
(26.82 ± 0.79)
.648 ± .031
(16.46 ± 0.79)
.667 ± .020
[16.94 ± 0.51]
1.940
[49.28]
.281 ± .020
[7.14 ± 0.51]
.625 ± .031
[15.88 ± 0.79]
.667 ± .020
[16.94 ± 0.51]
1.275 ± .020
[32.38 ± 0.51]
1.940
[49.28]
.281 ± .020
[7.14 ± 0.51]
.625 ± .031
[15.88 ± 0.79]
TRIP
SHUNT
TRIP
NO VOLTAGE
COIL
DUAL
RATING
DUAL
TRIP
RELAY
COIL
DUAL
LOAD
LINE
COIL.V
LINE
LOAD
LOAD
LOAD
LINE
LOAD
RELAY
RELAY
LINE
COIL
COIL LINE
LOAD
COIL
COIL
LINE
LOAD
Series Trip (See Note A)
Series Trip with Auxiliary Switch
Shunt, Relay and Dual Coil
Notes:
Tolerance ± .015 [.38] unless noted.
Dimensions in brackets [ ]
are millimeters.
A Terminal sizes: 10-32 THD (<50
AMP), ¼ -28 THD (>50 AMP) Metric
Terminals (Optional),
M5 x 0.8 THD (<50 AMP).
B Minimum useable thread
length: 10-32 THD (.250 on
breakers without terminal
boards, .160 with terminal
boards) ¼ - 28 THD (.200).
APL/UPL
Inrush Pulse Tolerance (typ)
The following table provides a comparison of inrush pulse
tolerance with and without the inertial delay feature for each
of the 50/60Hz delays. 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.
APL/UPL OPERATING CHARACTERISTICS
0.050 AMPS TO 50 AMPS - PERCENTAGE OF RATED CURRENT VS TRIP TIME IN SECONDS AT +25°C
Voltage Delay 100% 125% (Note A) 150% 200% 400% 600% 800% 1000%
400 Hz
40 No Trip May trip .050 max. .040 max. .030 max. .025 max. .020 max. .018 max.
41 No Trip May trip .6 to 7 .2 to 2 .020 to .4 .007 to .25 .004 to .15 .004 to .040
42 No Trip May trip 5 to 70 2 to 22 .4 to 3.8 .015 to 2 .006 to .4 .004 to .1
43 No Trip May trip 40 to 280 9 to 70 1.3 to 15 .2 to 3.75 .023 to .6 .010 to .050
49 No Trip .180 max. .120 max. .050 max. .022 max. .017 max. .017 max. .017 max.
DC
50 No Trip May trip .032 max. .024 max. .020 max. .018 max. .016 max. .015 max.
51 No Trip .70 to 8 .40 to 4 .1 to 1.7 .02 to .30 .008 to .15 .004 to .06 .004 to .030
52 No Trip 8 to 100 3 to 30 .7 to 10 .18 to 2.5 .030 to 1 .004 to .5 .004 to .3
53 No Trip 80 to 600 30 to 300 10 to 100 1.5 to 15 .1 to 5 .008 to .3 .007 to .07
59 No Trip .100 max. .070 max. .032 max. .020 max. .016 max. .016 max. .016 max.
50/60 Hz
60 No Trip May trip .040 max. .035 max. .030 max. .025 max. .020 max. .018 max.
61 No Trip 1 to 18 .4 to 4 .180 to 1.8 .03 to .3 .009 to .15 .003 to .1 .003 to .08
62 No Trip 10 to 120 6 to 60 2 to 22 .2 to 2 .05 to .75 .015 to .15 .01 to .10
69 No Trip .180 max. .120 max. .050 max. .022 max. .017 max. .017 max. .017 max.
64 No Trip .7 to 10 .35 to 4.5 .15 to 1.5 .05 to .4 .025 to .3 .020 to .22 .015 to .15
65 No Trip 8 to 80 5.5 to 55 2 to 20 .5 to 5 .2 to 2 .06 to 1 .016 to .60
66 No Trip 50 to 700 30 to 350 10 to 100 1.5 to 20 .7 to 7 .1 to 3 .02 to 2
DC 50/60 Hz
70 No Trip May trip .040 max .035 max. .030 max. .025 max. .020 max. .018 max.
71 No Trip .35 to 14 .18 to 7.5 .10 to 3 .025 to 1 .015 to .30 .01 to .15 .007 to .10
72 No Trip 6.5 to 115 3 to 65 1.2 to 20 .08 to 3 .018 to 2.5 .015 to .80 .009 to .25
73 No Trip 45 to 700 25 to 400 10 to 175 .75 to 20 .12 to 4.5 .025 to 1 .01 to .25
ABOVE 50 AMPS - PERCENTAGE OF RATED CURRENT VS TRIP TIME IN SECONDS AT +25°C
Voltage Delay 100% 125% (Note A) 150% 200% 400% 600% 800% 1000%
DC
50 No Trip May trip .100 max. .070 max. .032 max. .020 max. .020 max. .020 max.
51 No Trip .5 to 8 .3 to 4 .1 to 1.7 .02 to .3 .08 to .150 .004 to .060 .004 to .03
52 No Trip 2.5 to 100 1.5 to 40 .62 to 15 .15 to 2.5 .03 to 1 .004 to .5 .004 to .3
59 No Trip .100 max. .070 max. .032 max. .020 max. .016 max. .016 max. .016 max.
50/60 Hz
60 No Trip May trip .120 max. .050 max. .022 max. .017 max. .017 max. .017 max.
61 No Trip .7 to 18 .35 to 4 .130 to 1.8 .030 to .3 .008 to .150 .003 to .1 .003 to .08
62 No Trip 10 to 120 6 to 60 2 to 22 .2 to 2 .050 to .750 .007 to .15 .005 to .10
69 No Trip .180 max. .120 max. .050 max. .022 max. .017 max. .017 max. .017 max.
64 No Trip May trip .2 to 8 .15 to 7.6 .05 to .73 .025 to .3 .020 to .22 .015 to .15
65 No Trip May trip 3 to 55 2 to 20 .3 to 5 .13 to 2 .06 to 1 .016 to .60
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: 130% for delays 49, 135% for delays 71, 72 and 73
All trip curves and trip currents are specified with the
breaker mounted in the normal vertical position at ambient
temperature of +25°C. Protectors do not carry current prior
to application of overload.
DELAY 60
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 61
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0
100
125
200
300
400
500
600
700
800
DELAY 62
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0
100
125
150 200 300 400 500 600 700 800
DELAY 69
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
150
MAY TRIP
MAY TRIP
MAY TRIPMAY TRIP
60Hz Delay Curves (typ)
A choice of delays are offered for 60Hz applications. Delays
60 and 69 are fast acting non-delayed tripping to protect
sensitive electronic equipment (not recommended where
known inrush exists). Delay 61 has a short delay for general
purpose applications. Delay 62 is long enough to start
certain types of motors and most transformers and
capacitor loads. Delay 63 is an extra long delay primarily for
special motor applications.
PULSE TOLERANCES
Delay Pulse Tolerance
61, 62 12 times (approx.) rated current
61F, 62F 20 times (approx.) rated current
64, 65, 66 20 times (approx.) rated current
64F, 65F, 66F 35 times (approx.) rated current
Note: These limits do not apply to dual coil and tapped coil units
APL/UPL
DELAY 64
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 65
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 66
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
MAY TRIP
MAY TRIP
MAY TRIP
Delays 64, 65 and 66
Delays 64, 65 and 66 are the latest 50/60Hz delays with short, medium
and long trip times respectively. The patented protector design
provides both increased tolerance to high inrush induced nuisance
tripping and longer trip times at 600 percent. These delays are
ideally suited for applications where thermal devices are presently
used, such as motor protection or where short duration, high inrush
currents are experienced. As shown in a typical motor start-up
curve, the delay 66 will provide locked rotor and overload
protection. Nuisance tripping is avoided since acceptable short
periods of overload will not trip the protector.
DC/50/60Hz Delay Curves (typ)
(Multi-frequency)
A choice of delays is offered for combined DC and 50/60Hz
operation. Delay 70 is fast acting, non-delayed tripping to
protect sensitive electronic equipment (not recommended
where known inrush exists). Delay 71 has a short delay for
general purpose applications. Delay 72 is long enough to start
certain types of motors and most transformer and capacitor
loads. Delay 73 is an extra long delay primarily for special
motor applications.
DELAY 70
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 72
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0 100
125
150 200 300 400 500 600 700 800
DELAY 71
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 73
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0 100
125
150 200 300 400 500 600 700 800
MAY TRIP
MAY TRIP
MAY TRIP
MAY TRIP
APL/UPL
DELAY 50
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 51
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 52
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0 100
125
150 200 300 400 500 600 700 800
DELAY 53
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 59
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
MAY TRIP
MAY TRIP
MAY TRIP
MAY TRIP
DC Delay Curves (typ)
A choice of delays is offered for DC applications.
Delays 50 and 59 provide fast acting, non-delayed
tripping to protect sensitive electronic equipment
(not recommended where known inrush exists).
Delay 51 has a short delay for general purpose
applications. Delay 52 is long enough to start certain
types of motors. Delay 53 is an extra long delay used
primarily for special motor applications.
DELAY 40
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
1000900
DELAY 41
800700600500400300200150
125
1000
TIME IN SECONDS
10
1
.1
1000
100
.01
10000
.001
PERCENT OF RATED CURRENT
1000900
DELAY 42
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 43
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
125
150 200 300 400 500 600 700 800
DELAY 49
900 1000
PERCENT OF RATED CURRENT
.001
10000
.01
100
1000
.1
1
10
TIME IN SECONDS
0100
130
150 200 300 400 500 600 700 800
MAY TRIP
MAY TRIPMAY TRIP
MAY TRIP
MAY TRIP
400Hz Delay Curves (typ)
A choice of delays is offered for 400Hz applications.
Delays 40 and 49 are fast acting, non-delayed
tripping to protect sensitive electronic equipment
(not recommended where known inrush exists).
Delay 41 has a short delay for general purpose
applications. Delay 42 is long enough to start certain
types of motor and most transformers and capacitor
loads. Delay 43 is an extra long delay primarily for
special motor applications.
APL/UPL
Trip Free
Will trip open on overload, even when the handle is forcibly
held on or restrained. This prevents operator from damaging
the circuit by holding the handle in the ON position.
Trip Indication
The operating handle moves positively to the OFF position on
overload.
Ambient Operation
Operates normally in temperatures between –40°C and +85°C.
Insulation Resistance
Not less than 100 megohms at 500Vdc.
Dielectric Strength
Withstands 1500Vac at 60Hz for 60 seconds or 1800Vac for
one second from terminal to terminal, and from auxiliary
switch terminal to main terminal.
Endurance
Per UL 1077 (6000 operations at rated load plus 4000
operations with no load). Tested at a maximum rate of 6 times
per minute. Rating above 50 amperes operate a minimum of
5000 operations.
Shock
Withstands 100G or more without tripping while carrying full
rated current per MIL-Std-202, Method 213, Test Condition I.
Instantaneous types (delay 40, 50, 60 and 49, 59, 69) and dual
coil configurations are tested at 80% of rated current.
Protectors mounted in the handle down position are to be
tested with no current applied (per MIL-PRF-55629).
Vibration
Withstands 10G without tripping while carrying full rated
current per MIL-Std-202, Method 204, Test Condition A.
Instantaneous types (delay 40, 50, 60 and 49, 59, 69) and dual
coil configurations are tested at 80% of rated current.
Dual Coil Ratings
5-65Vdc and 5-250Vac for three terminal configurations.
5-120Vac and 5-120Vdc for four terminal configurations. Not
available in delays 64, 65 and 66.
APL Ratings
0.050-50 amperes, 65Vdc, 250Vac maximum, 50/60Hz or 400Hz.
51-100 amperes at 65Vdc and 120Vac maximum. Ratings of
0.050-20 amperes at 277Vac, 50/60Hz are available upon
request.
Auxiliary Switch Ratings
REC4 and REC5 are rated at 10 amperes, 250Vac or 3
amperes, 50Vdc. REG4 and REG5 are rated at 0.1 amperes,
125Vac.
UPL Ratings
UPL protectors are UL STD. 1077 (File No. E-66410) and CSA
STD. C22.2–No. 235 (File No. LR-26229) recognized as
supplementary protectors in the following configurations and
ratings. Consult factory for further information.
Configurations
Series, Shunt, Relay, Auxiliary Switch, Switch Only, Dual Coil,
No Voltage.
Poles
One through nine.
Moisture Resistance
Designed to meet the requirements of MIL-PRF-55629 when
tested in accordance with Method 106 of MIL-Std-202.
Salt Spray (Corrosion)
Designed to meet the requirements of MIL-PRF-55629 when
tested in accordance with Method 101 of MIL-Std-202.
APL/UPL SPECIFICATIONS
APPROXIMATE WEIGHT PER POLE
Ounces Grams
3.7 103
RECOMMENDED TORQUE SPECIFICATIONS
Component Torque (in-lbs)
6-32 Mounting Inserts 6 to 8
M3 Mounting Screws 4 to 5
10-32 Screw Terminals 13 to 14
M5 Stud Terminals 13 to 14
1/4 - 20 Stud Terminals 25 to 30
Where applicable, mechanical support must be provide to the terminals when
applying torque
APL/UPL - NOMINAL DCR / IMPEDANCE
Current
Ratings
(Amps)
Resistance (ohms) Impedance (ohms) Impedance (ohms)
DC Delays AC, 50/60Hz Delays AC, 400Hz Delays
50 59 51, 52, 53 Dual Coil
51, 52, 53 60 69 600, 61, 62
71, 72, 73
64, 65, 66
Dual Coil 61, 62 40, 49 41, 42, 43
0.05 162 540 460 640 174 419 582 691 1975 1195
0.10 35.4 105 155 150 42.5 103.4 119.0 160 495 284
0.50 1.2 4.2 4.5 5.6 1.9 4 4.1 6.2 22 12
1.0 .236 1.02 1.2 1.41 .41 .955 1.08 1.56 5.01 2.72
5.0 .021 .048 .059 .070 .030 .045 .048 .068 .240 .140
10.0 .0060 .0121 .0140 .0160 .0075 .0105 .0134 .0174 .0520 .0283
15.0 .0040 .0067 .0092 .0100 .0038 .0068 .0070 .0120 .0260 .0140
20.0 .0032 .0047 .0052 .0070 .0024 .0049 .0050 .0069 .0140 .0088
30.0 .0021 .0036 .0036 .0040 .0022 .0032 .0035 .0037 .0079 .0043
50.0 .0020 .0024 .0026 .0023 .0020 .0020 .0025 .0030 .0036 .0028
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
APL/UPL - RATINGS
Configurations Current Ratings (Amps) Maximum Voltage Ratings Interrupting Capacity (Amps) Series Fuse
Series and Shunt
0.050 - 50 65Vdc 5000 None
0.050 - 100 65Vdc 3000 None
0.050 - 60 120Vac (50/60Hz) 1000 None
0.050 - 50 120Vac (50/60Hz) 5000 4X (120 max.)
0.050 - 20 277Vac (50/60Hz) 5000 4X
0.050 - 50 250Vac (50/60Hz) 5000 4X (120 max.)
0.050 - 50 120Vac (400Hz) 1500 None
21 - 50 250Vac (400Hz) 1000 None
0.050 - 20 250Vac (400Hz) 2100 None
Relay
0.050 - 50 50Vdc — —
0.050 - 50 120Vac (50/60Hz) — —
0.050 - 50 120Vac (400Hz) — —
0.050 - 50 250Vac (50/60Hz-400Hz) — —
Switch Only
50 amperes max. 65Vdc — — —
100 amperes max. 32Vdc — — —
50 amperes max. 250Vac (50/60Hz) — — —
50 amperes max. 250Vac (400Hz) — — —
Notes: DC units do not require series fusing.
277Vac: A circuit protector with this voltage rating is intended for 277Vac per pole single phase source only usage. (e.g.) If a two or three pole breaker is marked
277Vac, all line terminals must be connected to the same phase, assuming the 277Vac is taken from line to neutral of a three phase 277/480Vac system.
APL/UPL
Moisture Resistance
Designed to meet the requirements of MIL-PRF-55629 when
tested in accordance with Method 106 of MIL-Std-202.
Salt Spray (Corrosion)
Designed to meet the requirements of MIL-PRF-55629 when
tested in accordance with Method 101 of MIL-Std-202.
MPL Ratings
MPL protectors are UL (File No. E-41607) and CSA (File No.
LR-26229) recognized as manual, across the line starters, in
the following configurations and ratings. Consult factory for
further information.
Configurations
Series only with and without auxiliary switch.
Poles
One, two or three.
Shock
Withstands 100G or more without tripping while carrying full
rated current per MIL-Std-202, Method 213, Test Condition I.
Instantaneous types (delay 40, 50, 60 and 49, 59, 69) are
tested at 80% of rated current. Breakers mounted in the
handle down position are to be tested with no current applied
(per MIL-PRF-55629).
Vibration
Withstands 10G without tripping while carrying full rated
current per MIL-Std-202, Method 204, Test Condition A.
Instantaneous types (delay 40, 50, 60 and 49, 59, 69) are tested
at 80% of rated current.
MPL SPECIFICATIONS
APPROXIMATE WEIGHT PER POLE
Ounces Grams
3.7 103
RECOMMENDED TORQUE SPECIFICATIONS
Component Torque (in-lbs)
6-32 Mounting Inserts 6 to 8
M3 Mounting Screws 4 to 5
10-32 Screw Terminals 13 to 14
M5 Stud Terminals 13 to 14
1/4 - 20 Stud Terminals 25 to 30
Where applicable, mechanical support must be provide to the terminals when
applying torque
MPL - RATINGS
Current Ratings (Amps) Maximum Voltage Ratings Horsepower, Single Phase Ratings Three Phase (Note A)
0.050 - 50 65Vdc 1 —
0.050 - 50 120Vac (50/60Hz) 3 7.5
0.050 - 20 240Vac (50/60Hz) 3 5
0.050 - 20 277Vac (50/60Hz) 3 5
Note: AC units require maximum of 4X rated series fusing: DC units do not require series fusing.
A: Two or three poles breaking
APL/UPL
APL/UPL DECISION TABLES
How to Order
The ordering code for APL/UPL circuit protectors may be
determined by following the steps in the decision tables shown
here.
The coding given permits a self-assigning part number; other
configurations 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 assigned. Additionally,
it is a standard policy to establish a factory assigned part number
wherever a descriptive drawing exists to provide cross
reference, traceability and manufacturing control.
When specifying a protector 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 two pole UPL
protector with series trip, 20 ampere rating, 50/60Hz. short time
delay construction in all poles.
To determine the ordering number for your particular APL/UPL
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:
A The most common current values for 100% of rated current are
those listed. Please consult an Airpax office orsales representa-
tive for other values.
B All APL/UPL protectors are constructed with stainless steel
springs and plated parts. As noted in the specifications, all meet
normal requirements for moisture and salt spray resistance. If
fungus resistance is required in addition to moisture and salt
spray resistance, special procedures and markings are employed.
C Terminals will be supplied as #10-32 threaded studs up to 50
amperes. Above this amperage terminals will be ¼ -28 threaded
studs. All standard units will be supplied with a hex nut and two
flat washers on each threaded terminal.
D When metric threaded inserts are specified, breakers rated at
50 amperes and below will be supplied with metric threaded
terminals. For breakers rated above 50 amperes, ¼ -28 threaded
terminals will be supplied.
E Black handle standard.
UPL 11 - 1 - 61- 20 3
APL/UPL
