Curtis Industries
A Division of Powers Holdings, Inc.
www.curtisind.com 6SHci¿cDtionssuEMHcttocKDnJH.
Dimensions are shown for
reference purposes only.
Single Row
6
BARRIER STYLE
Series SE/SEI .250" (1/4") 6.35mm Center-to-Center Spacing
Features:
Miniature Feed-Thru, Printed Circuit and Surface
Connection – SE Series miniature terminal blocks are
designed for applications requiring the compactness and
versatility of the SEI Series without full feed-thru insulation.
Barrier-Type Construction – Blocks are made of high-
impact, break-resistant thermoplastic molding with integrally
mounted .116" diameter mounting holes. One thru 26
terminals on 1/4" center-to-center spacing.
Terminal Flexibility – External terminals available in two
No. 2-56 screw designs. Internal terminals include an .047"
diameter printed circuit pin, and turret-type solder pins.
Wire Sizes – No. 2-56 screws. UL recognized for No.
22AWG to No. 16AWG.
Recognition and Listing – UL recognized
Standoffs – SEPX and SEFX are now supplied with .020"
standoffs for ease in cleaning after soldering.
Recognized under the Components Program of
Underwriters Laboratories, Inc. Standard 1059,
Guide No. XCFR2, File No. E62557.
Guide No. 22.2 No. 158, Report No. LR39186-1.
Internal Terminal Designations
SEPX, SEIPX printed circuit board design with .047" tin-
plated brass pin
SEFX, SEIFX tin-plated brass turret-type solder pin
External Terminal Designations
SEPX, SEFX, No. 2-56 plated steel* terminal
SEIPX, SEIFX screw accepting up to No. 16
AWG wire
SEPCX, SEFCX, Nickel-plated brass surface
SEIPCX, SEIFCX clamp with No. 2-56 plated
steel screw to eliminate lugging. Accepts
wire up to No. 16AWG
VARIATIONS
SEPX
.047" dia.
printed
circuit pin,
external
screw
.1
5
1
(
3,84
)
SEIPX
.047" dia.
printed
circuit pin,
external
screw
.
1
67
(
4,24
)
SEPCX
external
clamp
added to
SEPX
SEIPCX
external
clamp
added to
SEIPX
.16
7
(
4,24
)
SEFX
turret-type
solder pin
external
screw
.198
(
5,03
)
SEIFX
turret-type
solder pin
external
screw
.198
(
5,03
)
SEFCX
external
clamp
added to
SEFX
SEIFCX
external
clamp
added to
SEIFX
.1
98
(
5,03
)
5
Ty
p
.
2-16
T
erminals
T
T
Ø
.064 (No. 52 Drill
)
17
T
erminals and Over
TT
Ø
.079
(
No. 47 Drill
)
PC BOARD DRILLING DIMENSIONS
Curtis Industries
A Division of Powers Holdings, Inc. 1-800-657-0853
Dimensions are in inches and millimeters
unless otherwise speci¿ed.
Values in parentheses are metric equivalents.
Single Row
7
BARRIER STYLE
SSeFi¿Fations:
Center-to-Center Spacing: .250" (6.35mm)
Wire Range: UL recognized for No. 22AWG to No. 16AWG.
Models SEIPX, SEIFX, SEPX and SEFX with standard No.
2-56 plated steel screws are UL recognized “for factory
wiring only.” Models SEPCX, SEFCX, SEIPCX and SEIFCX
are UL recognized “for ¿eld wiring” when ordered with
special No. 2-56 stainless steel screw.
No. of Terminals: 1 thru 26
Voltage Rating: UL & CSA – 150 volts – General Industrial
250 volts – Commercial
Appliance
Tightening Torque: Wire Clamp with stainless steel screw 3
in.-lbs.
Current Rating: 5 amps UL
Housing:
Material Polyphenylene Oxide
Continuous Use
Temp. (UL Index) 110° C (230° F)
Flammability Rating 94V-0
Water Absorption
(24 hrs. % wt. gain) .06%
Chemical Resistance Resistant to inorganic bases and
acids – for organic substances
contact factory for speci¿c
resistances.
Breakdown Voltage:
Terminal - Terminal 3,600 Typ.
Terminal - Ground 4,700 Typ.
How to Order
SEI and SE Series terminal blocks are ordered by listing a
composite number made up of the model designation followed
by the number of poles required for the application.
Suffixes are used as follows:
R denotes model less mounting positions
* The SEPX and SEFX are made with .020" standoffs for ease
in cleaning after the soldering operation
Series SE/SEI Dimensions
Dimensions shown are ± 0.030"
“A” O.D.
“B” M.D.
“C” Less End Mountings
.145 Max. Lug Access
(3,68)
.116
.120 Dia. Hole Both Ends
Recommended MTG Screws
No. 2 BD. or PAN HD
No. 3 MAX RD HD
No. 4 MAX. FIL. HD
.192 Max. Lug Width
(4,87)
.250 Typ.
(6,35)
.531
(13,48)
NOTE: mm dim. are shown in parentheses
.437
(11,11)
.250
(6,35)
.171 Dia.
(4,34)
.890
(22,62)
Series SE/SEI With
Mounting Ends
Without
Mounting
Ends
Number
of
Terminals
Dimensions
A ± .031 Overall
Dimensions
(O.D.)
B ± .031 Mounting
Dimensions
(M.D.)
C ± .031
Less Mounting
Positions
Inches Metric
(mm) Inches Metric
(mm) Inches Metric
(mm)
1.781 19.84 .500 12.70 .375 9.52
21.031 26.19 .750 19.05 .625 15.87
31.281 32.54 1.000 25.40 .875 22.22
41.531 38.89 1.250 31.75 1.125 28.57
51.781 45.24 1.500 38.10 1.375 34.92
62.031 51.59 1.750 44.45 1.625 41.27
72.281 57.94 2.000 50.80 1.875 47.62
82.531 64.29 2.250 57.15 2.125 53.97
92.781 70.64 2.500 63.50 2.375 60.32
10 3.031 76.99 2.750 69.85 2.625 66.67
11 3.281 83.34 3.000 76.20 2.875 73.02
12 3.531 89.69 3.250 82.55 3.125 79.37
13 3.781 96.04 3.500 88.90 3.375 85.72
14 4.031 102.39 3.750 95.25 3.625 92.07
15 4.281 108.74 4.000 101.60 3.875 98.42
16 4.531 115.09 4.250 107.95 4.125 104.77
17 4.781 121.44 4.500 114.30 4.375 111.12
18 5.031 127.79 4.750 120.65 4.625 117.47
19 5.281 134.14 5.000 127.00 4.875 123.82
20 5.531 140.49 5.250 133.35 5.125 130.17
21 5.781 146.84 5.500 139.70 5.375 136.52
22 6.031 153.19 5.750 146.05 5.625 142.87
23 6.281 159.54 6.000 152.40 5.875 149.22
24 6.531 165.89 6.250 158.75 6.125 155.57
25 6.781 172.24 6.500 165.10 6.375 161.92
26 7.031 178.59 6.750 171.45 6.625 168.27