Heyco Products, Inc.
“The First Name in Wire Protection”
Heyco
®
Straight-Thru
Strain Relief Bushings
For Round Cables
WILL FIT THESE CABLES
PANEL DIMENSIONS
PART NO.
DESCRIPTION
C
UL Type
AWG/
Approximate
A
B
Maximum
Body
Designation Conductors
Diameter
Mounting To Prevent
Panel
Black White
Length
Hole Dia.
Rotation Thickness
1
in. mm. in. mm. in. mm. in. mm.
in.
mm.
16/2
.325 8,3
18/3
.330 8,4
SJ, SJT
14/2
.350 8,9
& SJO
16/3
.355 9,0
18/4
.360 9,1
Same as SR 7K-2 above except
18/4
.360 9,1
SJT
14/3
.370 9,4
18/2
.390 9,9
18/3
.405 10,3
S & ST
16/2
.405 10,3
16/3
.430 10,9
.875 22,2 .770 19,6 .125
3,2
1240 1241
SR 7K-2
.750 19,1
See Schematic
1271 1272
SR 7KR-2 .750 19,1
.750 19,0
.660 16,8 .062
.750- 19,0-
.781 19,8
3,2
1237 1238
SR 7P-2
.750 19,1
1,6
1244 1245
SR 7N-2
.750 19,1
Same as SR 7N-2 above except
.125
14/3
.370 9,4
SJT
12/3
.425 10,8
18/2
.390 9,9
.875 22,2 .770 19,6 .125
18/3
.405 10,3
S & ST
16/2
.405 10,3
16/3
.430 10,9
Same as SR 7W-2 above except
.200
.425- 10,8-
SJT
12/3
.475 12,1 .875 22,2 .840 21,3 .125
14/2
.530 13,5
S & ST
14/3
.560 14,2 .875 22,2 .840 21,3 .062
12/2
.600 15,3
.125
Same as SR 8N-2 above except
.187
12/2
.600 15,2 1.093 27,7
S
12/3
.635 16,1 1.125 28,6
10/2
.640 16,3 1.093 27,7 1.000 25,4 .281
S, ST
10/3 .690 17,5 1.187 28,6
& SO
1
Maximum
3,2
1247 1248
SR7W-2
.750 19,1
5,1
1250 1251
3,2
1497 1498
1,6
1254 1255
3,2
1260 1261
4,8
1274 1275
SR 7L-2
SR 31-2
SR 8N-2
SR 8P-2
SR 8L-1
.750 19,1
.812 20,6
.828 21,0
•
Protects the lifeline of your electric/
electronic products by absorbing the
forces of pull, push, and twist that may
be exerted on the flexible power cord.
•
Securely anchors, insulates, and
protects cables at panel entry points.
•
Sizes SR7 to SR9 for mounting
hole diameters from .750 in
to 1.187 in.
•
Standardized design! Fill
unneeded SR mounting holes
with Heyco Double D Holes.
•
Sizes for narrow .062˝ (1,6mm)
panel available:
SR 7N-2
SR 8N-2
See chart for details.
See pages 2-24, 2-25, and 2-26 for
assembly tools and SR hole punches.
LabKit No. 1 (Part #1999)
Provides a working assortment for
prototype and laboratory use. 180
assorted Heyco Strain Reliefs are
identified in a handy compartmentalized
plastic box. Ideal for design engineering
groups. Details on page 2-27.
•
See page 2-11 for Quick Specs.
.812 20,6
7,1
1287 1288
SR 9P-2
1.00 25,4
Standard Colors: Black or White. Consult factory for color matching, prices, and minimum order quantities.
Panel Thickness–Part has additional clearance.
B
B
A
.956
A
r= A
2
.255
FOR SR-7KR-2 ONLY
r= A
2
STANDARD MOUNTING HOLES
C
1-800-526-4182 • 732-286-1800 (NJ) • FAX: 732-244-8843 • Web site: www.heyco.com
2-12