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Heyco® Straight-Thru Strain Relief Bushings For Flat Cables

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Heyco® Straight-Thru Strain Relief Bushings 
Heyco® Straight-Thru Strain Relief Bushings Component Program of Underwriters' LaboratoriesRecognized under the Component Program of Underwriters' Laboratories File #E-15331
Canadian Standards Association Certified by Canadian Standards Association File #LR-8919
 

For flat cables, with flex-protecting internal radii
 
Swipe
WILL FIT THESE CABLES CHASSIS DIMENSIONS   UL/CSA
Desc
 
UL TYPE
Designation
AWG
Conductors
Approx
Size
A
Mounting
Hole
B
To Prevent
Rotation
Maximum
Thickness
PART NO. D
Part
Length
in.   mm. in.    mm. in.   mm. in.    mm. Black White in.    mm.
SPT-1 18/3 .12x.30 3,0x7,6 .500  12,7 .465  11,8 .040 *  1,0 1181 1182 SR 4A-6 .546  13,9
SPT-2 & HPN 18/2 .15x.28 3,8x7,1
SAME AS SR 4A-6 ABOVE EXCEPT -----> .062  1,6 1187 1188 SR 4N-6
.100  2,5 1190 1191 SR 4K-6
Standard Color: Black. White and others available at extra charge (only in large quantities).
* To install Strain Reliefs for .040"(1,0 mm) maximum chassis thickness, use Part #0021 (No. R-291) Hand Plier


For flat cables, with flex-protecting internal radii
 
Swipe
WILL FIT THESE CABLES CHASSIS DIMENSIONS   UL/CSA
Desc
 
UL TYPE
Designation
AWG
Conductors
Approx
Size
A
Mounting
Hole
B
To Prevent
Rotation
Maximum
Thickness
PART NO. D
Part
Length
in.   mm. in.    mm. in.   mm. in.    mm. Black White in.    mm.
CLOCK 20/2 .09x.18 2,3x4,6 .375  9,5 .345  8,8 .062  1,6 1017 1018 SR 2P-4 .406  10,3
STP-1 18/2 .11x.21 2,8x5,3
SAME AS SR 3A-4 ABOVE EXCEPT -----> .125  3,2 1034 1035 SR 2L-1
SPT-1 18/2 .12x.22 3,0x5,6 .437  11,1 .390  9,9 .040*  1,0 1074 1075 SR 3A-4
SAME AS SR 3A-4 ABOVE EXCEPT -----> .062  1,6 1077 1078 SR 3P-4
.100 2,5 1104 1105 SR 3W-1
.156  4,0 1094 1095 SR 3L-1
SPT-1 18/2 .12x.22 3,0x5,6 .50  12,7 .445  11,3 .100  2,5 1130 1131 SR 4P-4 .453  11,5
SPT-1 18/3 .12x.30 3,0x7,6 .500  12,7 .465  11,8 .062  1,6 1120 1121 SR 4N-4 .406  10,3
HPN 18/2 .15x.28 3,8x7,1
SAME AS SR 4N-4 ABOVE EXCEPT -----> .100  2,5 1117 1118 SR 4K-4
.156  4,0 1127 1128 SR 4L-4
SPT-1 18/3 .12x.30 3,0x7,6 .500  12,7 .450  11,7 .095  2,4 1114 1115 SR 4K-1 .50  12,7
SPT-2 & HPN 18/2 .15x.28 3,8x7,1
HPN 18/3 .15x.34 3,8x8,6 .50-  12,7
.515  13,1
SPT-2 & HPN 16/2 .16x.30 4,1x7,6
SAME AS 4K-1 ABOVE EXCEPT -----> .187  4,7 1124 1125 SR 4L-1
SPT-3 18/2 .19x.35 4,8x8,9 562  14,3 .530  13,5 .062  13,5 1170 1171 SR 5KN-4 .609  15,5
16/2 .20x.37 5,1x9,4
SPT-2 18/3 .15x.40 3,8x10,2
16/3 .16x.41 4,1x10,4
SAME AS SR 5KN-4 ABOVE EXCEPT -----> .125  3,2 1167 1168 SR 5K-4
SPT-2 18/3 .15x.40 3,0x7,6 .625  15,9 .550  14,0 .062  1,6 1160 1161 SR 6N-4 .406  10,3
16/3 .16x.41 4,1x10,4
SAME AS 6N-4 ABOVE EXCEPT -----> .125  2,5 1163 1164 SR 6PN-4
Standard Nylon Fastener Color: Black. White and others available at extra charge (only in large quantities).
* To install Strain Reliefs for .040"(1,0 mm) maximum chassis thickness, use Part #0021 (No. R-291) Hand Plier
  • 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 chassis entry points.
  • New sizes for narrow .040" (1,0mm) chassis available:
                                                                SR 3A-4          
                                                                SR 4A-6
    See charts for details.
  • Standardize panel design!  Fill unneeded SR mounting holes with Heyco Double D Plugs, page 3-17.
  • Molded of type 6/6 nylon.  ASTM D-4066; flammability classification 94V-2; temperature index 125°C.  Maximum temperature on the part shall not exceed 105°C.
    (Click here to see our guide on choosing the best strain relief for your application.
Heyco® Straight-Thru Strain Relief Bushings
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