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Heyco® Original Strain Relief Bushings

Right Angle for Flat Cables

  • Part Numbers and Specifications
  • Features
WILL FIT THESE CABLES PANEL DIMENSIONS PART NO. DESC. PART DIMENSIONS Mounting
Hole
Plug
CAD
UL
Type
AWG/
Conductors
Approximate
Size
A
Mounting
Hole Dia.
B
To Prevent
Rotation
Finished
Fit Panel
Thickness*
Black C
HEAD
LENGTH
D
BODY
LENGTH
in. mm. in. mm. in. mm. in. mm. in. mm. in. mm. PART NO.
SPT-1 18/2 .12x.22 3,0x5,6 .437 11,1 .390 9,9 .062 1,6 1354 SR 13-1 .234 5,9 .500 12,7 2488 CAD
SPT-1 18/3 .12x.30 3,0x7,6 .500 12,7 .450 11,4 .040 1,0 1361 SR 14A-1 .390 9,9 .687 17,5 2491 CAD
SPT-2
HPN
18/2 .15x.28 3,8x7,1
16/2 .16x.30 4,1x7,6
Same as SR 14A-1 above except ––––––––––––––––––––––––––––––––––––––––––>
.100 2,5 1364 SR 14-1 .390 9,9 .687 17,5 2491 CAD
SPT-2
& HPN
18/3 .15x.40 3,8x10,2 .562 14,3 .525 13,3 .125 3,2 1384 SR 16-1 .500 12,7 .859 21,8 2494 CAD
SPT-3
& HPN
18/2 .19x.35 4,8x8,9
16/2 .20x.37 5,1x9,4
HPN 16/3 .16x.37 4,1x9,4
SPT-2 18/3 .15x.40 3,8x10,2 .560** 14,2** .730** 18,5** .080 2,0 1424 SR 20-1** .406 10,3 .812 20,6 consult Heyco CAD
16/3 .16x.41 4,1x10,4
SPT-3 18/2 .19x.35 4,8x8,9
18/3 .19x.39 4,8x9,9
16/2 .20x.37 5,1x9,4
16/3 .20x.43 5,1x10,9
Same as SR 20-1 above except ––––––––––––––––––––––––––––––––––––––––––>
.125 3,2 1434 SR 20L-1** .406 10,3 .812 20,6 consult Heyco CAD
SPT-3 16/2 .20x.37 5,1x9,4 .750** 19,9** .875** 22,2 ** .125 3,2 1454 SR 23-1** .484 12,3 .937 23,8 consult Heyco CAD
16/3 .20x.43 5,1x10,9
14/2 .24x.42 6,1x10,7
14/3 .24x.51 6,1x13,0
Fit 1/2" and 3/4" Electrical Knock-out Hole Sizes
SPT-3 14/2 .24x.42 6,1x10,7 .875 22,2 .840 21,3 .125 3,2 1464 SR 24-1 .500 12,7 .968 24,6 2509 CAD
14/3 .24x.51 6,1x13,0
12/3 .29x.51 7,4x13,0
12/3 .29x.65 7,4x16,5
SPT-3,
SRD &
SRDT
10/3 .32x.66 8,0x16,8 1.093 28,0 1.000 25,4 .125 3,2 1440 SR 21-2 .734 18,6 1.437 36,5 2717  

Standard color black. Consult Heyco for white and other colors.
*Maximum Panel Thickness. Part has additional clearance. Consult Heyco for your Custom Finished Fit Panel Thickness.
**Use Elongated Mounting Hole.

  • Provides the same protection for your power supply cable as the straight-thru type AND...
  • Exits the cable flush against the panel, saving space and directing the cable parallel to the panel.
  • Overcomes space limitations and acts as a back or bottom bumper.
  • Corresponding Mounting Hole Plugs can be used to fill blank/unused Mounting Holes and thus allow for a single panel design for multiple applications.
  • Consult Heyco for other wire types and sizes.
  • SR assembly tools.
  • For Double D Mounting Hole Punches, click here.

QuickSpecs

Material   Nylon 6/6
Certifications ru Recognized under the Component Program of Underwriters' Laboratories File E15331
csa Certified by the Canadian Standards Association File 8919
Flammability Rating   94V-2
Temperature Range   -.04°F (-18°C) to 221°F (105°C)
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