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Heyco® Right Angle Strain Relief Bushings
For Flat Cables		 Features
  • Provides the same protection for your power supply cable as the straight-thru type AND...
  • Exits the cable flush against the chassis, saving space and directing the cable parallel to the panel.
  • Overcomes space limitations and acts as a back or bottom bumper.
  • Standardize panel design! Fill unneeded SR mounting holes with Heyco Double “D” Plugs.
  • SR hole punches and assembly tools.
Material 6/6 Nylon
Certifications Recognized under the Component Program of Underwriters’ Laboratories File E15331
Certified by the Canadian Standards Association File LR8919
Flammability 94V-2
Temperature 257°F (125°C)–Maximum temperature on part not to exceed 221°F (105°C)
Heyco® Right Angle Strain Relief Bushings
For Flat Cables		 Specifications
WILL FIT THESE CABLES
PANEL DIMENSIONS
Part NO.
Black
 Descr. C
Head
Length		 D
Body
Length		 CAD
UL Type Design. AWG /Cond. Approx.
Size
A
Mount.
Hole Dia.
B
Prevent
Rotation
 Max.
Panel
Thickness
in. mm.
in.
mm.
in.
mm.
 in. mm. in. mm. in. mm.
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
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
SPT-2
HPN		 18/2
16/2		 .15x.28 .16x.30 3,8x7,1
4,1x7,6
Same as SR 14A-1 above except .100 2,5 1364 SR 14-1 .390 9,9 .687 17,5
SPT-2 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
SPT-3 18/2
16/2		 .19x.35 .20x.37 4,8x8,9
5,1x9,4
HPN 16/3 .16x.37 4,1x9,4
SPT-2 18/3
16/3		 .15x.40 .16x.41 3,8x10,2 4,1x10,4 .560
**		 14,2
**		 .730
**		 18,5
**		 .080 2,0 1424 SR 20-1
**		 .406 10,3 .812 20,6
SPT-3 18/2
18/3
16/2
16/3		 .19x.35 .19x.39 .20x.37 .20x.43 4,8x8,9
4,8x8,9
5,1x9,4 5,1x10,9
Same as SR 20-1 above except .125 3,2 1434 SR 20L-1
**		 .406 10,3 .812 20,6
SPT-3 16/2
16/3
14/2
14/3		 .20x.37 .20x.43 .24x.42 .24x.51
 5,1x9,4 5,1x10,9 6,1x10,7 6,1x13,0 .750
**		 19,9
**		 .875
**		 22,2
**		 .125 3,2 1454 SR 23-1
**		 .484 12,3 .937 23,8
SPT-3 14/2
14/3
12/2
12/3		 .24x.42 .24x.51 .29x.51 .29x.65 6,1x10,7 6,1x13,0 7,4x13,0 7,4x16,5 .875 22,2 .840 21,3 .125 3,2 1464 SR 24-1 .500 12,7 .968 24,6
SPT-3 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

Standard color black. Consult Heyco for white and other colors.
**Use elongated hole.
1Maximum Panel Thickness–Part has additional clearance.



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