Heyco Products, Inc. “ T h e F i r s t N a m e i n W i r e P r o t e c t i o n ” 3-11 1-800-526-4182 • 732-286-1800 (NJ) • FAX: 732-244-8843 • Web site: www.heyco.com Heyco® Straight-Thru Strain Relief Bushings For Flat Cables, With Flex-Protecting Internal Radii and Extra Body Length WILL FIT THESE CABLES PANEL DIMENSIONS PART NO. DESCRIPTION C UL Type AWG/ Approximate A B Maximum BODY Designation Conductors Size Mounting To Prevent Panel Black LENGTH Hole Dia. Rotation Thickness in. mm. in. mm. in. mm. in. mm. in. mm. SPT-1 18/3 .12x.30 3,0x7,6 SPT-2 18/2 .15x .28 3,8x7,1 .500 12,7 .465 11,8 .040* 1,0 1181 SR 4A-6 .546 13,9 & HPN Same as SR-4A-6 above except .062 1,6 1187 SR 4N-6 .546 13,9 Same as SR-4A-6 above except .100 2,5 1190 SR 4K-6 .546 13,9 Standard colors black. Consult Heyco for white and other colors. For Flat Cables WILL FIT THESE CABLES PANEL DIMENSIONS PART NO. DESCRIPTION C UL Type AWG/ Approximate A B Maximum BODY Designation Conductors Size Mounting To Prevent Panel Black LENGTH Hole Dia. Rotation Thickness in. mm. in. mm. in. mm. in. mm. in. mm. CLOCK 20/2 .09x.18 2,3x4,6 .375 9,5 .345 8,8 .062 1,6 1017 SR 2P-4 .406 10,3 SPT-1 18/2 .11x.21 2,8x5,3 Same as SR 2P-4 above except .125 3,2 1034 SR 2L-1 .406 10,3 SPT-1 18/2 .12x.22 3,0x5,6 .437 11,1 .390 9,9 .040* 1,0 1074 SR 3A-4 .406 10,3 .062 1,6 1077 SR 3P-4 Same as SR 3A-4 above except .100 2,5 1104 SR 3W-1 .406 10,3 .156 4,0 1094 SR 3L-1 SPT-1 18/2 .12x.22 3,0x5,6 .500 12,7 .445 11,3 .100 2,5 1130 SR 4P-4 .440 11,2 SPT-1 18/3 .12x.30 3,0x7,6 .406 10,3 HPN 18/2 .15x.28 3,8x7,1 .500 12,7 .465 11,8 .062 1,6 1120 SR 4N-4 Same as SR 4N-4 above except .100 2,5 1117 SR 4K-4 .406 10,3 .156 4,0 1127 SR 4L-4 .406 10,3 SPT-1 18/3 .12x.30 3,0x7,6 SPT-2 .500 12,7 & HPN 18/2 .15x.28 3,8x7,1 .460 11,7 .095 2,4 1114 SR 4K-1 .500 12,7 HPN 18/3 .15x.34 3,8x8,6 .500- 12,7- SPT-2 .515 13,1 16/2 .16x.30 4,1x7,6 & HPN Same as SR 4K-1 above except .187 4,7 1124 SR 4L-1 .500 12,7 SPT-3 18/2 .19x.35 4,8x8,9 16/2 .20x.37 5,1x9,4 SPT-2 18/3 .15x.40 3,8x10,2 .562 14,3 .530 13,5 .062 1,6 1170 SR 5KN-4 .609 15,5 16/3 .16x.41 4,1x10,4 Same as SR 5KN-4 above except .125 3,2 1167 SR 5K-4 .609 15,5 Standard color black. Consult Heyco for white and other colors. • Sizes for thin .040½ (1,0 mm) panel available: SR 4A-6 & SR 3A-4. See charts for details. • 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 cable at panel entry points. • Standardize panel design! Fill unused SR mounting holes with Heyco Double “D” Plugs, page 3-23. • See page 3-24, 3-25, and 3-26 for SR hole punches and assembly tools. • See page 3-12 for Quick Specs. A2 r= B A MOUNTING HOLE C *To install strain reliefs for .040½ (1,0 mm) maximum panel thickness, use Part #0021 (No. R-291) Hand Pliers.