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“Stay Connected” with Strain Relief Bushings ® Heyco Original Strain Relief Bushings ® Straight-Thru for Round Cables .375˝ (9,5 mm) to .500˝ (12,7 mm) Mounting Holes • Protects the lifeline of your electric/electronic products by absorbing the forces of pull, push, and twist that maybe exerted on the flexible power cord. • Securely anchors, insulates, and protects cables at panel entry points. • Sizes SR 2-Series to SR 6-Series for mounting hole diameters from .375˝ (9,5 mm) to .500˝ (12,7 mm). • See page 4-38 for corresponding Mounting Hole Plugs which can be used to fill blank/unused Mounting Holes and thus allow for a single panel design for multiple applications. • See pages 4-27 & 4-28 for SR assembly tools. • See schematic on page 4-20. • For Double D Mounting Hole Punches, see page 4-30. Position on Wire WILL FIT THESE CABLES UL Type AWG/ Conductors AWM 12/1 SV & SVT 18/2 PANEL DIMENSIONS Approximate Size in. mm. .125.187 3,24,8 A Mounting Hole Dia. in. mm. 9,5 .330 8,4 .062 1,6 1060 SR 2M-1 .406 10,3 2617 .500 12,7 .450 11,4 .062 1,6 1157 SR 5MN-3 .438 11,1 2491 .100 2,5 1140 SR 5M-3 .438 11,1 2491 6,4 6,7 .560 .560 14,2 14,2 .730 .730 18,5 .125 18,5 .125 3,2 3,2 1487 1490 SR 30-1A** SR 30-1B** .672 17,1 consult Heyco .450 11,4 .062 1,6 1150 SR 5N-4 .438 11,1 2491 .100 .156 2,5 4,0 1147 1154 SR 5P-4 SR 5L-1 .438 11,1 .438 11,1 consult Heyco .220- 5,6- .245 6,2 SV & SVT .250 .265 18/2 .250 6,4 .500 12,7 18/3 .255 6,5 .500.515 12,713,1 18/2 .270 6,9 .500 12,7 12,713,1 13,5 HPD SJT C Hole Plug BODY LENGTH in. mm. PART NO. Black .375 Same as SR 5MN-3 above except For custom interlock cable, not UR PART NO. DESCRIPTION PART DIM. Mounting B Finished To Prevent Fit Panel Rotation Thickness* in. mm. in. mm. 16/2 .290 7,4 .500.515 18/2 .300 7,6 .531 Same as SR 5N-4 above except SV & SVT 18/2 18/3 .255 .270 6,5 6,9 HPD 18/2 .290 7,4 SJ, SJT & SJO 18/2 .300 7,6 SPT-3 16/2 2491 .500 12,7 .450 11,4 .100 2,5 1137 SR 5P3-4 .438 11,1 2491 .500 12,7 .465 11,8 .090 2,3 1184 SR 6W-1 .438 11,1 2491 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. Squeeze Pliers Push into Hole Quick Specs 4-19 Material Certifications Flammability Rating Temperature Range Nylon 6/6 Recognized under the Component Program of Underwriters’ Laboratories File E15331 Certified by the Canadian Standards Association File 8919 94V-2 -.04°F (-18°C) to 221°F (105°C) 1-800-526-4182 • 732-286-1800 (NJ) • FAX: 732-244-8843 • www.heyco.com