“Stay Connected” with Strain Relief Bushings ® Heyco® Original Strain Relief Bushings Straight-Thru for Flat Cables .375˝ (9,5 mm) to .500˝ (12,7 mm) Mounting Holes •Protects the lifeline of your electric/ WILL FIT THESE CABLES PANEL DIMENSIONS PART NO. DESCRIPTION PART DIM. Mounting electronic productsby absorbing the UL Type AWG/ Approximate A B Finished C Hole Plug forces of pull, push, and twist that may Conductors Size Mounting To Prevent Fit Panel Black BODY be exerted on the flexible power cord. Hole Dia. Rotation Thickness* LENGTH in. mm. in. mm. in. mm. in. mm. in. mm. PART NO. •Securely anchors, insulates, and 20/2 protects cable at panel entry points. 300 OHM(cid:0) .06 x .40 1,5 x 10,2 .375 9,5 22/2 •Sizes for thin .040˝ (1,0 mm) 18/2 .375 9,5 SPT-1 .12 x .30 3,0 x 7,6 panel available: SR 4A-6 & SR 3A-4. 18/3 .390 9,9 .625- 15,9- See charts for details. 18/2 .415 10,5 .640 16,3 .100 2,5 1814 SR 302-1** .469 11,9 consult Heyco .15 x .40 3,8 x 10,2 18/3 .422 10,7 • See page 4-38 for corresponding SPT-2 Mounting Hole Plugswhich can be 16/2 .16 x .41 4,1 x 10,4 .422 10,7 16/3 .437 11,1 used to fill blank/unused Mounting Holes and thus allow for a single panel Same as SR 302-1 above except .156 4,0 1804 SR 300-1 .469 11,9 consult Heyco CLOCK, design for multiple applications. 20/2 .09 x .18 2,3 x 4,6 X & XT .375 9,5 .345 8,8 .062 1,6 1017 SR 2P-4 .406 10,3 2617 • Consult Heyco for other wire types SPT-1 18/2 .11 x .21 2,8 x 5,3 and sizes. Same as SR 2P-4 above except .125 3,2 1034 SR 2L-1 .406 10,3 2617 • See pages 4-27 & 4-28 for SR .040 SPT-1 18/2 .12 x .22 3,0 x 5,6 .437 11,1 .390 9,9 1,0 1074 SR 3A-4 .406 10,3 2488 assembly tools. *** .062 1,6 1077 SR 3P-4 •For Double D Mounting Hole Punches, .406 10,3 2488 Same as SR 3A-4 above except .100 2,5 1104 SR 3W-1 see page 4-30. .156 4,0 1094 SR 3L-1 .406 10,3 consult Heyco SPT-1, SPT-2 18/2 .12 x .22 3,0 x 5,6 .500 12,7 .445 11,3 .100 2,5 1130 SR 4P-4 .440 11,2 2491 B & HPN SPT-1 18/3 .12 x .30 3,0 x 7,6 SPT-2 .500 12,7 .445 11,3 .062 1,6 1120 SR 4N-4 .406 10,3 2491 18/2 .15 x .28 3,8 x 7,1 A & HPN .100 2,5 1117 SR 4K-4 .406 10,3 2491 Same as SR 4N-4 above except .156 4,0 1127 SR 4L-4 .406 10,3 consult Heyco MOUNTING HOLE C SPT-1 18/3 .12 x .30 3,0 x 7,6 SPT-2 .500 12,7 18/2 .15 x .28 3,8 x 7,1 & HPN .460 11,7 .095 2,4 1114 SR 4K-1 .500 12,7 2491 HPN 18/3 .15 x .34 3,8 x 8,6 .500- 12,7- SPT-2 16/2 .16 x .30 4,1 x 7,6 .515 13,1 HPN Same as SR 4K-1 above except .187 4,7 1124 SR 4L-1 .500 12,7 consult Heyco Standard color black. Consult Heyco for white and other colors. (cid:0)Wire is not UL/CSA approved. *Maximum Panel Thickness. Part has additional clearance. Consult Heyco for your Custom Finished Fit Panel Thickness. **Use Elongated Mounting Hole. C ***To install Strain Reliefs for .040˝ (1,0 mm) Maximum Panel Thickness use Part No. 0021(No. R 291) Hand Pliers. Material Nylon 6/6 Certifications Recognized under the Component Program of Underwriters’ Laboratories File E15331 *To install strain reliefs for .040˝ (1,0 mm) Certified by the Canadian Standards Association File 8919 maximum panel thickness, use Part #0021(No. R 291) Hand Pliers. Flammability Rating 94V-2 Temperature Range -.04°F (-18°C) to 221°F (105°C) 4-17 1-800-526-4182 • 732-286-1800 (NJ) • FAX: 732-244-8843 • www.heyco.com

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