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Text version of the page
| é | Rigid and Intermediate Metal Conduit Fittings Locknuts | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ■is | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 140 Series 141AL Series | 106 Series | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Standard Material 140 Series & 106 Series %" thru 2" steel (hardened) 252" thru 6" Malleable Iron All screws steel 141AL Series All copper-free aluminum Standard Finish All steel and malleable iron locknuts, including electro zinc-plated bonding screws and chromate coated all-aluminum locknut, degreased Range %" through 6" conduit (All threads straight pipe [NPS]) (140 Series) 52" through 4" conduit (106 Series & 141AL Series) Listed/Certified by UL (UL File No. E-23018) CSA [catalog numbers 108,109,110 and 111. All 140 Series except catalog number 140.] (LR-2884, LR-4484) Conforms to UL 514B CSA C22.2 No. 18 NEMA FB1 NFPA 70 Federal Specification replaced by A-A-50553 Federal Standard H-28 (Threads) Case Hardened Locknuts Case hardened locknuts make fittings faster and easier to install. Case hardened locknuts do not slip or turn, thereby protecting the biting edge. Case hardened locknuts bite through paint into the enclosure, providing excellent continuity of ground (typical T&B/Thomas & Betts fitting with case hardened locknuts successfully passed minimum fault current of 10,000 amps RMS). Case hardened locknuts, when assembled in the intended manner, will not vibrate loose, thereby ensuring excellent ground continuity. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Application • To connect externally threaded conduit or connector to a threadless opening in a box or enclosure • To effectively bond conduit or connector to box or enclosure Features • Hardened steel/malleable iron/copper-free aluminum construction • Tightens without deformation • Locknuts specially designed to: (i) Provide extended reach for clamping on thin boxes and enclosures (ii) Cut through protective coating on box and enclosure, thereby ensuring ground continuity (iii) Permit tightening from outside (iv) Prevent loosening under vibration • 106 Series provided with a hardened cone point screw | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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