Corrosion resistant Turnlock locking device|Non-NEMA rating|Chemical and impact resistant nylon housing features horizontal, easy grip ribs on back body|Clear, high-impact-resistant thermoplastic terminal chamber for clear view of connection|Exclusive, rugged integral cord-grip accepts a wide range of cord widths, no external parts to snag or break OFF|NEMA configurations always visible for fast without disconnecting|Industrial-strength, brass alloy plug blades and connector contacts resist heat rise, provide excellent conductivity|Comes disassembled and ready-to-wire for quick installation|Tri-drive assembly screws conveniently accept slotted, Phillips and Robertson screwdrivers|Double-wipe power contacts withstand work-site abuse and ensure lasting blade retention