Hubbell Parts
Harvey Hubbell founded Hubbell in Bridgeport, Connecticut, in 1888. His son Harvey Hubbell III invented the twist-locking connector in 1938, and Twist-Lock is still a Hubbell trademark.
The Hubbell parts here are industrial power connectors: Twist-Lock plugs for three-phase circuits, and Twist-Lock and heavy-duty connector bodies.
How to read one: NEMA locking configurations start with L, and P is a plug and R a receptacle. L21-30P is a 30 A plug for 120/208 V three-phase wye with neutral and ground, and L22-20P is a 20 A plug for 277/480 V three-phase wye with neutral and ground. The plug and the receptacle must carry the same configuration to mate.
Browse Connectors & Sockets and Hardware & Supplies. See also AMP and Amphenol.
Ships same or next business day from our Idaho warehouse. Online since 1999.
