Leviton
Leviton Locking Plug
This Leviton collection currently holds one product: the Leviton 2411 locking plug, an industrial grade 20 amp, 125/250 volt plug. A locking plug twists into a matching locking receptacle so the connection cannot pull loose under load. It is used on generators, temporary power, and equipment cords. Leviton warranties vary by product line, from limited 1-year terms to a limited lifetime warranty, so check the product's documentation for its term.
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Leviton FAQ
Will a locking plug fit a standard outlet?
No. A locking plug has curved blades that only fit a locking receptacle of the same rating and configuration. Match the plug to the receptacle on your generator or equipment before you wire the cord.