Prevent accidental power interruptions with this black/white locking plug from Hubbell Wiring Device-Kellems. This locking plug has a L6-20P configuration with a voltage of 250VAC and an amperage of 20. It has 2 poles and 3 wires. It is made of nylon material. This has a grade of industrial. It has 1 phase. Standards include: FED SPEC UL/CSA.