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The LEGRAND 28W74 is a 30-amp, 125/250-volt Turnlok locking plug designed for secure, twist-lock electrical connections in demanding service environments. The locking blade design prevents accidental disconnection under load, making it a reliable choice for temporary power distribution, generator hookups, and industrial wiring applications. Licensed electricians and electrical contractors install this plug where a standard straight-blade connection is not adequate for the application. At 30 amps and 125/250 volts, it handles common single-phase loads across a range of residential and light commercial setups.
The 28W74 is suited for use in generator outlet connections, RV service pedestals, compressor circuits, and similar 30-amp single-phase applications requiring a twist-lock mechanical retention. It is intended for use where NEMA locking configurations are specified and where vibration or movement could otherwise loosen a conventional plug connection.
Designed as an OEM-style locking plug for use in 30-amp, 125/250-volt NEMA locking configurations typical of residential and light commercial electrical installations.
Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize the circuit and verify voltage is absent with a meter before wiring the plug. Follow the terminal markings inside the plug body for correct wire termination. Do not exceed the 30-amp rated circuit ampacity.
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