Leviton Telcom 78W49-C Locking Connector L7-30 30A 277V

Product Description

The LEVITON TELCOM 78W49-C is a yellow wire guard locking connector rated for the L7-30 configuration at 30 amps and 277 volts. This device is a twist-lock style electrical connector designed to provide a secure, vibration-resistant connection in demanding single-phase wiring applications. The yellow color coding identifies it within the standard ANSI/NEMA color convention for 277-volt devices. Electricians and electrical contractors install this connector where a reliable locking interface is required at the outlet or cord end in commercial and industrial environments.

This connector is suited for commercial lighting circuits, industrial equipment feeds, and other single-phase 277-volt applications where the L7-30 locking configuration is specified. The wire guard construction helps protect the cable entry point from mechanical stress and strain at the connection point. It is typically used in facilities wiring, manufacturing environments, and commercial building electrical systems that operate on 277-volt branch circuits.

Key Features

• L7-30 twist-lock configuration for secure, vibration-resistant connections
• Rated 30 amps at 277 volts for single-phase commercial and industrial circuits
• Yellow housing for ANSI-standard 277-volt color identification
• Wire guard design provides mechanical strain relief at cable entry
• Sold individually (one unit per package)

Compatibility

Designed as an OEM-style replacement or direct-install connector for L7-30 rated locking connector applications on 277-volt single-phase circuits.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements for locking-type connectors. De-energize and lock out the branch circuit before any wiring work on the connector. Ensure conductors are properly stripped, seated, and torqued to terminal screws per the device markings. Verify the cord or cable gauge is compatible with the 30-amp rating before assembly.