Legrand PS420P9-W Locking Plug 20A 3-phase 250V

Product Description

The LEGRAND PS420P9-W is a 4-wire locking plug rated for 20 amps at 250 volts on a 3-phase circuit. This industrial-grade connector is designed for use in commercial and light industrial electrical systems where secure, twist-lock connections are required. The locking body style prevents accidental disconnection under load, making it a reliable choice for temporary power distribution, equipment connections, and generator hookups. Licensed electricians install this fitting as part of a compliant wiring assembly. It weighs 0.6 pounds and carries a UPC of 78500742032.

This plug is suited for 3-phase, 250-volt applications in commercial buildings, industrial facilities, and job-site power setups. The 4-wire configuration supports grounded 3-phase circuits, which are common in motor-driven equipment, HVAC compressor systems, and heavy electrical loads. It is typically paired with a matching locking receptacle to complete a secure connection point.

Key Features

• 20-amp, 250-volt rating for 3-phase circuits
• 4-wire construction supports grounded 3-phase wiring configurations
• Twist-lock body prevents accidental pull-out under load
• Compact form factor at 0.6 pounds for easy handling and installation
• Suitable for commercial and light industrial power distribution

Compatibility

Designed as an OEM-style locking plug for use with compatible 20-amp, 3-phase, 250-volt locking receptacles in commercial and industrial wiring systems.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the circuit before wiring the plug body. Ensure conductor sizing matches the 20-amp rating and that the grounding conductor is properly terminated. Do not exceed the rated voltage or amperage of the device.

Technical Specifications

• Amperage: 20 amps
• Voltage: 250 volts
• Phase: 3-phase
• Number of Wires: 4
• Weight: 0.6 pounds
• UPC: 78500742032

Standard Information

• Brand: LEGRAND
• Manufacturer Part Number: PS420P9-W