Leviton 16R22-UW 400A 600V Panel Receptacle Nema 3R

Product Description

The LEVITON 16R22-UW is a female panel receptacle rated for 400 amps and 600 volts, designed for heavy-duty power distribution applications. It accepts wire sizes from 1/0 to 4/0 AWG using a double set screw termination method, providing a secure, vibration-resistant connection. The NEMA 3R rating means the enclosure is suitable for outdoor use, offering protection against rain, sleet, and ice. At 4.81 inches in overall length and 0.8 pounds, this receptacle is built for panel-mounted installations where high-amperage feed connections are required. Electricians and electrical contractors install this type of component during service entrance work, temporary power setups, and industrial panel builds.

This panel receptacle is suited for commercial and industrial electrical systems where high-amperage, outdoor-rated connections are necessary. Typical applications include main distribution panels, temporary power distribution equipment, and generator connection points exposed to weather. The double set screw termination accommodates large-gauge conductors from 1/0 to 4/0 AWG, making it appropriate for feeder and service entrance wiring where secure conductor retention is critical. The white finish and female end style are consistent with standard panel receptacle conventions used in both new construction and retrofit electrical projects.

Key Features

• 400 amp continuous rating supports heavy feeder and service entrance loads
• 600 volt rating suitable for standard commercial and industrial distribution voltages
• Double set screw termination secures 1/0 to 4/0 AWG conductors without crimping tools
• NEMA 3R rating provides outdoor protection against rain, sleet, and ice formation
• UL Listed (File E151429) and CSA certified to LR 76878-4 for verified safety compliance
• Female panel-mount configuration for fixed installation at distribution equipment

Compatibility

Designed as an OEM-style panel receptacle for high-amperage electrical distribution panels and enclosures requiring a NEMA 3R rated, 400 amp, 600 volt female connector with double set screw termination for 1/0 to 4/0 AWG conductors.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements for service entrance and feeder conductors. De-energize and lock out the panel before mounting or wiring this receptacle. Confirm conductor size falls within the 1/0 to 4/0 AWG range before tightening set screws. Do not exceed the 400 amp or 600 volt ratings under any operating condition.