Locking Receptacle, Non-NEMA, 50 A, 250/600V AC, Single Phase, 2 Pole, Flush Mount, Screw Terminals

The HUBBELL 50A Twist-Lock Receptacle is a locking receptacle rated for use in indoor, dry locations. It features a twist-lock mechanism intended to reduce the likelihood of accidental disconnection and supports single-phase power at 250/600V AC with a current rating of 50 amps. The device accommodates solid or stranded copper wire ranging from #10 AWG to #6 AWG and mounts flush for streamlined installation.

Key Features of the HUBBELL 50A Twist-Lock Receptacle:

• Construction: Thermoset base material with phenolic housing and impact modified PBT for high heat resistance and durability.


• Contact Material: Brass one-piece contacts


• Operating Temperature Range: Rated for continuous operation up to 167°F (75°C) and down to -40°F (-40°C).


• Wire Compatibility: Accepts #10 AWG – #6 AWG solid or stranded copper wire; maximum wire size is 4 AWG, minimum is 8 AWG.


• Mounting Type: Flush mount design suitable for single-gang installations; includes cover as a special feature.


• NEMA Configuration: Non-NEMA, polarized, grounded design with screw terminal connections identified per UL standards (X, Y, Z, White, Green).


• Flammability Rating: Meets UL94 V-2 requirements for flame resistance.


• Standards Compliance: CSA Certified C22.2 No.42 and UL 498 listed; IP20 ingress protection; NEMA Enclosure Rating 1 (indoor use only).