The HUBBELL 20A Twist-Lock Plug L18-20P is a locking plug rated for use in industrial applications where a locking connection is specified. It features a 4-pole, 4-wire configuration and is rated for 120/208V AC three-phase power at up to 20 amps. The plug features a cord grip intended to reduce strain on terminations, along with a clear, funnel-shaped wire entry for ease of wiring. An integral dust shield present helps prevent contaminants from entering the wiring chamber.



Key Features of the HUBBELL - 20A Twist-Lock Plug L18-20P:


  • Amperage/Voltage Rating: Rated for 20 A and 120/208V AC three-phase circuits

  • NEMA Configuration: L18-20P (locking type)

  • Cable Range: Accepts cable diameters from 0.350" to 1.150"

  • Wire Size Compatibility: Accommodates #16 AWG to #8 AWG stranded copper wire

  • Nylon housing provides chemical and impact resistance

  • Operating temperature range: -40°C to +75°C (without impact)

  • Dielectric Strength: Withstands minimum of 2,000V

  • Compatible with listed portable cords; suitable for cord-mounted installation

  • Screw Terminals: Standard screw terminal connections with polarized orientation

  • Standards Compliance: Certified to CSA C22.2 No.42, UL498, Federal Specification W-C-596

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