Locking Plug, L22-20P, 20 A, 277/480V AC, Three Phase, 4 Pole, Screw Terminals, Black, White MPN:HBL2521

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Brand: HUbbell Wiring
Part #: HBL2521
UPC: 783585038599
SKU
510-G2324944
Regular Price $96.31 Special Price $68.79

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Locking Plug, L22-20P, 20 A, 277/480V AC, Three Phase, 4 Pole, Screw Terminals, Black, White

The HUBBELL 20A Twist-Lock Plug L22-20P is a rugged and reliable locking plug designed for demanding industrial applications. Suitable for use in harsh environments, it features a four-pole, five-wire configuration and is rated for 277/480V AC three-phase power. With a cord grip design and clear wire entry, it reduces strain on terminations and makes wire installation easier. The plug is made with a durable nylon housing and brass blades for reliable conductivity, making it an ideal choice for applications such as manufacturing, construction, and heavy industry. Its compact size and easy installation make it a convenient solution for a variety of industrial settings.

Top product features:

  • It features a four-pole, five-wire configuration and is rated for 277/480V AC three-phase power.
  • The plug includes a cord grip design intended to reduce strain on terminations, as well as a clear, funnel-shaped wire entry.
  • It has screw terminals with standard wiring style and straight orientation, accommodating #16 AWG to #8 AWG stranded copper wire only.

Top product applications:

  • Industrial Power Distribution Systems
  • Heavy-Duty Machinery Installation
  • High-Density Data Centers
  • The HUBBELL 20A Twist-Lock Plug L22-20P is a locking plug intended for use in industrial environments. It features a four-pole, five-wire configuration and is rated for 277/480V AC three-phase power. The plug includes a cord grip design intended to reduce strain on terminations, as well as a clear, funnel-shaped wire entry.



    Key Features of the HUBBELL 20A Twist-Lock Plug L22-20P:


    • Amperage and Voltage: Rated for 20 A at 277/480V AC, suitable for demanding industrial use.

    • NEMA Configuration: L22-20P with four poles and five wires
    • grounded connection.

    • Cable Range: Accepts cords from 0.350 in to 1.150 in diameter
    • accommodates #16 AWG to #8 AWG stranded copper wire only.

    • Wire Connection Type: Screw terminals with standard wiring style and straight orientation.

    • Material Properties: Nylon housing offers chemical and impact resistance
    • brass blades provide reliable conductivity.

    • Operating Temperature Range: Maximum continuous temperature of 75°C, minimum -40°C (without impact).

    • Performance Ratings: Dielectric voltage rating: 2,000V minimum
    • certified current interrupting at full rated current.

    • Standards Compliance: Certified to CSA C22.2 No.42, Federal Specification W-C-596, UL 498 listed.



Additional Information

  • Country of Origin: US
  • Drop Ship Item: No
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 1 days
  • Minimum Order Quantity: 1
  • Unit of Measure: EA
  • Package Length: 2.50
  • Package Width: 2.50
  • Package Height: 4.20
  • Package Weight: 0.35
Product info last updated on January 13, 2026 12:27pm UTC Category: Wiring Devices
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