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Black nylon industrial locking plug, straight body, three blades, 1.97 inch face diameter

Hubbell Incorporated

Hubbell Incorporated HBL2311BK 20A Locking Plug 2P 3W 125VAC L5-20P Black video accessory

SKU CH-MW73-3574C

A 20 A, 125 V AC industrial-grade locking plug with a straight nylon housing, screw terminals and a 1.97 in face diameter

  • Product typePlug
  • Overall length2.5
  • Product colorBlack
  • Product weight0.3
  • 20 A industrial rating for demanding power connections
  • L5-20P locking design prevents accidental disconnection
  • Nylon housing resists chemicals and impact
  • Screw terminals accept cables from 0.36 to 0.93 in
  • Compact 1.97 in face fits tight spaces

Industrial locking plug for 20 A circuits

The Hubbell HBL2311BK is a straight-blade L5-20P plug rated for 20 A at 125 V AC. Its nylon housing resists chemicals and impact, making it suitable for industrial environments where reliable single-phase power connections are required.

Cable range and face size define headroom

Accepts cables from 0.36 in to 0.93 in diameter, terminating under screw terminals. The 1.97 in face diameter fits standard L5-20 receptacles; cables larger than 0.93 in cannot be secured and smaller conductors below 0.36 in may not clamp reliably.

NEMA L5-20P configuration decides compatibility

This plug provides two poles, three wires and a grounded polarised connection. It only mates with NEMA L5-20R locking receptacles; other NEMA patterns or non-locking outlets will not accept it.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 71% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameHubbell Wiring Device-Kellems
Model nameHBL2311BK
Product typePlug
Product colorBlack

Questions about this item

Will the 20 A, 125 V AC L5-20P locking plug mate with the existing L5-20R receptacle on my older distribution panel?

Yes, the NEMA L5-20P configuration is standardised, so this plug fits any compliant L5-20R receptacle regardless of panel age.

How can I confirm the screw-terminal connections are secure after wiring the black nylon housing?

Tug each conductor gently; the terminals should hold firmly and the locking collar must engage with an audible click when inserted into the receptacle.

Does the package include the strain-relief grommet for cables between 0.36 in and 0.93 in, or must I buy it separately?

The plug body ships with the integral cord-grip hardware that accommodates the full 0.36 in to 0.93 in diameter range; no extra grommet is required.

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