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Yellow thermoplastic elastomer watertight locking plug with four blades, straight orientation, screw terminals

Hubbell Incorporated

Hubbell HBL26W76 Watertight Locking Plug L16-20P 20 A 480V AC

SKU CH-P738-CBD8T

Watertight locking plug rated 20 A, 480 V AC with three-phase L16-20P configuration and screw-terminal wiring for cables from 0.375 to 0.875 in diameter

  • Product typeWatertight Devices
  • Watertight seal protects connections in wet environments
  • Locking L16-20P configuration prevents accidental disconnection under load
  • 20 A, 480 V AC rating suits heavy-duty three-phase equipment
  • Chemical- and impact-resistant thermoplastic elastomer housing withstands industrial abuse
  • Screw terminals accept cables from .375 in to .875 in diameter

Industrial Watertight Locking Plug

This Hubbell HBL26W76 is a NEMA L16-20P locking plug rated for 20 A at 480V AC three-phase power. It features a yellow thermoplastic elastomer housing that is watertight, chemical-resistant and impact-resistant. The straight-orientation body accepts cable diameters from .375 in to .875 in and terminates with screw terminals. Four blades on a three-pole, polarized configuration provide a secure industrial-grade connection.

Three-Phase Industrial Installations

Suited for electricians and maintenance crews wiring 20 A three-phase equipment in wet or harsh environments where a locking, sealed plug is required. Installers needing a different voltage, phase count, blade count or cable range should select a device with the matching NEMA rating for their application.

NEMA L16-20P 480V AC Rating

The NEMA L16-20P designation confirms this plug fits only 20 A, 480V AC three-phase receptacles with the same locking blade pattern. Verifying the receptacle matches this exact configuration is the single check that decides whether the part is correct for the job.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $40.99
Cheaper than about 63% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameHUBBELL
Product typeWatertight Devices

Questions about this item

Will the L16-20P plug fit the 480V three-phase receptacle on my older generator?

Yes, the NEMA L16-20P configuration matches 20 A 480V AC three-phase outlets, so it will connect directly to a compatible generator receptacle.

How can I confirm the watertight seal is engaged after wiring the plug?

Tighten the gland nut until the thermoplastic elastomer housing compresses evenly around the cable; the yellow body should sit flush with no visible gaps.

Does the package include the screw terminals and cable gland, or must I buy them separately?

The plug ships with integrated screw terminals and a built-in cable gland that accepts 0.375 in to 0.875 in diameter cable; no extra parts are required.

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