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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

  • 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.

Highlights

  • 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

Specifications

BrandHUBBELL
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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