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Yellow thermoplastic elastomer watertight locking plug straight orientation three blades

Hubbell Incorporated

Hubbell HBL24W34 Watertight Locking Plug L7-15P 15A 277V

SKU CH-THJZ-FMECK

Watertight locking plug rated 15 A at 277 V AC with L7-15P NEMA configuration and screw-terminal wiring for cable diameters from .375 in to .625 in

  • Product typeWatertight Devices
  • Watertight seal protects connections in wet environments
  • Locking L7-15P configuration prevents accidental disconnection
  • Industrial-grade thermoplastic elastomer housing resists chemicals and impacts
  • Accepts cable diameters from .375 in to .625 in for versatile wiring
  • Rated 15 A at 277 V AC for demanding power applications

Industrial Watertight Locking Plug

The Hubbell HBL24W34 is a straight-orientation NEMA L7-15P plug rated for 15 A at 277 V AC. Its yellow thermoplastic elastomer housing provides chemical and impact resistance while maintaining a watertight seal. The three-blade, two-pole design includes screw terminals for secure wire connections. It accepts cable diameters from .375 in to .625 in and is built to an industrial grade.

Suitable For Single-Phase 277 V Equipment

This plug suits installers wiring single-phase industrial loads at 277 V AC where a locking, watertight connection is required. The polarized, screw-terminal design supports standard wiring practices for compatible equipment. It is not for circuits rated at other voltages or current levels, nor for applications needing a different NEMA configuration, a non-locking connector, or a higher pole count.

NEMA L7-15P Configuration Decides Fit

The single specification that determines compatibility is the NEMA L7-15P configuration, which defines the 15 A, 277 V AC, two-pole, three-blade locking interface. Only devices with a matching L7-15R receptacle will accept this plug. Verify the receptacle designation before purchase; no other rating or physical format will mate correctly.

How it compares

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Price $29.99
Cheaper than about 70% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameHUBBELL
Product typeWatertight Devices

Questions about this item

How can I confirm the HBL24W34 plug is working correctly after wiring it to a 277V AC circuit?

After tightening the screw terminals within the 0.375 to 0.625 in cable range, verify the circuit breaker holds and the connected equipment powers on without the plug housing overheating.

What components are included with the Hubbell HBL24W34 and what must I supply separately?

The watertight locking plug housing and internal screw terminals are included; you must supply the appropriate 0.375 to 0.625 in diameter cable and wire ferrules or stripped conductors.

Which NEMA configuration should I select for a 15 A, 277V single-phase industrial application?

Choose the L7-15P version listed, as it matches the 15 A, 277V AC, 2-pole, 3-blade, polarized specification for this watertight industrial grade plug.

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