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Black thermoplastic elastomer watertight locking plug with nickel-plated brass blades, L5-20P configuration

Hubbell Incorporated

Hubbell Incorporated HBL26W47BK Watertight Locking Plug L5-20P 20 A

SKU CH-6HB6-ZW7XN

A watertight locking plug rated 20 A, 125 V AC with IP69K and UL Type 4, 4X, 12, 6, 6P protection for wet or washdown environments

  • Product typeWatertight Devices
  • Watertight IP69K rating protects against high-pressure washdowns
  • Locking L5-20P configuration prevents accidental disconnection under load
  • Thermoplastic elastomer housing resists chemicals, impact and UV exposure
  • Wide cord range .375 to .875 inch suits multiple cable sizes
  • Rated 20 A at 125 V AC for reliable single-phase power delivery

Hubbell HBL26W47BK Watertight Locking Plug L5-20P

This Hubbell HBL26W47BK is a 20 A watertight locking plug with an L5-20P NEMA configuration rated for single-phase 125 V AC operation. It is built for industrial and commercial users who need a reliable connection in wet or washdown environments where standard plugs would fail.

Thermals noise and power draw in normal use

The plug operates continuously from -40 °C to +60 °C without derating and carries up to 20 A at 125 V AC. Its thermoplastic elastomer housing and nickel-plated brass blades resist heat buildup while the IP69K rating and UL Types 4, 4X, 12, 6 and 6P ensure dust and moisture cannot affect electrical performance.

Replaces standard plugs in washdown

This device upgrades from non-watertight or lower-rated plugs where high-pressure washdown, chemical exposure or UV degradation cause premature failure. The jump is worth it when equipment must stay powered through regular sanitation cycles or permanent outdoor installation and the cord diameter falls between .375 and .875 inches.

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

How do I install the HBL26W47BK watertight locking plug, and what step is often missed?

Strip wires to the correct length, insert into the screw terminals matching the L5-20P polarised layout, tighten each terminal screw securely, then assemble the thermoplastic elastomer housing and tighten the cord-grip nut until the seal compresses evenly on the cable — skipping full compression leaves the IP69K seal incomplete.

What maintenance or replacement will the HBL26W47BK plug need over time?

Inspect the nickel-plated brass blades and contacts for corrosion or pitting, check the thermoplastic elastomer housing for cuts or UV degradation, and verify the cord-grip seal remains tight; replace the plug if blade wear exceeds visible material loss or if the IP69K seal can no longer be achieved.

What limit appears first when the HBL26W47BK plug runs continuously at full load?

The 20 A / 125 V AC rating combined with the maximum +60 °C ambient temperature limit; sustained operation at 20 amps in high ambient heat will reach the thermal ceiling before any other constraint.

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