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Black industrial watertight locking connector with thermoplastic elastomer housing

Hubbell Incorporated

Hubbell Incorporated HBL27W47BK 20A Watertight Locking Connector 2P 3W line protection

SKU CH-5MSY-7ZCVX

A watertight locking connector rated for 20 A at 125 V AC with a 2-pole, 3-wire L5-20R configuration

  • Product typeBus Plugs
  • Watertight seal protects connections in wet conditions
  • Locking mechanism prevents accidental disconnection during use
  • Industrial-grade thermoplastic elastomer and Valox construction resists corrosion
  • 20 A 125 V AC rating suits 1.0 HP single-phase equipment
  • Accepts cord diameters from .325 in to .875 in

20 A Watertight Locking Connector

The Hubbell HBL27W47BK is a 20 A watertight locking connector rated for 125 V AC single-phase service. It uses a NEMA L5-20R configuration with two poles and three wires. The body is moulded from black thermoplastic elastomer and Valox for industrial-grade durability.

Suited for industrial cord sets needing L5-20R

This connector fits cords from 0.325 in to 0.875 in diameter and accepts standard wiring. It is not for applications that require a power-indicator light or antimicrobial surfaces. Buyers needing a shrouded housing or a different NEMA configuration should look elsewhere.

Simple screw-terminal wiring

Strip the conductors, insert them into the marked terminals and tighten the screws. The cord-grip range of 0.325 in to 0.875 in must match the cable jacket or the seal will leak. The most common error is reversing the hot and neutral wires on the three-wire layout.

How it compares

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

Price $61.99
Pricier than about 55% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameHUBBELL WIRING DEVICE-KELLEMS
Product typeBus Plugs

Questions about this item

What cord diameter range does the HBL27W47BK accept so my existing cable will fit?

The connector accepts cord sizes from .325 in to .875 in, so any cable within that outer-diameter range will seat correctly.

Will this L5-20R connector mate with the L5-20P plugs already on my 20 A 125 V equipment?

Yes, the NEMA L5-20R configuration matches standard L5-20P plugs used on 20 A 125 V AC loads, providing a direct lock-in connection.

How can I confirm the watertight seal is engaged after I wire the connector?

Rotate the locking ring until it clicks into the detent; the thermoplastic elastomer gasket then compresses against the plug face, giving a visible, uniform seal with no gaps.

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