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Black and white watertight locking plug with shrouded industrial housing

Hubbell Incorporated

Hubbell Incorporated HBL2321SW Watertight Locking Plug L6-20P 20A video accessory

SKU CH-PCM3-B45HM

A watertight, twist-lock plug rated for 20 A at 250 V AC with IP66 protection and an operating range of -40 °C to +75 °C

  • Product typeWatertight Devices
  • Overall length5.2
  • Product colorBlack/White
  • Product weight0.6
  • IP66-rated moisture and dust protection for harsh environments
  • 20 A, 250 V AC twist-lock design ensures secure power connection
  • Accepts 0.36 in to 0.93 in cable diameters and 16 to 8 AWG wire
  • Impact-resistant PBT housing with UL94 V-0 flammability rating operates from -40°C to +75°C
  • CSA Type 4 and UL Listed certification for industrial safety compliance

Industrial 20 A Locking Plug

The Hubbell HBL2321SW is a 20 A, 250 V AC twist-lock plug rated IP66 for dust and moisture ingress. Its shrouded, impact-resistant PBT housing and brass contacts are built for industrial environments where reliable power connections are critical. The device operates from -40 °C to +75 °C and meets UL 94 V-0 flammability standards.

Suited for Wet or Harsh Locations

Installers running equipment in wash-down areas, outdoor sites or chemical-exposed zones will benefit from the watertight seal and stainless-steel hardware. It is not intended for general-purpose indoor outlets, low-voltage signal circuits or applications requiring a straight-blade connector.

Cable Range and Headroom

The plug accepts cable diameters from 0.36 in to 0.93 in and wire sizes from 16 AWG to 8 AWG, covering most heavy-duty flexible cords. Beyond 8 AWG conductors or cables larger than 0.93 in, a larger-bodied connector would be required.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $67.99
Pricier than about 65% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameHubbell Wiring Device-Kellems
Model nameHBL2321SW
Product typeWatertight Devices
Product colorBlack/White

Questions about this item

What receptacle rating must the outlet or connector already provide for this L6-20P plug to lock and operate safely?

The outlet or connector must be rated for 20 A at 250 V AC single phase with an L6-20R configuration to match the plug's twist-lock design.

How does the plug's cord accommodation range affect reuse of an existing cable with a diameter outside 0.36 in to 0.93 in?

Cables thinner than 0.36 in or thicker than 0.93 in cannot be securely clamped by the gland; a cable within that range and 16 AWG to 8 AWG conductors is required.

After wiring, what visual or physical checks confirm the plug is assembled correctly and maintaining its IP66 seal?

Verify the clear polycarbonate retainer is fully seated, all stainless steel screws are tight, the shroud aligns without gaps, and the twist-lock engages smoothly with the matching receptacle.

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