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Gray thermoplastic outlet box cover, single gang, vertical mount, no lid, neoprene gasket

Hubbell Incorporated

Hubbell Incorporated HBL3051 Outlet Box Cover 1 Gang

SKU CH-D3D3-QDXBC

A single-gang outlet box cover for duplex receptacles, made from grey thermoplastic elastomer with a neoprene gasket and UL/CSA listing

  • TypeElectrical Boxes & Covers
  • Fits single-gang boxes for duplex receptacles
  • Thermoplastic elastomer body resists impact and chemicals
  • Neoprene gasket seals against moisture and dust
  • Gray finish matches standard industrial environments
  • UL and CSA listed for code-compliant installations

Hubbell HBL3051 Outlet Box Cover

The Hubbell HBL3051 is a thermoplastic elastomer cover for a single-gang outlet box. It fits a duplex receptacle with vertical mounting and includes a neoprene gasket. The grey cover carries a NEMA 1 rating and meets UL and CSA standards.

Indoor dry-location installations needing

This cover suits electricians finishing a standard duplex outlet in a one-gang box where a NEMA 1 enclosure is specified. It will not serve installations that require a hinged lid, a multi-gang configuration or a higher NEMA rating for wet locations.

Single-gang duplex receptacle fit with NEMA 1 rating

The defining specification is the combination of a one-gang footprint, vertical duplex receptacle cut-out and NEMA 1 classification. If the project calls for a different gang count, receptacle style or environmental rating, this cover will not match the requirement.

Highlights

  • Fits single-gang boxes for duplex receptacles
  • Thermoplastic elastomer body resists impact and chemicals
  • Neoprene gasket seals against moisture and dust
  • Gray finish matches standard industrial environments
  • UL and CSA listed for code-compliant installations

Specifications

BrandHUBBELL WIRING DEVICE-KELLEMS
TypeElectrical Boxes & Covers

Questions about this item

Will the neoprene gasket on the HBL3051 cover need periodic replacement?

The cover uses a neoprene gasket for sealing; like any elastomer it can harden or crack over time and should be inspected during routine electrical maintenance.

What is the first limitation you hit when the HBL3051 cover is used continuously in a damp location?

Its NEMA 1 rating only protects against incidental contact and falling dirt, so sustained moisture exposure is the limiting factor.

Does the thermoplastic elastomer body of the HBL3051 cover get hot or make noise when the circuit runs all day?

The cover is a passive enclosure with no moving parts or power dissipation, so it produces no heat or noise of its own.

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