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Gray thermoplastic weatherproof cover with self-closing lid for FS/FD boxes

Hubbell Incorporated

Hubbell Incorporated HBL5221 Weatherproof Cover FS FD 1-Gang Gray

SKU CH-1C3A-WHB2J

Weatherproof cover fits FS or FD boxes, accepts duplex, GFCI, surge and STYLE LINE receptacles, self-closing lid with neoprene gasket, gray thermoplastic, includes mounting screws

  • TypeElectrical Boxes & Covers
  • Self-closing lid keeps moisture out
  • Fits FS or FD boxes for duplex and GFCI devices
  • UL Listed with CM standard for code compliance
  • Neoprene gasket seals against weather ingress
  • Thermoplastic gray cover resists UV and impact

Weatherproof cover for FS and FD boxes

The Hubbell HBL5221 is a single-gang weatherproof cover designed for FS or FD mounting boxes. It accommodates duplex, GFCI, surge receptacles, and STYLE LINE devices in a horizontal orientation. The grey thermoplastic construction includes a neoprene gasket for a weather-resistant seal. It is UL Listed and meets CM standards for outdoor or damp locations.

Self-closing lid and thermoplastic construction

A self-closing lid mechanism helps protect the wiring device from moisture and debris when not in use. The cover moulding uses thermoplastic material paired with a neoprene gasket to maintain the weatherproof rating. Mounting screws are included for direct installation onto the box. The assembly is rated for standard electrical box duty in exposed environments.

Sustained exposure in wet or damp locations

Under continuous outdoor exposure the neoprene gasket and thermoplastic body resist degradation from moisture and temperature cycling. The self-closing lid maintains its sealing action over repeated operations without manual intervention. UL Listing confirms compliance with safety requirements for sustained use in wet locations. The cover is not suited for applications requiring multiple gangs or vertical mounting orientations.

Highlights

  • Self-closing lid keeps moisture out
  • Fits FS or FD boxes for duplex and GFCI devices
  • UL Listed with CM standard for code compliance
  • Neoprene gasket seals against weather ingress
  • Thermoplastic gray cover resists UV and impact

Specifications

BrandHUBBELL WIRING DEVICE-KELLEMS
TypeElectrical Boxes & Covers

Questions about this item

How do I mount the HBL5221 cover to an FS or FD box, and what step is often missed?

Align the cover horizontally on the box, place the neoprene gasket between them, then fasten the included mounting screws; the step often missed is ensuring the gasket sits flat for a proper weatherproof seal.

What part of the HBL5221 will need replacement after long exposure to the elements?

The neoprene gasket can degrade over time from UV and temperature cycles, so it should be inspected periodically and replaced if it loses elasticity or shows cracking.

Which rating limits the HBL5221 first when it faces continuous wet or dusty conditions?

The UL Listed and CM markings define the weatherproof rating; sustained exposure beyond those tested conditions will reach the gasket seal limit first.

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