Appleton FSK-1B-CA Cast Device Box Blank Cover 1 Gang

Product Description

The APPLETON FSK-1B-CA is a 1-gang flat blank cover designed for use with cast FS device boxes in electrical wiring installations. The body is constructed from copper-free aluminum with an epoxy powder coat finish, a stainless steel captive screw, and a neoprene gasket. The captive screw speeds installation and prevents loss during service. The cover seals the box opening completely, providing a weatherproof, raintight, and dust-tight enclosure when paired with a gasketed FS cast box. Licensed electricians install this cover in commercial, industrial, and utility applications where conduit systems are exposed to rough use or outdoor conditions.

This blank cover is suited for indoor and outdoor installations where a device opening must be closed off without mounting a wiring device. It is appropriate for use as part of a pull box assembly, a splice access point, or a branch conduit junction on FS-style cast boxes. The NEMA 3R and FB-1 enclosure rating makes it a reliable choice in wet or corrosive environments such as manufacturing floors, utility rooms, exterior wall runs, and rooftop equipment areas where conduit boxes are subject to physical impact and moisture exposure.

Key Features

• Copper-free aluminum body with epoxy powder coat finish resists corrosion in indoor and outdoor environments
• Neoprene gasket provides weatherproof, raintight, and dust-tight seal when used with a gasketed FS cast box
• Captive stainless steel screw speeds installation and prevents screw loss during service
• Blank flat device opening closes unused gang openings on FS cast boxes
• NEMA 3R and FB-1 rated enclosure suitable for wet and rough-use locations
• Approved to UL 514A and CSA C22.2 for use in compliant electrical installations

Compatibility

Designed for use with FS-style cast gasketed device boxes that accept standard flush wiring device covers. Intended for use on ridge-top FS boxes per NEMA FB-1 and UL 514A requirements.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the circuit and verify the absence of voltage before opening or covering any junction or pull box. Ensure the neoprene gasket is properly seated to maintain the weatherproof and dust-tight rating. Do not overtighten the cover screw, as this may damage the gasket and compromise the enclosure rating.

Technical Specifications

• Material (Body): Copper-Free Aluminum
• Material (Screw): Stainless Steel
• Material (Gasket): Neoprene
• Finish: Epoxy Powder Coated
• Number of Gangs: 1
• Device Opening Type: Blank
• Cover Type: Flat
• Enclosure Rating: NEMA 3R / FB-1
• Mounting: Box
• Approvals: UL 514A, CSA C22.2
• Applicable Standard: NEMA FB-1
• Package Length: 11.3 inches
• Package Width: 6.1 inches
• Package Height: 0.38 inches
• Package Weight: 0.25 pounds
• Country of Origin: Mexico

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: FSK-1B-CA