4″ Exposed Work Cover, Steel, Square

Raco 906 – 4″ Square Exposed Work Cover for 1 Duplex Receptacle and 1 Toggle Switch

The Raco 906 is a 4″ square exposed work cover designed for surface-mounted applications requiring a single duplex receptacle and toggle switch configuration. Manufactured from galvanized steel, this cover plate is used with standard 4″ square boxes to provide a secure and accessible enclosure for electrical devices in industrial, commercial, and utility environments.

Precision-cut device openings and a smooth galvanized finish offer a professional-grade installation solution for exposed conduit and surface raceway systems. The Raco 906 includes two device mounting screws and complies with NEC and UL requirements for exposed electrical equipment.

Application Features

• ✅ Formed Steel Construction – Provides durability and maintains rigidity during installation and throughout service life.
• ✅ Factory Machined Openings – Accepts one standard duplex receptacle and one toggle switch without field modification.
• ✅ Standardized 4″ Square Format – Compatible with 4″ square electrical boxes used in surface-mount conduit systems.
• ✅ UL Listed – Conforms to applicable standards for surface box covers and exposed wiring methods.
• ✅ Pre-Tapped Screw Holes – Includes mounting hardware for quick device installation.

Technical Specifications

• Catalog Number: 906
• Cover Type: Exposed Work
• Dimensions: 4″ x 4″
• Material: Galvanized Steel
• Device Openings: 1 Duplex Receptacle + 1 Toggle Switch
• Compliance: UL Listed, NEC Article 314

Installation Considerations

The Raco 906 cover is designed for use with surface-mounted electrical boxes where devices are accessible and exposed. Use in conjunction with Raco 4″ square welded or drawn boxes. Ensure conduit entries are properly terminated and grounded in accordance with code. Device installation should be performed by licensed electricians familiar with wiring methods for exposed work systems.

Field Use and Applications

Commonly installed in workshops, mechanical rooms, basements, and light commercial facilities, this exposed cover type simplifies field access for receptacle and switch service. Its dual-function layout is ideal where control and power access are needed in a single location, such as lighting and auxiliary equipment zones.

Functional Advantages

• ✅ Code-Compliant – Meets NEC requirements for exposed wiring systems in accessible, non-hazardous locations.
• ✅ Space-Efficient Configuration – Consolidates two devices into a single box and cover footprint.
• ✅ Protective Design – Shields internal wiring and device terminals from incidental contact and impact.
• ✅ Contractor-Ready – Supplied with hardware for rapid field deployment in retrofit or new installations.