Appleton GRJ Series Explosionproof Conduit Outlet Box, Malleable Iron

Appleton GRJ Series Explosionproof Conduit Outlet Box, Malleable Iron

The Appleton GRJ Series conduit outlet box is an explosionproof, dust-ignitionproof, and raintight fitting built for indoor and outdoor classified locations. Constructed from malleable iron and furnished with an internal ground screw, this small, round conduit outlet box provides access for maintenance, allows connection of different lengths of threaded metal conduit, and permits changes in conduit direction while maintaining ground continuity.

Key Features

• Explosionproof & Dust-Ignitionproof: Rated explosionproof, dust-ignitionproof, and raintight for demanding hazardous-location environments.
• Durable Construction: Malleable iron body offers high tensile strength and ductility, delivering strong resistance to corrosion, impact, and shock.
• Integral Bushing Protection: Smooth, rounded integral bushing in each hub-type box protects conductor insulation during installation.
• Threaded Conduit Connection: Designed for use with threaded metal conduit in general purpose wiring applications.
• Tapered Hub Threads: Accurately tapped, tapered hub threads create tight, rigid joints and reliable ground continuity.
• Externally Threaded Body: Externally threaded body pairs with an internally threaded cover for a secure, weathertight seal.
• Furnished with Covers: Each outlet box ships complete with its matching cover, ready for installation.
• Internal Ground Screw: Built-in ground screw supports proper grounding of the conduit system.

Certifications & Compliance

• Class I, Division 1 and 2, Groups C, D
• Class II, Division 1 and 2, Groups E, F, G
• Class III
• Explosionproof and Dust-Ignitionproof Rated
• Raintight

Technical Specifications

• NEC/CEC Certifications and Compliances: Class I, Division 1 and 2, Groups C, D; Class II, Division 1 and 2, Groups E, F, G; Class III
• Standard Materials and Finishes: Malleable iron body with triple-coat finish (1) zinc electroplate, (2) chromate, and (3) epoxy powder coat

Typical Applications

• Hazardous and Classified Location Electrical Installations
• Indoor and Outdoor Conduit Runs
• Threaded Rigid Conduit Systems
• Maintenance Access Points for Conductor Wiring
• Corrosion-Prone Industrial Environments

Why Appleton?

Appleton engineers the GRJ Series with a malleable iron body and a triple-coat zinc electroplate, chromate, and epoxy powder coat finish, giving each conduit outlet box durable, corrosion-resistant performance in classified locations. With explosionproof, dust-ignitionproof, and raintight ratings backed by Class I, II, and III compliance, the GRJ Series delivers dependable, code-compliant protection for demanding electrical installations.

GRJ body-style key: the letter after GRJ denotes hub count/arrangement, not just size — GRJL is the 2-hub "L" configuration (this listing); GRJX is the 4-hub "cross" configuration (see the separate GRJX listing); GRJT is the 3-hub "tee" configuration. These are different box shapes for different conduit-run layouts, not simple size variants of one part — confirm the hub count and layout you need before ordering.