Eaton Crouse-Hinds 4" Steel Octagon Outlet Box, 2-1/8" Deep, 21.5 Cu In, Fixture Rated, with 1/2" & 3/4" Conduit Knockouts

Eaton Crouse-Hinds 4" Steel Octagon Outlet Box

Professional-Grade Steel Construction for Reliable Fixture Mounting

The Eaton Crouse-Hinds 4" Steel Octagon Outlet Box is a fixture-rated electrical box engineered for commercial and residential lighting installations. This heavy-duty steel octagon box delivers superior mounting strength and 21.5 cubic inch capacity for electrical professionals requiring reliable fixture support in ordinary locations.

Key Features & Benefits

Superior Construction & Durability

• Heavy-Duty Steel Construction - Provides exceptional strength and long-term durability for demanding electrical installations
• Fixture Rated Design - Engineered to safely support ceiling fixtures, fans, and heavy electrical devices
• 21.5 Cubic Inch Capacity - Generous wire capacity accommodates multiple conductors and wire nuts for complex connections
• Professional Grade Manufacturing - Crouse-Hinds quality ensures consistent performance and code compliance

Versatile Conduit Connectivity

• Multiple Conduit Openings - Features (3) 1/2" and (2) 3/4" knockouts for flexible conduit routing options
• 4" Standard Size - Industry-standard octagon dimensions ensure compatibility with standard covers and fixtures
• 2-1/8" Depth - Optimal depth provides adequate wire bending space while maintaining compact profile
• No Clamp Design - Allows use with separate conduit connectors for customized installation requirements

Installation Efficiency

• Pre-Punched Knockouts - Clean, precise openings reduce installation time and ensure proper conduit fit
• Standard Mounting Holes - Compatible with standard electrical box mounting hardware and brackets
• Corrosion Resistant Finish - Steel construction with protective finish ensures long-term performance

Technical Specifications

This octagon outlet box measures 4" in diameter with a 2-1/8" depth, constructed from heavy-duty steel for maximum durability. The box provides 21.5 cubic inches of wire capacity and features multiple conduit entry options including three 1/2" knockouts and two 3/4" knockouts. Designed for ordinary/non-hazardous locations and compliant with NEC/CEC standards. The fixture-rated construction safely supports ceiling-mounted electrical devices and lighting fixtures.

Installation Process

1. Select appropriate mounting location ensuring adequate structural support for fixture load
2. Secure box to ceiling joist or approved mounting bracket using appropriate fasteners
3. Remove required knockouts using knockout punch or hammer and drift pin
4. Install conduit connectors in selected knockout openings as required
5. Route conduit to box and secure with appropriate connectors
6. Pull conductors through conduit system and make electrical connections within box
7. Install appropriate octagon cover or fixture mounting hardware
8. Verify all connections are secure and box is properly grounded per NEC requirements

Applications

Perfect for:

• Commercial Lighting Systems - Office buildings, retail spaces, and institutional facilities
• Residential Ceiling Fixtures - Chandeliers, pendant lights, and recessed lighting installations
• Industrial Facility Lighting - Warehouse, manufacturing, and processing plant illumination
• Ceiling Fan Installations - Provides secure mounting point for residential and commercial ceiling fans
• Junction Box Applications - Wire splicing and distribution in ceiling-mounted electrical systems
• Emergency Lighting Systems - Exit signs, emergency fixtures, and backup lighting installations
• HVAC Control Wiring - Thermostat and control system connections in commercial buildings
• Security System Integration - Camera mounts, motion detectors, and alarm system components

Octagon Box System Benefits

Octagon outlet boxes provide superior fixture mounting capabilities compared to standard rectangular boxes. The eight-sided design distributes mounting stress more evenly, while the larger wire capacity accommodates complex lighting circuits with multiple conductors. The standardized 4" size ensures compatibility with a wide range of covers, fixtures, and mounting hardware, making octagon boxes the preferred choice for professional ceiling-mounted electrical installations.

Why Choose Steel Construction?

Steel octagon boxes offer exceptional strength and durability for fixture-rated applications. Unlike plastic alternatives, steel construction provides superior mounting strength for heavy fixtures and ceiling fans while maintaining excellent grounding continuity. The robust steel construction ensures decades of reliable service in commercial and industrial environments where vibration, temperature fluctuations, and mechanical stress demand professional-grade electrical components.