Crouse-Hinds 4" Steel Square Extension Ring 1-1/2" Deep with Conduit Knockouts

Crouse-Hinds 4" Steel Square Extension Ring 1-1/2" Deep with Conduit Knockouts

Professional electrical box extension for versatile wiring applications

The Crouse-Hinds 4" Steel Square Extension Ring delivers reliable electrical box extension capabilities with 1-1/2" depth and 21 cubic inch capacity. Constructed from drawn steel with integrated conduit knockouts, this extension ring provides professional-grade performance for ordinary/non-hazardous locations while meeting NEC/CEC standards for electrical installations.

Professional Features & Benefits

• 4" Square Design: Standard size compatibility ensures seamless integration with existing electrical box systems
• 1-1/2" Depth: Provides additional wiring space and accommodates increased conductor capacity requirements
• 21 Cubic Inch Capacity: Generous internal volume supports multiple conductors and connections per code requirements
• Drawn Steel Construction: Durable material construction delivers long-term structural integrity and corrosion resistance
• Conduit Knockouts: Pre-formed entry points facilitate efficient conduit connections and professional installations
• NEC/CEC Compliance: Meets established electrical code standards for safe and compliant installations
• Lightweight Design: At 0.46 lb, provides easy handling and installation without compromising structural strength

Technical Specifications

• Area Classification: Ordinary/Non-Hazardous Locations
• Box Size: 4"
• Capacity: 21 cubic in
• Construction: Drawn
• Depth: 1-1/2"
• Product Height: 1.5 in
• Product Length Depth: 4 in
• Product Material: Steel
• Product Weight: .46 lb
• Product Width: 4 in
• Standards Type: NEC/CEC

Installation & Operation

1. Mount the unit in a suitable location with appropriate clearance and access for connections and service.
2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
4. Configure any available load management or control features as supported by the provided specifications.
5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

• Residential electrical installations requiring additional box depth
• Commercial building electrical systems
• Industrial facility wiring applications
• Electrical panel and junction box extensions
• Code-compliant electrical box modifications
• Professional electrical contractor projects

Why Choose Crouse-Hinds Quality?

Crouse-Hinds extension rings deliver proven reliability through drawn steel construction and NEC/CEC compliance. The lightweight yet durable design ensures professional installation efficiency while maintaining long-term structural integrity for demanding electrical applications.