Extension Rings

Extension Rings Square Box Extension Ring The Steel City Extension Rings square box extension ring provides an effective solution for increasing the cubic capacity of electrical boxes in built-in installations. Designed for use by electrical distributors and switchgear suppliers, this extension ring is suitable for lighting solutions and wire and cable management systems requiring additional space. It is constructed from pre-galvanized steel for durability and corrosion resistance, making it appropriate for a variety of commercial and industrial electrical applications. Specifications Manufacturer: Steel City Manufacturer Part #: 53151 3/4 Material: Steel Color: Silver Shape: Square Dimensions: 4 Inches Length x 4 Inches Width x 1-1/2 Inches Depth Cubic Capacity: 21 cu in Number of Outlets: 1 Knockouts: 8 (3/4 Inch) Box Quantity: 25 Standard: UL E2969 Listed Features Pre-galvanized steel construction for enhanced durability and corrosion resistance Provides 21 cubic inches of additional capacity to existing electrical boxes Square shape designed for built-in installation boxes Equipped with eight 3/4 inch knockouts for flexible conduit entry options Compatible with a wide range of electrical wiring and lighting fixture installations UL listed to ensure compliance with North American electrical safety standards Downloads & Links Spec Sheet Technical Drawing / Spec Sheet US