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Square steel extension ring, two-gang, pre-galvanized finish, twelve half-inch knockouts

Hubbell Incorporated

Hubbell Incorporated RACO 201 Extension Ring 2 Gangs Steel Square Box 22.5 cu in

SKU CH-ZWYQ-Y2A7T

A steel square extension ring adds 22.5 cu. in. capacity with twelve 1/2 in. knockouts for conduit

  • Product typeElectrical Boxes & Covers
  • Adds 22.5 cu. in. capacity with extension ring
  • Twelve 1/2 in. knockouts for flexible conduit entry
  • Pre-galvanized steel construction resists corrosion
  • Combination screw heads speed up installation
  • UL Listed for code-compliant safety

Extension Ring for Conduit Runs

The RACO 201 extension ring adds 22.5 cu. in. of capacity to a standard four-inch square box. It is built from 1/16 in. pre-galvanized steel with drawn construction for rigidity. Twelve 1/2 in. knockouts accept conduit or cable connectors. The ring is UL Listed for safety compliance.

Behaviour Under Continuous Pulls

Pre-galvanized steel resists corrosion during long service in damp or exposed locations. Drawn construction maintains knockout alignment when multiple cables are pulled through simultaneously. Combination screw heads speed up mounting with common driver bits. The ring acts as a permanent outlet box for surface conduit systems.

Limits of the Knockout Pattern

Twelve 1/2 in. knockouts set the maximum conduit count for this ring. Larger trade-size conduit cannot be used without a reducer or a different box. Capacity is fixed at 22.5 cu. in., limiting the number of conductors allowed by code. No larger or smaller knockout sizes are provided on this model.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $1.99
Cheaper than about 97% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameRACO
Product typeElectrical Boxes & Covers

Questions about this item

Does the steel box get hot or draw extra power when it stays energised all day?

The extension ring is a passive steel enclosure with no electrical consumption, so it produces no heat and draws no power during continuous use.

What mounting hardware or cover must I already have to install this 2-gang ring?

You will need a compatible 4-inch square cover and mounting screws; the ring itself has combination screw heads for quick fastening.

Will this 22.5 cu in ring fit onto my existing 4-inch square box with 1/2-inch knockouts?

Yes, it matches standard 4-inch square boxes and provides twelve 1/2-inch knockouts for conduit alignment.

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