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Square galvanised steel electrical box with multiple knockouts, red finish, two-gang, 21 cu in capacity

Hubbell Incorporated

Hubbell Incorporated RACO 911-9 Electrical Box 21 cu in 2 Gang Galvanized

SKU CH-2PD2-THEWS

A 21 cu in galvanised steel square box with two gangs, twelve 1/2 in. and four 3/4 in. side knockouts plus four 1/2 in. and two 3/4 in. back knockouts, UL listed and RoHS compliant

  • Product typeElectrical Boxes & Covers
  • 21 cu in capacity fits multiple devices
  • Square 2-gang design suits standard installations
  • Galvanized steel construction resists corrosion
  • 12 side knockouts provide wiring flexibility
  • UL listed and RoHS compliant for safety

Two-gang square box for dual-device wiring

The Hubbell RACO 911-9 is a galvanized steel electrical box designed to house two switches or receptacles in a single 4-inch square enclosure. Its 21 cubic-inch capacity meets code requirements for multiple conductors and device combinations in residential or commercial rough-in work.

Knock-out layout limits cable entry options

The box provides twelve half-inch and four three-quarter-inch side knockouts plus four half-inch and two three-quarter-inch back knockouts. No integral clamps are included, so each cable or conduit run must be secured with separate fittings matched to the chosen knockout size.

21 cubic-inch capacity determines fill compliance

Total conductor count, device yokes and any internal clamps must stay within the 21 cu in volume to satisfy NEC box-fill calculations. Installations requiring additional devices, larger conductors or extra splices will need a deeper or larger enclosure.

How it compares

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

Price $4.99
Cheaper than about 92% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameRACO
Product typeElectrical Boxes & Covers

Questions about this item

Should I pick the 21 cu in box or a larger capacity?

The 21 cu in capacity suits two-gang installations with typical device counts; choose a larger box only if your wire fill calculation exceeds this volume.

What does the 21 cu in capacity mean once the box is mounted?

It provides 21 cubic inches of internal space for conductors and devices, meeting code limits for the number of wires allowed in a two-gang square box.

How does the UL listing affect what I can run through the knockouts?

The UL listing confirms the box meets safety standards for electrical enclosures, and the 1/2 in. and 3/4 in. knockouts accept standard conduit or cable connectors.

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