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Galvanized zinc electrical switch box with plaster ears and cable clamps

Hubbell Incorporated

Hubbell Incorporated RACO 523 Electrical Box 12.5 cu in

SKU CH-5D77-BSX43

A gangable 12.5 cu in switch box with BX clamps, one 1/2 in. knockout and Griptite clips for old-work installation

  • TypeElectrical Boxes & Covers
  • 5 cu in capacity fits multiple conductors
  • Gangable design allows multi-device configurations
  • BX clamps secure armored and flexible cables
  • Griptite clips enable old-work installation
  • Acceptable for two-hour fire-rated walls

12.5 cu in Switch Box

The RACO 523 is a galvanised steel switch box with a 12.5 cubic inch capacity designed for residential and light commercial wiring. It accepts a single device and supports old-work installations using the included plaster ears and Griptite clips. The gangable design allows multiple boxes to be joined for multi-gang configurations. Electricians and DIY installers will find it suitable for retrofit projects requiring a secure cut-in mounting method.

Thermals Noise and Power

As a passive metal enclosure this box generates no heat, produces no noise and draws no electrical power during normal operation. The galvanised zinc finish provides corrosion resistance without requiring any active cooling or energy input. Thermal and acoustic performance are therefore not applicable considerations for this component. Installers should focus on cable fill limits and secure mounting rather than environmental operating parameters.

12.5 cu in Capacity

The 12.5 cubic inch internal volume is the single specification that determines code compliance for the number and size of conductors permitted inside the box. Exceeding this fill capacity violates electrical safety standards and can create fire or shock hazards. Verify the total conductor volume against this limit before closing the enclosure. Buyers who need more wiring space must select a deeper or larger-volume box.

Highlights

  • 5 cu in capacity fits multiple conductors
  • Gangable design allows multi-device configurations
  • BX clamps secure armored and flexible cables
  • Griptite clips enable old-work installation
  • Acceptable for two-hour fire-rated walls

Specifications

BrandRACO
TypeElectrical Boxes & Covers

Questions about this item

How do I install the RACO 523 box in an existing wall and what step is often missed?

Cut an opening matching the 3 in. x 2 in. face, insert the box through the hole, and tighten the Griptite clips until they clamp the drywall; the step often missed is seating the plaster ears flush against the wall surface before tightening.

What maintenance or replacement will the 523 box need over time?

The galvanized zinc body and BX clamps are designed for the life of the installation; only the cover or device screws may need replacement if they become damaged during future device changes.

What capacity limit appears first when filling the 12.5 cu. in. box under sustained use?

The 12.5 cu. in. volume limits the number and size of conductors, splices, and device yokes you can install; exceeding this fill limit is the first constraint encountered.

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