Raco 8189 | 4" x 1-1/2" Welded Square Electrical Box, 21.0 cu. in., Pre-Galvanized Steel
The Raco 8189 square box is a welded, pre-galvanized steel enclosure designed for use in commercial and residential electrical systems. Sized at 4 inches square with a 1-1/2 inch depth, this box provides 21.0 cubic inches of capacity and is suitable for mounting receptacles, switches, and wiring devices in exposed or concealed work applications.
Construction & Features
Material: Fabricated from 1/16-inch (16-gauge nominal) pre-galvanized steel for corrosion resistance and structural integrity.
Configuration: Welded corners for rigidity and consistent dimensional tolerance.
Knockouts:
(8) 1/2-inch and (4) TKO knockouts on the sides
(3) 1/2-inch and (2) TKO knockouts on the bottom
Grounding: Includes provisions for grounding screws
Cover Compatibility: Designed for use with standard 4" square covers and mud rings
Certification: UL Listed to UL 514-A for safety and code compliance
Dimensions & Capacity
Box Size: 4" x 4"
Depth: 1-1/2"
Volume: 21.0 cubic inches
Application: Suitable for use with up to five 12 AWG conductors under standard fill calculations
Installation Notes
This box is typically installed flush in metal or wood stud walls or surface-mounted with appropriate brackets or supports. It accepts standard device plates and can be used for branch circuit wiring, lighting, and receptacle installations. Combination screw heads assist in rapid device mounting. Ensure code-compliant conductor fill and secure box bonding during installation.