4" × 4" Square Steel Electrical Box Extension Ring
Description
The 4" × 4" Square Steel Electrical Box Extension Ring is designed to increase box depth and wiring capacity. Manufactured from pre-galvanized steel, it provides additional space to accommodate more conductors or device installations.
It fits precisely with standard 4" × 4" square electrical boxes, ensuring secure alignment and easy installation.
Specification
Product Name: 4" × 4" Square Steel Electrical Box Extension Ring
Material: Pre-Galvanized Steel / Galvanized Steel
Size: 4 inch × 4 inch
Depth: 1-1/2", 2-1/8"
Thickness: 0.8mm – 1.6mm
Knockout : 1/2", 3/4"
Installation Type: Surface mounted
Finish: Zinc coated
Standard: UL
OEM/ODM: Supported
| CAT# | Size | Depth | Hole Size | Knockouts | Thickness | ||
|---|---|---|---|---|---|---|---|
| Sides | Ends | Bottom | mm | ||||
| SBE50112 | 4"x4" | 1-1/2" | 1/2" | 6x1/2" | 6x1/2" | - | 0.8-1.6 |
| SBE75112 | 4"x4" | 1-1/2" | 3/4" | 4x3/4" | 4x3/4" | - | 0.8-1.6 |
| SBEM112 | 4"x4" | 1-1/2" | 1/2"&3/4" | 4x1/2"&2x3/4" | 4x1/2"&2x3/4" | - | 0.8-1.6 |
| SBE50218 | 4"x4" | 2-1/8" | 1/2" | 6x1/2" | 6x1/2" | - | 1.0-1.6 |
| SBE75218 | 4"x4" | 2-1/8" | 3/4" | 4x3/4" | 4x3/4" | - | 1.0-1.6 |
| SBEM218 | 4"x4" | 2-1/8" | 1/2"&3/4" | 4x1/2"&2x3/4" | 4x1/2"&2x3/4" | - | 1.0-1.6 |
Application
EMT conduit systems
Commercial building wiring
Industrial electrical installations
Junction and wire splicing projects
Packing
Standard export carton
Pallet packing available
Customized packaging supported
Advantage
Increases internal wiring capacity
Precise compatibility with 4" × 4" boxes
Strong galvanized steel construction
Easy installation
Strict quality control
Tags
4x4 Extension Ring, Square Box Extension, Steel Electrical Box Extender, EMT Accessory, Galvanized Steel Ring
