4" × 2" Rectangular Steel Handy Box Extension Ring
Description
The 4" × 2" Rectangular Steel Handy Box Extension Ring is designed to increase the wiring capacity of standard 4" × 2" handy boxes. Manufactured from high-quality pre-galvanized steel, this extension ring provides additional depth for accommodating extra conductors, devices, or wiring connections.
It is widely used in commercial and industrial electrical conduit systems where box fill capacity needs to meet installation code requirements. The extension ring fits precisely with standard 4" × 2" steel handy boxes, ensuring secure alignment and easy installation.
Specification
Product Name:4" × 2" Rectangular Steel Handy Box Extension Ring
Material: Pre-Galvanized Steel / Galvanized Steel
Size: 4 inch × 2 inch
Depth: 1-7/8"
Thickness: 0.8mm – 1.6mm
Installation Type: Mounted with standard handy box
Finish: Zinc coated
Grounding: Integrated raised ground
Standard: UL
OEM/ODM: Supported
| CAT# | Size | Depth | Hole Size | Knockouts | Thickness | ||
|---|---|---|---|---|---|---|---|
| Sides | Ends | Bottom | mm | ||||
| HBE50178 | 4"x2" | 1-7/8" | 1/2" | 6x1/2" | 2x1/2" | - | 0.8-1.6 |
| HBE75178 | 4"x2" | 1-7/8" | 3/4" | 4x3/4" | 2x3/4" | - | 0.8-1.6 |
| HBEM178 | 4"x2" | 2-1/8" | 1/2"&3/4" | 4x1/2"&2x3/4" | 2x3/4" | - | 0.8-1.6 |
Application
EMT conduit systems
Commercial electrical wiring
Industrial power distribution systems
Switch and receptacle installations
Residential surface wiring projects
Packing
Standard export carton
Inner plastic bag protection available
Pallet packing available
Customized packaging supported
Advantage
- Increases box depth and wiring capacity
- Precise size compatibility with 4" × 2" handy boxes
- Strong galvanized steel construction
- Corrosion-resistant finish
- Easy installation and secure fit
- Stable production capacity for bulk supply
- Strict quality inspection before shipment
Tags
4x2 Extension Ring, Handy Box Extension Ring, Steel Extension Ring, Rectangular Box Extension, EMT Electrical Box Accessory, Galvanized Steel Ring, Electrical Box Extender
