Dimensions of a 12-position surface-mounted electrical box
A typical 12-position surface-mounted electrical box measures approximately 273 mm × 230 mm × 110 mm (height × width × depth).
Standard Dimensions
For a 12-module surface-mounted box:
- Height: 273 mm
- Width: 230 mm
- Depth: 110 mm
- Module size: Each module is typically 18 mm wide, arranged in a single row of 12 modules . These boxes are designed to accommodate modular devices such as circuit breakers, switches, or data outlets, and the internal layout ensures proper spacing for wiring and device installation.
Material and Protection
- Material: Flame-retardant PC+ABS plastic, providing high mechanical durability and corrosion resistance .
- Protection rating: IP65, offering complete protection against dust and strong water jets, making it suitable for damp or outdoor environments .
Mounting and Usage
- Mounting type: Surface-mounted with supplied screws, allowing installation on walls or other flat surfaces .
- Applications: Residential, commercial, or light industrial installations where a compact, high-capacity distribution box is required.
Notes
- Always verify the manufacturer's datasheet for exact dimensions, as slight variations may exist between brands.
- Ensure the box depth is sufficient for wire fill and device clearance to comply with electrical codes and safe installation practices . This size provides a compact yet flexible solution for consolidating multiple devices in a single surface-mounted enclosure.
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