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Dimensions of the main distribution box for 12 circuits

Dimensions of the main distribution box for 12 circuits

A typical 12-circuit distribution box measures approximately 250 mm (length) x 190 mm (width) x 85 mm (height).Standard DimensionsThe Marshal MDB-12F 12 Way Distribution Box, a common indoor flush-mounted model, has dimensions of 250x190x85 mm (LxWxH) and features a metal body with a fire-retardant ABS and transparent PC cover, suitable for 12 MCBs with bus bars included (IP40 rating) (Marshal Electrical) . Other 12-circuit distribution boxes, such as those offered by MajorTech, are available in flush mount or surface mount options, typically designed for indoor use with similar compact dimensions to fit standard wall cavities (MajorTech) .Additional ConsiderationsMaterial: Metal or ABS plastic with fire-retardant properties.Mounting: Flush-mounted or surface-mounted depending on installation requirements.Protection Rating: Commonly IP40 for indoor use, protecting against solid objects but not water.Circuit Capacity: Designed to accommodate 12 MCBs or channels, sometimes with dual circuit breaker protection for overload and short-circuit safety (DSPPA) . These dimensions provide a practical reference for planning installation space, ensuring proper clearance, and selecting compatible enclosures for residential or commercial electrical setups.

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Electrical Box Dimensions Manufacture

Electrical Box Dimensions Contact us today for quotes, OEM service, or technical support. We respond quickly and support small, medium, and large

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