In the 3-phase distribution box, the MCCB is used as the main switch. RCCB. A distribution box is a low-voltage electrical enclosure that receives incoming power and distributes it safely to multiple outgoing circuits through protective and switching devices such as MCBs, RCDs, RCBOs, fuses, isolators, busbars, neutral bars, earth bars, and surge protective devices. Also called an electrical distribution box, power distribution box or DB box, it helps organize electrical connections, isolate circuits and protect wiring. A distribution board or distribution box is where the main power supply is distributed to multiple loads. Actual units use PNP status indicator, NPN status indicator, or neither. Dimensions are shown in mm (in. Selecting the right type determines whether a facility runs without interruption or chases electrical faults through disorganized.
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