Wiring 2P MCB as Main Switch with 1P MCB and Contactor for Circuit Protection.#OverloadProtection #ShortCircuitBreaker #ElectricalBreaker #Electricals #ElectricalEngineering #Switchgear #PanelBox #DistributionBox #Electrician #MCB #MiniCircuitBreaker #MiniatureCircuitBreaker #ACmcb