The simplest answer to why your microwave is tripping the breaker is that the circuit is overloaded. In my experience, the circuit can get overloaded if too many appliances are plugged into it. Please ensure your microwave is on a dedicated circuit by heading to the breaker box. If you cannot find a circuit labeled “Microwave,” but there RCCB or RCD is the new name that specifies current operated (hence the new name to distinguish from voltage operated). The new RCCB is best because it will detect any earth fault. The voltage type That means the MCB is not faulty. But if all appliances are working fine, then it may be the MCB or the wiring that needs replacement. Some MCBs also show discoloration or give a burning smell to indicate damage. Secondly, you can use a 230V multimeter voltage tester to check MCB faults. Select the MPCB rating for a three-phase, 415V, 0.8pf, of 10HP/7.5 kW induction motor. MPCB Range in Amps = 1.6 x 1000 x 7.5 / (1.732*415*0.8) Learn More: Earthing Procedure for Electrical Panel & Home Appliances. = 20 Amps. Then you have to choose the MPCB range between 13 A-22 Amps. If your AC is continuing to turn off after 15 minutes or less every single time, or even just minutes after it first kicks on, your unit is “short cycling.”. Short cycling should always be addressed and fixed, but it may be something simple you can handle yourself. If your AC is also blowing warm or hot air, this may be a sign of a serious Faulty ground wiring can lead to hot wires coming in contact with the ground wire of a metal outlet box. In this situation, the circuit breaker can detect it and trip. However, unlike the previous two reasons, simply resetting the MCB will not solve the problem and is only a temporary fix. Fixing the ground wiring is the way to fix the problem. .

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