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AC me Contactor ka use kyon kiya jata hai? | AC PCB Repairing Course – Multitech Institute AC PCB Repairing Course की Live Class में students को AC Contactor का real use aur working practically समझाया गया। ✅ High Current Control Compressor high current leta hai, isliye PCB direct load nahi leti—contactor ke through supply control ki jati hai। ✅ PCB Safety Contactor PCB ko high voltage & current se protect karta hai। ✅ Long Life & Reliability Relay ki jagah contactor use karne se arcing kam hoti