I'm controlling a AC solenoid from a PLC and the solenoid keeps burning up after 12-24 hours of operation, and it'll pop my 15 amp breaker. It won't short the relay or blow the fuse from the output though. I have checked the voltage going to the solenoid and current during operation and nothing unusual shows. I get 120 to coil and it pulls in about .5 Amps. I believe its neutral because it only pops the breaker and doesn't blow the fuses? Could someone help me?