30amp surge protector on 50amp line
Quick search here turned up nothing. Am getting a new trailer. It’s set up for 50amp but doesn’t have the 2nd AC unit installed. Has the 50amp cord. Without the 2nd AC, I wouldn’t think that the RV w...
Forum Discussion
For reference it's been discussed many times that a 50A 4 wire RV circuit is actually 2 120V 50A circuits allowing for 3 or 4 A/C units or combinations of other higher draw devices.
Without getting into the details of the 50A RV circuit which has been discussed many times this circuit can and does cause very high and low voltage when the common neutral is open or partially open which can be a pedestal or RV problem. Hence it's been my recommendation that all 50A RVs use a EMS protects against this possibility since high voltage can damage connected equipment in the RV.
In 2004 with my first 50A RV I installed the Progressive Industries HW 50C EMS which protects against an open 50A neutral and 10 other faults.
Without getting into the details of the 50A RV circuit which has been discussed many times this circuit can and does cause very high and low voltage when the common neutral is open or partially open which can be a pedestal or RV problem. Hence it's been my recommendation that all 50A RVs use a EMS protects against this possibility since high voltage can damage connected equipment in the RV.
In 2004 with my first 50A RV I installed the Progressive Industries HW 50C EMS which protects against an open 50A neutral and 10 other faults.
