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bob213
Explorer
Mar 29, 2015

Strange power problems with PI EMS 30 and autoformer?

Sorry for the length of this but details help: This is not a first outing with these items. Connected as follows: 30amp Post,-PowerMaster autoformer,- PI EMS-30,-trailer. Post had 50amp/30amp/20a...
bob213's avatar
bob213
Explorer
Mar 30, 2015
pianotuna wrote:
why plug into the 20 amp?


The 20amp was used for an extension cord for other purposes totally separate from anything to do with the trailer. It's just when I flipped the breaker for the 20amp I got a surge across the two circuits (it would seem, anyway).

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