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Old 04-22-2019, 11:19 AM   #14
stevemitchell
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City: Seattle
Vessel Name: Aruna
Vessel Model: Kristen Yachts 50 Pilot House
Join Date: Sep 2018
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Quote:
Originally Posted by sunchaser View Post
Steve
Did the PO have that plug reserved for something that he didn't want tied into an older MSW inverter but genset or shore power only?

The neutral/ground switching relay in the Magnum 2800 can affect the new dock GFCI configurations due to the millisecond relay switching delay. This delay can, but not always, trip out the dock breaker when hooking up your shore power. The solution for me has been to insure inverter is off when hooking up to newer shore power setups.
No I don't think he wired it for that purpose. These are pretty random places, and he even said that they hadn't figured out why they didn't work away from the dock.

Part of the reason I'm delving into this is to add a galvanic isolator and ELCI breaker. I am 100% sure that if I added in the ELCI, it would trip pretty frequently because of this and other potential wiring issues. I have not had the inverter cause the shore side to trip yet, but I haven't visited many remote marinas who have the updated pedestals.
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