I'm replacing a galvanic isolator on a 115V / 30A shore power line. I would like to use a Victron product, but the specs are only provided for 230V. Would these units work on 115V and would I use the unit spec'd for 16A / 230V or 32A / 230V? Doing the math, the wattage equivalent is 16A / 230V, but I am unsure if this is the correct way to determine equivalence in an a device with diodes, etc.