ASEA Power Systems 3.6 kVA Isolation Transformer [634003]3. 6 kVA Isolation Transformer ASEAs Isolation Transformer is a drop in replacement for Charles IsoG2 designed to protect vessel under fittings from galvanic corrosion and to shield onboard electronics from reverse polarity and shore power fluctuations. It also ensures safety by preventing the boat from sending unintended electric currents into the surrounding water. Features: Ignition Protected: Certified to ABYC C 1500 requirements, making them safe