New line of boat isolation transformers available

May 9, 2019 by Triton Staff

Marine Puck, made by Connecticut-based Bridgeport Magnetics Group, is a new line of boat isolation transformers for yachts and commercial vessels that features leakage current below one milliampere, according to a company press release.

This reportedly eliminates the risk of tripping the GFI circuit breaker when on shore power. It also eliminates shock hazard for anyone on board or swimming nearby, and eliminates galvanic corrosion of metal hulls, propellers and engine components caused by high leakage currents, according to the company.

Marine Puck transformer

Marine Puck transformers are available in three power ratings: 3.6 kVA, 6 kVA and 12 kVA. The transformer, embedded in solid epoxy resin inside a cup-shaped non-metallic enclosure, may be installed on board or on the deck, as the unit is hermetically sealed. It is available for 60Hz or 50/60Hz, and a boost unit is available to compensate for voltage drops and fluctuations caused by long dock-runs or in marinas with 208V service, according to the company.

For more information, visit