A marine isolation transformer separates onboard systems from shore power to prevent corrosion and electrical faults. Bridgeport Magnetics Group engineers each unit for safe, efficient use in wet and high-vibration environments. Every marine isolation transformer supports consistent voltage control and stable output in commercial and industrial marine systems.
| Model | Application | Power [KVA] Continuous | Voltage | Dimensions | Weight [Lbs.] | ||
|---|---|---|---|---|---|---|---|
| Input [V] | Output [V] | OD | Height | ||||
 MP3.6-30A | 50/60Hz (Global) | 3.6 | 120/240 | 120/240 | 10” | 5” | 47 |
 MP6 25A | 50/60Hz (Global) | 6 | 120/240 | 120/240 | 12.6” | 6.5” | 75 |
 Dual MP6 50A | 50/60Hz (Global) | 12 | 120/240 | 120/240 | 2x12.6” | 6.5” | 150 |
Isolation transformers eliminate shock hazards to persons on board and in the water adjacent to the boat. They also eliminate possible galvanic corrosion of metal hulls and propellers due to DC currents traveling through a shore ground connection, as well as nuisance tripping of GFI (ground fault interrupt) systems when on shore power. Leakage current varies from boat to boat. Unfortunately, even with all electrical systems in good working order it will often exceed 30mA. This will trip the GFI circuit breaker in the pedestal and leave the boat without power. The solution is to install a Marine-Puck on your boat. Marine-Pucks are fully embedded in solid epoxy resin inside a cup-shaped non-metallic enclosure. There are many advantages of toroidal transformers versus conventional laminated types.
Our Marine-Puck transformers manufacturer recently acquired UL Marine certification for the US and Canada.
Protect your vessel’s electrical systems with a marine isolation transformer designed for stability, corrosion resistance, and onboard safety. Each marine isolation transformer we build supports reliable operation in high-humidity, high-motion environments common to industrial and commercial marine applications. From voltage regulation to galvanic isolation, our units are engineered for performance where it matters most. Contact us to request a quote and get started with a transformer solution built specifically for your marine power needs.
