Newmar® GI-50 - 50A Galvanic Isolator

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Product Details


50A Galvanic Isolator (GI-50) by Newmar®. The Galvanic Isolator (GI) is a device for reducing stray low voltage currents traveling between the shore power's AC safety ground (earth) and the boat's DC bonding system, while maintaining the safety requirement of an electrical path to ground in the event of a short circuit.



Shore Power Voltage: 115-230 VAC, 50-60 Hz
Current Rarings (Nominal): GI-30: 30 Amps, GI-50: 50 Amps
Maximum Short Circuit (Both Models): 5,000 Amps
Stray Current Protection: Up to 1.4 V DC
Dimensions: GI-30: 2.75" x 4.75" x 7.3" (7 x 12.1 x 18.5 cm.); GI-50: 4.5" x 4.75" 8.9" (11.4 x 12.1 x 22.6 cm.)
Weight: GI-30: 2.3 LBS., 1 Kg, GI-50: 3.2 LBS., 1.5 Kg


  • Engineered to high standards
  • High-grade design delivers extended lifespan
  • Made with premium materials

These stray currents are a chief cause of destructive galvanic corrosion (sometimes referred to as "electrolysis") which eats away at sacrifi cial zincs, or if there are none, destroys outdrives, propellers and through-hull fittings.

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