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Newmar Gi-30 Galvanic Isolator
Newmar Gi-30 Galvanic Isolator

Brand New with Factory's Warranty
List Price: US$499.00
Our Price: US$259.00
You save US$240.00!

Availability:: Usually ships the next business day
Product Code: NEWGI30

Description Extended Information

Galvanic Isolators

Sacrificial zincs corrode away as they protect metal thru hulls, shafts and props from damaging electrolysis. Stray, low voltage current flowing between the AC safety ground and DC bonding system is a principal cause of this "galvanic" action.

Installing the Galvanic Isolator between the AC safety ground and DC bonding system (see diagram), blocks a majority of the low voltage currents and corrosive action on the zincs is significantly reduced (while the integrity of the critical safety ground path is maintained.) This means a significant savings in boat haul-out fees and zinc replacement costs.

For additional safety, all units feature a large capacitor, providing a secondary low impedance path for sending AC current to ground.

Two models are offered; rated for 30 or 50 amp shore-power.


Model Shore Power Inches Centimeters Weight
VAC, Hz Rating, Amps H W D H W D Lbs. Kg.
GI-30 115/230, 50-60 30 2.7 4.8 7.3 6.9 12.2 18.5 2.45 1.1
GI-50 115/230, 50-60 50 4.5 4.7 8.9 11.4 11.9 22.6 3.2 1.5


Typical Wiring

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  • WarningWARNING: This product can expose you to chemicals including Di-n-hexyl Phthalate, DnHP, which is known to the State of California to cause reproductive harm, and Vinyl Chloride which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.

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