Seaward 74556 Owner's Manual download pdf (Page 21)

GALVANIC ISOLATORS

Because of overriding concerns for personal safety, a boat wired according to the

prevailing standards of the American Boat and Yacht Council and plugged into a

dock wired according to the National Electrical Code is subject to increased galvanic

corrosion as small DC electric currents move between boat and shore through the

safety ground wire in the shore cord.

Since 1986, Galvanic Isolators have been widely used to interrupt the flow of harmful,

low voltage currents that may cause galvanic corrosion. Today, most U.S. built boats

with factory installed 110 or 240 volt shore power systems are equipped with Galvanic

Isolators.

Seaward Products feels that it is advisable to add a Galvanic Isolator to any vessel not

so equipped. These devices are inexpensive and easily installed.

IMPORTANT NOTICE:

The limited two year warranty DOES NOT

cover damage to

water heater caused by galvanic corrosion.

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Seaward 74556 Owner's Manual Page 21