Page 160 - REPOWER REFERENCE GUIDE (2020)

Battery and Electrical
The MerCathode controller assembly must be wired as indicated following. Apply a thin coat of Liquid Neoprene to all electrical
connections.

a a - Controller

b - Fuse
b c - Electrode
d - Black wire—with engine harness

d

c
8526

Tube Ref No. Description Where Used Part No.

25 Liquid Neoprene MerCathode electrical connections 92- 25711 3

Galvanic Isolator
Boats that are connected to AC shore power require additional protection to prevent destructive low‑voltage galvanic currents
from passing through the shore power ground wire. A Quicksilver isolator (888557Q01) can be installed to block the passage of
these currents, while still providing a path to ground for dangerous fault (shock) currents.
NOTICE

Connecting to AC shore power significantly increases the potential for galvanic corrosion. Isolate shore power from the boat
ground to prevent corrosion.

The Quicksilver galvanic isolator is a solid‑state device that is series connected in line with the boat's safety grounding lead
ahead of all grounding connections on the boat. This device functions as a filter, blocking the flow of destructive low‑voltage
galvanic (DC) currents but still maintaining the integrity of the safety grounding circuit.

Page 6C-8 © 2019 Mercury Marine 90-8M0149179 eng NOVEMBER 2018