Electrical System Overload Protection-350/377 Mag And; Seacore 350/377 Mag; Electrical System Overload Protection-350/377 Mag And Seacore 350/377 Mag - Mercury 350 MAG Manual

Section 2 - Getting to Know Your Power Package
The Quicksilver MerCathode System has a 20 amp in‑line fuse in the wire which connects to the positive (+) terminal on controller.
If the fuse is open, the system will not operate and will not protect against corrosion.
Electrical System Overload Protection—350/377 MAG and SeaCore 350/377
MAG
If an electrical overload occurs, a fuse will blow or the circuit breaker will trip open. The cause must be found and corrected before
replacing the fuse or resetting the circuit breaker.
NOTE: In an emergency, when the engine must be operated and the cause for the high current draw cannot be located and
corrected, turn off or disconnect all accessories connected to the engine and instrumentation wiring. Reset the circuit breaker. If
the breaker remains open, the electrical overload has not been eliminated. Further checks must be made on the electrical system.
Contact your authorized dealer.
1. A circuit breaker provides protection for the engine wiring harness and the instrumentation power lead. The circuit breaker
can be tested by pushing the red button. If the circuit breaker is functioning properly, the yellow lever will appear. Reset the
yellow lever after testing, or if tripped, by pushing the yellow lever back into the housing.
a
2. A 90 amp fuse is located on the large post of the starter solenoid. This fuse is designed to protect the engine wiring harness
if an electrical overload occurs.
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b
22529
mc79977
Yellow lever style circuit breaker-typical
a - Yellow lever‑shown tripped
b - Red test button
mc74907-1
90-8M0050539 MAY 2011
eng