© 2014 SeaStar Solutions
Optimus Installation Manual, Rev. E
6-7
6.3 Power wiring
6.3.1 PCM Wiring
The proper wire gauge must be used. See Section 4.4.2 for proper
AWG selection.
Use wire with red insulation for the positive connections and wire
with black or yellow insulation for the negative connections.
1.
Mount two 60 amp breakers, one for the port and one for the
starboard power feed to each PCM within 7 inches from the power
source. Use only circuit breakers designed for marine use, and
with corrosion-resistant, stainless steel connection hardware.
ABYC Standards require the breakers be placed close to the
batteries to protect the wires in case they are shorted. See the
Standard for complete details about the allowable wire length
and placement of the breakers as they vary depending on how
the batteries are located and protected.
crimped and soldered connector lugs must be used on all pcm
power connections.
no addItIonaL devIceS or LoadS ShouLd Be connected to
the pcm power and Ground poStS. the 60 amp fuSe couLd
Be BLown, whIch couLd reSuLt In LoSS of SteerInG controL,
property damaGe, perSonaL Injury and/or death.
do not use automatic power Selectors (apS) or selector diodes
of any kind on the pcm power or ignition wires. this functionality
is already built into the pcm.
aLL eLectrIcaL connectIonS and harneSS muSt compLy
wIth aByc wIrInG StandardS, Be rated for 105° c (221°
f), and compLIant wIth Saej1128.
2.
Run a wire from the negative terminal of the port battery to
the negative terminal of the PCM port side. Run a separate
wire from the negative terminal of the starboard battery to the
negative terminal of the PCM starboard side.
3.
Run the positive wires as shown in the diagram.
warnInG
warnInG
cautIon
cautIon