4100 SCB Owner’s Manual Supplement
34
Chapter 4: Wiring Schematics
Key to Electrical Symbols
Wire Color Key
Symbol Description Symbol Description
Connection (Node) Fuel Sender
No Connection Incandescent Lamp
Battery Neon Lamp
Earth Ground: Represents a black conductor that
is the same size as the colored conductor
Diode
Ammeter 12V DC Receptacle
Frequency Meter Voltmeter
Plug Motor/Pump
Breaker Current Transformer
Breaker Solenoid
Fuse Gauge
Switch: Single Pole Single Throw (SPST) Speaker/Horn/Alarm
Switch: Double Pole Single Throw (DPST) Float Switch
Lighted Switch: Single Pole Single Throw (SPST)
Color Key Description Color Key Description Color Key Description
B or BLK Black G, GR or GRN Green R or RED Red
BL or BLU Blue LT Light T or TAN Tan
BR or BRN Brown O, OR or ORG Orange W, WH or WHT White
DK Dark PK Pink Y or YEL Yellow
GY or GRY Gray PU, PUR or PPL Purple
NOTICE
• Wiring diagrams show optional equipment not installed on all models.
• Some yachts may come equipped with silver (-) and copper (+) colored speaker wires or
red/black (-) and red/white (+) port speaker wire colors; green/black (-) and green/white
(+) starboard speaker wire colors.
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