Variety of boat ignition switch wiring diagram. A question often asked on boating and boat building forums and of me by visitors to my web site is.

Key Switch Ignition 6 Wire Mercury
Boat switch wiring diagram. When you make your own wiring diagram use very large sheets of paper for clarity. Its pretty standard in boat wiring to bypass the main battery switch for one thing. The boats bilge pump float switch. When wiring this switch you can choose if youd like to illuminate it because of the independent lamp attached to terminals 8 and 7. I am running the boat battery wiring from the switch to my two batteries. It reveals the parts of the circuit as simplified shapes and also the power as well as signal connections between the devices.
Or these terminals can be ignored for non backlit switch banks. Simple boat wiring diagram single battery. I need a simple wiring diagram for a small outboard boat to wire up the lights and few other things but no one seems to have one. Equipment coming off a switchboard or circuit panel should be straightforward to trace. A wiring diagram is a streamlined traditional pictorial representation of an electric circuit. 255 time to complete.
This way even if your battery switch is off if your boat starts filling with water the pump will still kick on. Id rather have a dead battery than a swamped boat. The wiring diagram to the right will show how to wire and power this 12v 20amp on off on 3 way carling contura rocker switch.