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Author Topic:   Switch wiring
Commoidore678 posted 06-10-2007 02:17 PM ET (US)   Profile for Commoidore678   Send Email to Commoidore678  
My 12v navigation lights are wired through 2 fuses of 10 amps each and into a single throw, double pole switch. I am having trouble wiring the new switch I bought. Can anyone supply tell me where I might find a wiring diagram? This is for a 100-foot ferry boat.
jimh posted 06-10-2007 03:03 PM ET (US)     Profile for jimh  Send Email to jimh     
A 100-foot ferry boat is probably a licensed craft, so it needs a licensed engineer. Check with the Chief Engineer. If he cannot figure it out, think about getting a berth on a different ship.
jimh posted 06-11-2007 12:24 AM ET (US)     Profile for jimh  Send Email to jimh     
If you are serious about the switch wiring:

The 12-volt feeds (two of them, one from each fuse) go to the two isolated switch common terminals.

The navigation lamp loads (two of them) go to the two isolated switch Normally-Open terminals.

When you operate the switch to the ON position, the common terminals are connected to the Normally-Open terminals. This connects the loads to the 12-volts feeds. This should illuminate the lamps.

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