Wiring up Blowsion bilge switch, only 3 wires?

[bored&stroked]

The instructions included with my rotary 3 position bilge switch tell you how to wire it up, except there are 4 wires in the instructions [black, gray, white and red]. The switch only has 3 wires, which are blk, gray and white. So now I'm a bit confused which wires are for what on this switch. Any ideas?

 

[Vortex]

Black is ground.
One color is on when the switch is in left position. Other color is on in right position of switch.

 

[orangefinger]

u can wire it to be on when engine runs switch one position or on battery switch other position....

 

[motobehrens]

Do the wires have bullet connectors on them? The male connector is wired to 12v, and the female connectors are your outputs. Pick one wire with the female connector, and wire it to your bilge. Or, use an ohm meter to figure out which wire correlates to the switch position left of center(off) or right of center(off)

 

[smoofers]

If you want to get fancy you can do what I did. Use a diode and wire it up so that left on the switch turns on one pump and right turns on both...

 

[bored&stroked]

Thanks for the info guys. Pretty simple once you know what each wire does lol

 

[flo_w]

fancy diode and wire it up so that left on the switch turns on one pump and right turns on both...

That's the way to go...do you have a diagram for that?

 

[smoofers]

 

[flo_w]

Sweet, thanks. That was quick! Should work the same if i want to switch the ground?

 

[smoofers]

Sweet, thanks. That was quick! Should work the same if i want to switch the ground?

Yeah, it’ll work the same, I actually have mine wired that way (switching ground). Used solder and heat shrink and my switch and pumps still work like new after 10 years.

Edit: FYI a diode is basically a one way valve for current, if you look at it that way the diagram should make more sense. Just make sure you use a 2 amp or larger diode.

 

[MX952]

Tidy Bilge is super slick and clean if you’re keen to change the wiring.


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