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Old 03-25-2012, 09:56 PM   #1
Scooby Specialist
Member#: 225024
Join Date: Sep 2009
Location: San Diego, CA, USA, Earth, ...
2002 wrx

Default IC spray wiring

im planning on adding an IC spray to my 2002 wrx.
I will use a pressure activated switch with a common, normally open, and normally closed.
there will be a manual spray switch in the car.
i would also like to add in an led as an indicator when the pump is running.
im going to use the washer pump to spray the ic.

the pressure switch has this info written on it, in this order:
15.1A 1/2 hp 125, 250, 277 VAC
1/2A 125 VDC; 1/4A 250 VDC
L215 5A 125 VAC L

what im most unsure of is how and where to protect this circuit.Update: Product website says 10Amp
from the print on the switch, i think i should use a 1/2Amp inline fuse between the battery and the pressure switch. is this correct? if not, how do i determine where and how much protection is needed? i dont know the draw from the pump but its a standard subaru rear window washer pump.

here's my thought as a drawing:


Last edited by alx8283; 06-21-2012 at 12:24 PM. Reason: added a relay because i learned something
alx8283 is offline   Reply With Quote

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