stinkypinky1011

im planning on adding a few kill switches in my car i found a few write up. where they use a relay a toggle switch, can i add a fuse to it so if by some reason the kill switch wire get overloaded it blow the fuse n dosent fry anything else? or is it a waste of time? n if i can add the fuse where do i connect it to?

Freemananana

iTrader: (3)

Whoa. You are a little confused. The relay SHOULD act as a fuse also. The black square relay does this at least. You can add an additional fuse to the system. The relay goes to a toggle switch, correct? Run an inline fuse to the switch.



That's a cheap inline fuse you can find at walmart. So you would follow your write up to the T. But where they put the toggle switch, you just add the fuse between one connector on the switch and the wire that goes to the switch.

Too easy.

stinkypinky1011

thanks

99teggsr

Technically a relay does not act like a fuse, more like an electronically activated switch. But adding a fuse to the switched power to the relays coil wouldnt be a bad idea, like freemanana said

Freemananana

iTrader: (3)

Maybe I had something special or read it wrong (or am remembering it wrong) but I thought I had a couple relays that were somehow like a fuse. I understand that a relay is like a switch though. There is never harm in adding a fuse.

stinkypinky1011

for the switch itself how many amps should i get it.???

Freemananana

iTrader: (3)

What is this kill switch killing? I would get the same AMP fuse as the device it is controlling. Let say your fuel pump uses a 15A fuse. This switch is ran inline with the fuel pump. I'd put a 15A inline with this switch so it's the same as the device. If you go lower than what the device is using it will pop prematurely. If you go over, it will be useless because the actual fuse for that item will go first. Hope that makes sense.

4drEF

The inline fuse is pretty much a useless idea.

Lets say you put the relay in line with the fuel pump. well, the fuel pump already has a fuse, right? So you aren't gaining anything by adding another fuse.

Just tap power from fused sources and you don't need more fuses.

Freemananana

iTrader: (3)

Yeah. I was just going with his idea.

zrickety

iTrader: (1)

If you wanted to use the fuse AS the toggle switch, that's an interesting idea. You could have a blown fuse to put in it's place and it would take awhile to figure that out.

Freemananana

iTrader: (3)

bwahaha! Just like me taking my ostrich off of the plug for the night? Mwuahaha

stinkypinky1011

ok so let me clear it up a lil.. i bought a 18g wire n two relays.. i plan on installing a fuel cut n ignition kill so wen i turn the key everything on the dash will light up but the car wont start.ok..wen i went to the auto part the switches were all different amps. so wat amp switches will i need to do this^

Freemananana

iTrader: (3)

Hmmm. I have a set of 10A switches that I use for everything and have never had problems. I used one for my CEL light. I've used them for my accessory power on my baja bug and I used the same switches to run the lights. Any switch SHOULD work really.

zrickety

iTrader: (1)

If you're using the switches with relays, they should only be powering the coils. Any amp will work for that.

4drEF

The relay amperage is what you need to be concerned with. It has to handle or exceed the amperage of the circuit you are cutting into.
For your switch(es), use a switched ground to trigger rather than +voltage.

stinkypinky1011

thanks

stinkypinky1011

Will this switch work for a fuel kill
http://item.mobileweb.ebay.com/viewi...d=231052626072

lazlong

If the fuel pump is run on a 15 amp circuit, then yes.

stinkypinky1011

So dose anyone know if this will work for sure or what amp current runs the pump

muhammadki

It has to handle or exceed the amperage of the circuit you are cutting into.

stinkypinky1011

I know that's what I'm trying to find out. I don't know

ricebike

they gave you the answer earlier...


and i quickly googled it for you to verify your fuse for the fuel pump is 15 amps

https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/fuel-pump-fuse-3007691/

if it looks like #37 on the fuse block as illustrated in the thread i linked, you're good to go!