toggle switch
Thread Starter
Burning Brakes
Joined: Aug 2000
Posts: 751
Likes: 32
From: Woburn,ma ma
toggle switch
is there, a certain amperage switch i need to us, it would be for an electric fan, and another for an electric pump. i have a thermostat controlled fan, but the damm thing didn't turn on at 210 it's suppose to turn on at 195, it doesn't hardly see over the 200 but i got onit hard the other day and it didnt want to come down
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Re: toggle switch (madvette74)
Don't use switches to turn fans and fuel pumps on. Use relays. Relays are under $5 CDN, handle 30 amps easily and last forever. Use switches to turn on the relay. Swithches can't handle alot of power for long.
The relay is hooked to a heavy live line then to the fan or fuel pump. The switch handles very small current and is used only to energize the relay.
The relay is hooked to a heavy live line then to the fan or fuel pump. The switch handles very small current and is used only to energize the relay.
Burning Brakes
Joined: Apr 2003
Posts: 1,071
Likes: 2
Re: toggle switch
Don't use switches to turn fans and fuel pumps on. Use relays. Relays are under $5 CDN, handle 30 amps easily and last forever. Use switches to turn on the relay. Swithches can't handle alot of power for long.
The relay is hooked to a heavy live line then to the fan or fuel pump. The switch handles very small current and is used only to energize the relay.
The relay is hooked to a heavy live line then to the fan or fuel pump. The switch handles very small current and is used only to energize the relay.
Ryan
(Shhh -- Electrical Engineer)
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: toggle switch (norvalwilhelm)
Don't use switches to turn fans and fuel pumps on. Use relays. Relays are under $5 CDN, handle 30 amps easily and last forever. Use switches to turn on the relay. Swithches can't handle alot of power for long.
The relay is hooked to a heavy live line then to the fan or fuel pump. The switch handles very small current and is used only to energize the relay.
The relay is hooked to a heavy live line then to the fan or fuel pump. The switch handles very small current and is used only to energize the relay.
Burning Brakes
Joined: Apr 2003
Posts: 1,071
Likes: 2
Re: toggle switch (GrandSportC3)
I have my fans directly wired to the switches... however - I agree that using relays is the batter way to run the fans..
Ryan
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Re: toggle switch (reidry)
Any parts store has 30 amp relays for under $5. Why bother with military stuff? These cheap plentiful relays are easy to mount, easy to wire, can do the job and use a cheap switch on the dash or where ever to activate the relay. This system will last forever, no so with switches.
