How many amps for fuel pump switch
#3
Melting Slicks
If it is a hi amp draw pump use the switch to activate a relay (with 20A fuse directly to the battery). Then any ole switch can activate the relay AND a full 12V goes to the pump!
It is also not a good idea to run a lot more current thru the ign switch circuit!
It is also not a good idea to run a lot more current thru the ign switch circuit!
Last edited by mikem350; 10-14-2006 at 11:14 PM.
#4
Melting Slicks
Thread Starter
Thanks, the plan is to either take power from the Batt from the maxi fuse or the batt post on the ign switch to the toggle (20 amp) through the relay then the pump.
#7
Melting Slicks
Use a relay
Originally Posted by vstol
Thanks for your responses. I used a hot wire to the switch then to the relay, it should work fine.
bad idea to run that much current through a switch, should be on a relay.