I am using the L-R-Both-Start ACS510 switch.
What size fuse should I place between the power bus and the switch?
Wires to P Leads, starter and ground are 20AWG which would indicate a 5A fuse would work.
What thinks you all?
I did some testing on my install and the basic ford starter relay that most of us use drew around 4 amps. It is likely that it has an inrush current higher than that, so steer clear of fast blow or electronic fuses too close to that number.
Agree.With the load of the starter pulling the line voltage down during cranking, would the increased amp draw be too much for the 3A fuse.
Hey Larry -
How is your starter circuit wired?
A.) Buss -> CB -> ACS 501 -> ES 24021 "S" Terminal.
B.) Buss -> CB -> ACS 501 -> ES 24021 "S" Terminal -> ES 24021 "I" Terminal" -> PMGR Solenoid?
I just had a little bit of a panic - mine is now wired as example B, which I think means I'm pulling current for the starter Relay as well as the PMGR through the CB and the switch. Looking for internal relay schematics to confirm wiring on the "I" terminal....
With the load of the starter pulling the line voltage down during cranking, would the increased amp draw be too much for the 3A fuse.
The I terminal is a direct patch to the contact disk and will provide +12V AFTER the contactor closes; No resistance added on this output (just a copper strip). The I term draws from the Batt feed and NOT the S term feed, so no panic necessary. What I did: Batt->CB->mom. switch->S terminal. Grd side is from frame. In my test, I went batt to VOM to S term and got around 4 amps. Not a precise activity and don't remember the exact current. Pretty confident mine was off shore stuff and not an actual Cole Hersee, so that may explain the higher current.
I am using the L-R-Both-Start ACS510...
Wires to P Leads, starter and ground are 20AWG which would indicate a 5A fuse would work.
What thinks you all?
Don't know what others do here, but I have never fused these leads. Remember, open circuit means hot mag... blown (or broken) fuse would create an open circuit!
Unless you are using the L,R positions for something else??