Old as Dirt!
Join Date: Nov 2008
Location: Tampa Bay Area
Thanked 130 Times in 123 Posts
Rep Power: 7
Re: Electrical kill switch
I believe my boat originally had one or two batteries on a bank which lead to a kill switch that you pull out on a handle and do a quarter turn to lock out power. At some point this was changed to two battery banks with a typical A B Both Off switch. This still runs through the original kill switch.
I think in the future I will do some rewiring on the batteries and charging system and would like to remove this. Can anyone cite a reason such as ABYC recommendations for keeping this original kill switch or is it just overkill?
There are 3 twist switches in the port quarter cabin of the First 42. One each for each of the original batteries and a third that controlled power from either or both of the batteries to the engine starting circuit. I am not sure why one would have also installed an Off-1-2-Both switch as it offers no advantage over the original switches. Nor do I see any reason to disconnect or replace them as they--by your description-control power to the 1-2-Both switch and are/would be a positive disconnect.
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."