Hello, Sorry if this has been covered before. I can't work out how the search system works on CF other than to give me resulting threads which might have hundreds of posts in it.
I am installing a new LifePo4
system and want to include a high and low voltage cutoff circuit (HVC / LVC). The issue is the power these switches take. Assuming I use two normally open contacts I have considered relays, solid state relays and contractors and surprised at the amount of power this would take.
A typical example: two relays on for 24hrs at 150mA is 7.2AH a day. This is about the power output of a 100w solar
panel for 1.5hrs.
I also looked at solid state relays which only take about 25mA on the input side but these seem to waste significant power on the output because of the heat generated by the voltage drop (e.g. with 10A running through about 15w).
Products like Tryco EV200 contactors are even worse.
The LVC / HVC circuit break system seems to need a lot of power each day. I'm I looking at this wrong?
Thanks in advance.