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I have 2 charge controllers, one is 100/50 and the other is 150/60. Can I run and combine 6awg wire from both to a 100a breaker and then run a 1/0 wire from the breaker to the lynx distributor with a 125a fuse? OR do they have to remain separate? Also does a sterling b2b charger have to attach to the lynx distributor or does it really only have to connect to the house battery on the back end.
Each device should be fused/protected and isolated separately.
They can be combined after.
Your is a system design question, best directed to a local dealer/supplier. Installed according to local regulations.
Otherwise read the manuals. The guidelines are all there. Including terminal size in the tech soec section of the manual, so you can use maximum gauge wire if you want to.
A battery disconnect and/or fuse is also a good idea. It would be sized according to gauge wire based and that would be based on amps expected in the system.
