Eighty2Fifty1
Well-Known Member
Attached is my schematic for my ebrew setup. I hope to build it when I come back from deployment, this time next year. This is a stripped-down Kal-clone, modified for back-to-back batches. It will fire 4500W elements in keggles, ultimately going for 10-gal batches. I have a few questions about sizing of the relays and circuit breakers.
*The main power contactor will be 50A. That one I'm pretty sure about.
* On the circuit breakers (or fuses, haven't decided yet) and power relays on each branch, should they be 20, 25 or 30A? I calculate 18.75A for each element, plus a few mA required to power the individual element relays and indicator lights. I'm leaning towards 25A.
* The 2 wires actuating the SSR's and the 3 wires that go to each RTD are drawn as 1 for simplicity
* The grounds for pumps and elements will all run to the power wire's ground, like in Kal's design, they are just drawn separately for simplicity again.
View attachment b2b ebrew schematic.pdf
*The main power contactor will be 50A. That one I'm pretty sure about.
* On the circuit breakers (or fuses, haven't decided yet) and power relays on each branch, should they be 20, 25 or 30A? I calculate 18.75A for each element, plus a few mA required to power the individual element relays and indicator lights. I'm leaning towards 25A.
* The 2 wires actuating the SSR's and the 3 wires that go to each RTD are drawn as 1 for simplicity
* The grounds for pumps and elements will all run to the power wire's ground, like in Kal's design, they are just drawn separately for simplicity again.
View attachment b2b ebrew schematic.pdf