Operation:
It plugs into my NEMA 5-50R Outlet (welder's outlet). Obviously, the main breaker switch turns everything on and off. For active power indicators it has orange lamps that show when 120v on each input leg is active and the cooling fan spinning with blue LEDs should indicate good 12v power supply. There is a kill switch (with the green indicator LED) that stops all control input voltage to the SSR so all outputs can be shut off completely without turning off the whole box. Wiring selection was 10ga for all the high amperage with 16g-22ga powering all the control and indicators (all of the 16-22ga stuff is fused at 1A.). The relay is actually a 4 pole independently controlled zero-crossing SSR. I would have preferred a bigger 40A relay, but this one is pretty swanky and can shut off both hots to both outlets and it was FREE... so I have the 25A breaker and fan cooled heatsink to protect and help it. The 3-position knob controls which output is active and only one is active at any given time; 120V Plugs (full power) or 240V plug (full power) or 240 (regulated with Auberin DSPR1). Ultimately, the path to the boiler will be a NEMA L6-30P connector with a SOOW 10/4 cable and a Camco 5500W ULD Ripple Element in a Brewer's Hardware Sanitary Adapter.
My biggest concerns are:
1) I only have a 25A Breaker on the main switch (because the SSR is only a 4x25A relay). At max power it should be pulling about 23 amps and spirit runs could be 6-9 hours long.
2) Even though I have 10/4 SOOW cabling, my 6-50R outlets are both 3-prong. This is not a problem on the boiler side since the heating element only has 3 terminals (I'll just leave the neutral unused). But some of the electronics in the box do have a ground and a neutral so I just tied the ground and neutral bars together and the cable going to the wall outlet will only have a ground connected (again, leaving the neutral unconnected). Is this problematic?
