I'm converting an existing sauna room to infrared. It currently has one 240/30A circuit. I have two heaters and one power supply/controller. Before purchasing I believed the power supply would handle powering both heaters from one on input side, but now I know two circuits are needed (PS has 4 inputs/4 outputs)
Each heater is 13A. Rather than run a 2nd circuit from the subpanel (would be difficult), I am hoping to add a small sub panel to split the 30A into two 15A circuits. The 30A is already coming from a subpanel but I wouldn't be making any changes there.
So L1/N1 - L4/N4 on input side, L10/N10 - L40/N40 on output side 240v/30A coming in. I'm getting from this conversation that I'll need to replace the feed side 30A breaker with a 40A or 50A?