Just out of curiosity: How big would a power supply have to be to drive a JBC C245?
And how would it be wired into the T12 controller? I think I've read somewhere that it can't just be connected to the T12 connector but needs a modification to separate the thermocouple sensing, right? Can the existing FET handle the increased current or would I have to replace it? How do you handle the missing NTC? Or does the C245 handle actually have a NTC inside it?
I first connected the 6 Ampere power supply unit (tested, it actually gives out 6 Amperes), but this is not enough, the power supply protection is triggered. Then I plugged in the 12.5 Amp power supply, it works well.
The T12 thermocouple is connected in series with the heater, the C245 has a separate thermocouple lead, therefore, for example, the KSGER controller v. 2.1s has a jumper that needs to be switched to use the JBC tips. As in other controllers, I don't know.
In the KSGER controller in v. 2.1s installed MOSFET TPC8107 with a maximum drain current of 13 Amperes. The C245 heater has a resistance > 2 Ohms, so the current through it cannot exceed 12 amperes. Therefore, there is no need to replace MOSFET. I use homemade controllers similar to KSGER v. 2.1s, but MOSFET installed IRF9310, which has a maximum drain current of 20 Amps.