Hi, My controllers are running at high temperature i think. What is the max temperature before they shout down, or break? At the moment PLC1: 66c, PLC2: 64c and PLC3: 59c
I have cooling fan in the cabinets, but at the moment the Thermostat is set to 35c, and the fan isn’t on… - Emil
Hi Emil, The only guidance we have on temperature is from the user manual. For example, for the AXC F 1152 and 2152: 
As you know, these are ambient temperatures, not the board temperatures inside the PLC. Unfortunately we are not able to give any advice on the board temperature values. ~ Martin. (ref: 00121724)