From Mencom pre-made electrical connection cables used to supply power to and exchange signals with sensors and switches. To ilme heavy-duty connectors from 6 to 72 poles with screw or crimp contact styles (depending on pole count). Assembled connectors offer IP66 / NEMA Type 1, 2, 4X, 12 protection.
Thermal management will improve your reliability and prevent premature failure. The amount of heat output is equal to the power input, if there are no other energy interactions. There are several techniques for cooling including various styles of heat sinks, thermoelectric coolers, forced air systems and fans, heat pipes, and others. In cases of extreme low environmental temperatures, it may actually be necessary to heat the electronic components to achieve satisfactory operation.