Anti-Condensation Heaters are with simple and highly reliable DIN rail mounting is designed for two fundamental applications. Firstly, to maintain the temperature of an electrical enclosure at a level suitable for the components contained within. In principle this tends to be for frost protection by keeping the internal ambient temperature above freezing. Secondly to maintain the temperature inside of an enclosure several degrees above surrounding ambient temperature and above the dew point. This will eliminate condensed water vapor contained inside an enclosure.