1)Din Rail Enclosure Thermostat NO,NC & NO+NC 2)High Switching Capacity 2)With CE & CQC 3)The Most Comparative Price. Din Rail Enclosure Thermostat,Mechanical Thermostat,Electronic Thermostat,Panel Thermostat. Thermostat (normally closed); contact breaker for regulating heaters.Thermostat (normally open); contact maker for regulating of filter fans and heat exchangers or for switching signal ...