Thermistor protection relay Used for giving fool proof protection against overheating alongwith PTC thermistor Uses the signal of ptc thermistors and switches off the equipment to be protected when dangerous temperature is attained Available with large variety of input supply voltages for the convinience of the user The relay is din rail mounting type Weight is approximately 200 gms Dimensions (h x w x d): 77 x 30 x 115 mm