HH12ZB250 Heater Limit switches suitable for Series: 036080, 048080350 Series: 350 036080, 350 048080373 Series: 373 024055, 373 024055383 Series: 383 KAD 060100, 383 060110; Simultaneously suitable for 345 series: 345 036080, 345 048080355 series: 355 042060 and other models The HH12ZB250 high temperature limit switches is a critical overheat protections component designed specifically for stove, featuring a 3inch plug-in structure. Its cores function is to automatically cut off the circuit when the furnaces temperature reaches 250℉, equipment from being damaged due to overheating; Automatically close and resume normal operate when the temperature drops to 210℉. Designed to protect your furnaces from overheating, it can effectively damage to the machine systems and ensuring the safe operate of the furnaces and fan. By replacing a new limit switches, you can avoid circuit failures and heating interruptions caused by a faulty limit switches. Keep warm in the colder season.