Asahi thermal switches frac12 disc automatic reset asahi us622axtjqe04003 a frac12 disc automatic reset type thermal switch with an opening temperature of 40c and a closing temperature of 25c this compact switch is suitable for general purpose use and is ideal for industrial commercial and domestic applications eg ovens heating units office equipment domestic appliances household goods welding machines etc asahi us622axtjqe04003 open 40c3kclose 25c4k thermal switch