Asahi thermal switches frac12 disc automatic reset asahi us622axtlqe15005 a frac12 disc automatic reset type thermal switch with an opening temperature of 20c and a closing temperature of 10c this compact switch is suitable for general purpose use and is ideal for anti condensation applications such as cctv cameras and for industrial commercial and domestic applications eg ovens heating units office equipment domestic appliances household goods welding machines etc asahi us6