Asahi Keiki Co., Ltd. specializes in manufacturing high-quality bimetal thermostats, which use bimetal strips to sense temperature and control electrical contacts. Since 1950, Asahi Keiki has built expertise in producing reliable thermostats for a wide range of applications, contributing to safer and more comfortable living environments. Our thermostats are widely used in household appliances, industrial equipment, and automotive products, such as coffee machines, electric irons, air conditioners, water boilers, heaters, and automotive seat/handle heaters. They can regulate temperatures on various surfaces and even in water. Asahi thermostats are certified by UL, C-UL, VDE, CSA, TUV, CQC, CMJ, and RoHS, and meet ISO 9001, ISO 14001, and IATF 16949 standards.
Asahi Thermostat Models:
US-638 Thermostats
- Ultra-thin design at 5.1mm thick
- Snap-action contacts
- Calibrations from 30°C to 100°C
- Ideal for high-volume applications
US-630 Thermostats
- Low-profile snap-action control, 6.1mm thick
- Optional built-in thermal fuse for added protection
- Calibrations from 0°C to 120°C
US-622 1/2″ Disc Thermostats/Thermal Cut-Outs
- Versatile, compact design
- Calibration range: +10°C to +185°C
- Handles loads up to 16A/250VAC
US-625 Ceramic 1/2″ Disc Thermostats
- High-temperature control up to 260°C
- Available as thermostat or thermal cut-out
- Calibration range: +10°C to +260°C
US-603 1/2″ Disc Manual Reset Cut-Outs
- Provides reliable non-cycling thermal protection
- Temperature range: 50°C to 160°C
- Suitable for loads up to 10A/250VAC
US-118 Hermetic Thermostats
- Hermetically sealed for moisture resistance
- Calibration range: 0°C to 250°C
- Contact ratings: 3A/125VAC or 1A/24VDC
US-628 Waterproof Thermostats
- Encapsulated, IP67-rated waterproof design
- Automatic reset with normally-open or normally-closed contacts
- Maximum operating temperature of 130°C
US-802 TO-220 Miniature Thermal Switches
- Compact thermal switch for heat-sink and power monitoring
- TO-220 case with M3 mounting hole
- Temperature range: 40°C to 120°C, available in 5K steps
Asahi thermostats offer reliable temperature control solutions across various industries, ensuring safety and efficiency in numerous applications.