Asahi Keiki

Asahi US-638 thermostats are thinner versions of the US-630 at only 5.1mm thick.  The US-638 is designed for high-volume applications where cost and reliability are the main design criteria.

• Only 5.1mm thick, insulated case
• Snap-action contacts
• Calibrations from 30°C to 100°C

Asahi US-630 thermostats are low-profile snap-action controls which are only 6.1mm thick.  They can be supplied fitted with an integral thermal fuse to offer ultimate in combined control and protection.

• 6.1mm thick plastic case
• Snap-action contact operation
• Calibrations from 0°C to 120°C

The Asahi US-622 disc thermostat is the workhorse control in the range.  Compact, high quality and competitively priced thermostats which can also be configured to operate as thermal cut-outs.

• Calibration range: +10°C to +185°C (T200 housing)
• Loads up to 16A/250VAC
• Control, cut-out and one-shot options

Asahi US-625 ceramic 1/2″disc thermostats offer high temperature control upto 250°C range.  By choosing a narrow or wide differential, the US-625 can either be a thermostat or a thermal cut-out.

• Calibration range +10°C to +250°C (T260 housing)
• Automatic reset (N/O, N/C contact options)
• Loads up to 10A/250VAC

Asahi’s US-603 manual reset thermal cut-out provides superior non-cycling thermal protection.  Various fixings and terminal types means the US-603 is a versatile thermal protector.

• Temperature range: 50°C to 160°C
• Non-cycling thermal protection
• Switches loads up to 10A/250VAC

Asahi US-118 hermetically-sealed thermostats are ideal for high-specification applications and are totally moisture resistant.  Available with calibrations from 0°C to 250°C and various mounting flanges.

• Hermetically sealed disc thermostats
• Temperature set-points; From 0°C to 250°C
• Contact ratings; 3A/125VAC (1A/24VDC)

ASAHI US-628 disc thermostats are encapsulated, waterproof versions with integral lead-wires.  They have an automatic reset function and are available with normally-open or normally-closed contacts.

• IP67 rated drip-proof housing
• Max operating temperature 130˚C
• Loads up to 5A/250VAC

The Asahi US-802 miniature thermal switch offers a neat solution for heat-sink and power component monitoring applications. Both normally-closed and normally-open contact types are readily available.

• TO-220 case, M3 mounting hole
• N/C and N/O contact options
• Range 40°C to 120°C in 5K steps