Connected to a heater, fan or other electric appliances in parallel to control temperature
Can be used as a temperature sensor.

Basic Characteristics

Product summary

Detects temperature changes
Can be installed directly to heat-sensitive parts

Product purpose

Temperature control and prevention of excessive increases in temperature of various electrical devices

Intended use

Control and monitor the temperature of heaters, fans, and pumps

Operating type

Disk-type bimetal snap action

Compatible standard


Mechanical Characteristics

Case material

Phenolic resin
(UL 94, V-0)

Operating temperature range

-20°C to 130°C
No freezing or condensation allowed

Connection terminal type

#187 tab terminal
Solder terminal

Product mounting method

2 φ1.5 mounting holes
28-mm pitch

Electrical Characteristics

Circuit diagram

A contact or b contact

Rated voltage

AC 125/250V

Rated capacity


Contact withstand current


Contact withstand count

10,000 times or more

Characteristics Unique to This Product

  • Set operating temperature: -20 to 130°C
  • Temperature tolerance: ±5°C
  • Differential: 10K to 40K