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

Product purpose

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

Intended use

Control and monitor the temperature of a freezer's defrosting heater or pump

Operating type

Disk-type bimetal snap action

Compatible standard


Mechanical Characteristics

Case material

PVC tubes
(heat resistant of 60°C or 105°C)

Operating temperature range


Connection terminal type

Two 0.75-m2 cables

Product mounting method

1 or 2 φ4.5 mounting hole(s)

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

Withstand voltage

1500 V for 1 minute
Leakage current: 10 mA or less

Insulation resistance

50 MΩ or higher with a 500-VDC megohmmeter

Characteristics Unique to This Product

  • Set operating temperature: -20 to 100°C
  • Temperature tolerance: ±5°C
  • Differential: 10K to 40K