Therm-O-Disc > Products > Bimetal Controls & Limits

39T Moisture Resistant Bimetal Control

The 39T auto reset bimetal control from Therm-O-Disc® offers proven reliability in a moisture resistant design. The snap action of the bimetal disc provides high-speed contact separation resulting in excellent life cycle characteristics at electrical loads up to 10 amps at 120VAC and 5 amps at 250VAC, for temperature calibrations up to 221°F (105°C).  The 39T carries global agency recognition, CTI 250, and is used in applications such as residential refrigeration and heat pumps.
Features
  • Single pole, single throw
  • Contacts open or close on temperature rise
  • Tube mount configuration
  • Wide variety of lead wire options available
  • Gold contacts available
Temperature Calibration
  • Maximum calibration temperature
    • 221°F (105°C)
  • Temperature differentials (difference between nominal open and close temperatures) available
    • Minimum 15°F (8.5°C)
    • Maximum 80°F (44.5°C)
  • See data sheet (Product Download Tab) for detailed temperature calibration information
Applications
  • Heat Pump
  • Residential Refrigeration
Agency Ratings
  • UL/CSA
    • 120V/10 amps/30,000 cycles
    • 240V/5 amps/100,000 cycles
  • CB
    • 250V/5 amps/30,000 cycles
  • See data sheet (Product Download Tab) for detailed ratings information