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

58T Adjustable Bimetal Control

The 58T is an  adjustable temperature control designed for applications requiring accurate calibration tolerances and narrow temperature differential. The snap action of the bimetal disc provides high-speed contact separation resulting in excellent life cycle characteristics at electrical loads up to 25 amps at 277VAC. It is available with contacts normally closed for electric heat applications, and contacts normally open for air conditioning and fan applications. Typical applications include electric baseboard heaters, portable and built-in electric heaters, attic ventilator fans and room air conditioners.

Features
  • Single pole single throw
  • Available with auxiliary mechanically operated contacts to provide double pole break in the “off” position for electric heat or a “fan on only” feature
  • Mechanical positive off prevents contacts from closing regardless of ambient temperature
  • Quick connect terminals or lead wires
  • Variety of mounting brackets and adjusting stems
Temperature Calibration
  • Maximum calibration temperature
    • 150°F (65.5°C)
  • Temperature  differential (difference between nominal open and close temperatures) available
    • 5°F (3°C)
  • See data sheet (Product Download Tab) for detailed temperature calibration information
Applications
  • Air Conditioning
  • Heating
Agency Ratings
  • UL /CSA
    • 277 VAC/ 25 amps resistive; 20 amps FLA; 100,000 cycles
  • See data sheet (Product Download Tab) for detailed ratings information