Adjustable Temperature Controls
The 58T line of adjustable temperature controls from Therm-O-Disc is designed
for applications requiring accurate calibration tolerances and narrow temperature
differential. The bimetal disc design of the 58T provides instantaneous “snap-action”
contact operation, which offers excellent reliability under heavy electrical load
conditions – 277VAC, 25 amps resistive and 20 amps inductive.
The 58T cycling contacts are single pole, single throw (SPST). They can be provided to open on temperature rise and close on temperature fall, as required for electric heat applications; or to close on temperature rise and open on temperature fall, as required for ventilator fans or room air conditioners. The 58T is available with auxiliary mechanically operated contacts to provide either a double pole break in the “off” position for electric heat applications or a “fan on only” feature.
Calibration – The 58T can be calibrated at any temperature from 30°F (-1°C) to 165°F (74°C). Our preferred calibration tolerance is ±5°F (±2.8°C), with tighter tolerances available when required.
Differential – The differential is the difference between the nominal open and close temperatures. Our preferred differential is 7°F (4°C) ±5°F (±2.8°C). Tighter differentials are available at extra cost.
Range – The range is the difference between the thermostat operating temperatures measured at extremes of the set positions of the adjusting stem – full clockwise vs. full counterclockwise. The preferred range for the 58T is 60°F (35°C). For more information on calibration, differentials and ranges not mentioned above, please consult one of our sales engineers
The 58T series from Therm-O-Disc is both UL and CSA recognized.
• Tight calibration and differential tolerances provide accurate temperature control.
• Instantaneous contact separation provides excellent reliability for use in applications with heavy inductive or resistive electrical loads.
• A wide variety of mounting brackets, adjusting stems, terminals and lead wires provide excellent design flexibility.
- electric baseboard heaters
- room air conditioners
- portable and built-in electric heaters
- attic ventilator fans