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Phason MTC-3C Modulating Temperature Control

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The Phason MTC-3C Modulating Temperature Control allows you to automatically control ventilation fans according to the ambient temperature.

How It Works

  • When the temperature is at or below the temperature set point, the MTC-3C operates the fans at the idle speed setting
  • When the temperature exceeds the temperature set point, it increases the speed
  • When the temperature increases 6° F above the temperature set point, the MTC-3C increases the speed to maximum

Ideal for hog, poultry, dairy, greenhouse, or light industrial buildings.


  • 1 variable speed output
  • Adjustable 40° F to 90° F temperature set point
  • Fixed 6° F temperature differential
  • Adjustable idle speed for automatic mode
  • Automatic and manual modes
  • 1' temperature probe, extendable to 500'
  • Overload protection fuse
  • Rugged enclosure (corrosion-resistant, water-resistant, and fire retardant)
  • CSA approval
  • 2 year limited manufacturer warranty
  • Weight: 2 lbs

Electrical Ratings

  • Input: 120/230 VAC, 60 Hz
  • Variable Stage:
    • 10 A at 120/230 VAC, general-purpose (resistive)
    • 7 FLA at 120/230 VAC, PSC motor
    • 1/2 HP at 120 VAC, 1 HP at 230 VAC, PSC motor
  • Fuse: 15 A, 250 VAC, ABC-type ceramic

For the 8.5 A MTC-3C model, seeQC Supply Part #11748

Phason KMTC-3C Display and Power Board Kit is also available,QC Supply Part #10006-A.

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