Heat Interface Unit – Control Platform

Heat Interface Unit – Control Platform


Technology: Electronic Controls

Product Category: Bi-metal

Application: Appliance

Brand: Pactrol


The Heat Interface Unit (HIU) controller is designed for the efficient operation of heating and hot water in the properties connected to a district heat network. The smart communication interface allows for integration into the building management system.



  • Fuel Type
  • Communications
  • Hot Water
  • Modbus, Mbus, OpenTherm
  • Accurate and Efficient Heating and Hot Water Control
  • Smart communications interface
  • Heating Flow and Return Control
  • Water Pressure Sensor Interface
  • Outside/Room Temperature Compensation
  • OpenTherm Room Stat Interface

Agency Ratings

(consult catalog for details)


Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.

48T Auto Reset Bi-metal Controls

48T Auto Reset Bi-metal Controls


Technology: Safety limits and Controls

Product Category: Bi-metal

Application: Automotive

Brand: Therm-O-Disc


The 48T series line of bi-metal temperature switches provide high contact speed separation resulting in exceptional life characteristics.

  • Function:
  • Max Calibration:
  • Max Electrical Amperage:
  • Moisture Resistant Auto Reset
  • 150°C / 302 °F
  • 10
  • Low internal resistance
  • Vibration resistant construction provides high reliability
  • Surface, airstream or stud mounting configurations
  • Large selection of terminals and lead wires

Agency Ratings

(consult catalog for details)

  • Catalog
    44T, 48T Auto Reset Bimetal Controls Product Specfications
    Read More
  • DO NOT DELETE OR UNPUBLISH - Test Resource
    Read More

Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.

36T Manual Reset Bi-metal Control

36T Manual Reset Bi-metal Control


Technology: Safety limits and Controls

Product Category: Bi-metal

Application: Appliance, HVAC

Brand: Therm-O-Disc


The 36T manual reset control from Therm–O–Disc® offers proven reliability in a compact, versatile, cost–effective design. The snap-action of the bimetal disc provides high-speed contact separation resulting in excellent life cycle characteristics at electrical loads up to 15amps at 120VAC, and 10 amps at 250VAC.

  • Function:
  • Max Calibration:
  • Max Electrical Amperage:
  • Manual Reset
  • 177°C / 350°F
  • 15
  • Non-trip free design
  • Minimum manual reset -31°F (-35°C)
  • Enclosed or exposed disc
  • Plastic or ceramic construction
  • Conical or gold contacts available

Agency Ratings

(consult catalog for details)

  • DO NOT DELETE OR UNPUBLISH - Test Resource
    Read More

Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.

69T Biased Auto Reset Bi-metal Control

69T Biased Auto Reset Bi-metal Control


Technology: Safety limits and Controls

Product Category: Bi-metal

Application: Appliance, HVAC

Brand: Therm-O-Disc


The 69T line of 3/4” (19mm) bi-metal disc temperature controls from Therm–O–Disc® offers multiple temperature operations in a unique, cost effective design. The snap-action bi-metal disc provides high speed contact separation resulting in exceptional life characteristics at electrical loads up to 25 amps at 240 VAC. By utilizing heaters mounted internally, the open or close calibration of the bi-metal disc can be biased lower. The 69T is a cost-effective alternative in applications where multiple temperature control is required.

  • Function:
  • Max Calibration:
  • Max Electrical Amperage:
  • Biased Auto Reset
  • 112°C / 233°F
  • 25
  • Available in automatic reset single pole, single throw and single pole, double throw switch configurations
  • Enclosed or exposed disc
  • Wide variety of terminals

Agency Ratings

(consult catalog for details)

  • Catalog
    69T Internal Heater Biased Temperature Controls Product Specifications
    Read More
  • DO NOT DELETE OR UNPUBLISH - Test Resource
    Read More

Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.

49T High Temperature Bi-metal Control

49T High Temperature Bi-metal Control


Technology: Safety limits and Controls

Product Category: Bi-metal

Application: Appliance, HVAC

Brand: Therm-O-Disc


The 49T series of controls from Therm-O-Disc® offers proven 3/4” (19mm) bi-metal disc reliability in a high temperature package.

  • Function:
  • Max Calibration:
  • Max Electrical Amperage:
  • High Temp Auto Reset or Fuse
  • 288°C / 550°F
  • 25
  • #8 screw terminals
  • Contacts open or close on temperature rise
  • Enclosed or exposed disc available

Agency Ratings

(consult catalog for details)

  • Catalog
    49T, 49F Snap Action Temperature Controls Product Specifcations
    Read More
  • DO NOT DELETE OR UNPUBLISH - Test Resource
    Read More

Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.

64T Auto Reset Bi-metal Control

64T Auto Reset Bi-metal Control


Technology: Safety limits and Controls

Product Category: Bi-metal

Application: HVAC

Brand: Therm-O-Disc


The 64T is a 3/4 inch bi-metal double pole single throw control that breaks two separate circuits simultaneously. The snap-action of the bi-metal disc provides high-speed contact separation resulting in excellent life cycle characteristics at electrical loads up to 25 amps at 240 VAC. It is used in both electric heat and appliance applications where double pole single throw switching is desirable.

  • Function:
  • Max Calibration:
  • Max Electrical Amperage:
  • Double Pole Auto Reset
  • 177°C / 350°F
  • 25
  • Enclosed or exposed disc
  • Variety of terminal configurations
  • Surface and airstream mounting configurations

Agency Ratings

(consult catalog for details)

  • Catalog
    64T, 64F Temperature Controls Product Specifications
    Read More
  • DO NOT DELETE OR UNPUBLISH - Test Resource
    Read More

Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.

44T Auto Reset Bi-metal Controls

44T Auto Reset Bi-metal Controls


Technology: Safety limits and Controls

Product Category: Bi-metal

Application: Appliance, HVAC

Brand: Therm-O-Disc


The 44T series line of bi-metal temperature switches provide high contact speed separation resulting in exceptional life characteristics.

  • Function:
  • Max Calibration:
  • Max Electrical Amperage:
  • Moisture Resistant Auto Reset or One-Shot Fuse
  • 149°C / 300 °F
  • 1
  • Low internal resistance
  • Vibration resistant construction provides high reliability
  • Available in one-shot fuse type (44F)
  • UL Agency Recognition

Agency Ratings

(consult catalog for details)

  • Catalog
    44T, 48T Auto Reset Bimetal Controls Product Specfications
    Read More
  • DO NOT DELETE OR UNPUBLISH - Test Resource
    Read More

Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.

60T Manual Reset Bi-metal Control

60T Manual Reset Bi-metal Control


Technology: Safety limits and Controls

Product Category: Bi-metal

Application: Appliance, HVAC

Brand: Therm-O-Disc


The 60T manual reset control from Therm–O–Disc® offers proven reliability in a compact, versatile, cost-effective design. The snap-action of the bi-metal disc provides high-speed contact separation resulting in excellent life cycle characteristics at electrical loads up to 25 amps at 240 VAC. The 60T carries global agency recognition and is used in many major appliances and HVAC applications.

  • Function:
  • Max Calibration:
  • Max Electrical Amperage:
  • Manual Reset
  • 177°C / 350°F
  • 25
  • Agency approved “M2” trip free manual reset
  • Enclosed or exposed disc
  • Variety of terminal configurations
  • Surface and airstream mounting configurations

Agency Ratings

(consult catalog for details)

  • Catalog
    60T Snap Action Temperature Controls Product Specifications
    Read More
  • DO NOT DELETE OR UNPUBLISH - Test Resource
    Read More

Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.

36T Auto Reset Bi-metal Control

36T Auto Reset Bi-metal Control


Technology: Safety limits and Controls

Product Category: Bi-metal

Application: Appliance, HVAC

Brand: Therm-O-Disc


The 36T auto reset control from Therm–O–Disc® offers proven reliability in a compact, versatile, cost-effective design. The snap-action of the bimetal disc provides high-speed contact separation resulting in excellent life cycle characteristics at electrical loads up to 15 amps at 120VAC, and 10 amps at 250VAC.

  • Function:
  • Max Calibration:
  • Max Electrical Amperage:
  • Auto Reset
  • 220°C / 428 °F
  • 15
  • Global agency recognition
  • CTI 250 construction available
  • Enclosed or exposed disc
  • Plastic or ceramic construction
  • Conical or gold contacts available

Agency Ratings

(consult catalog for details)

  • Catalog
    36T Snap Action Temperature Controls Product Specifications
    Read More
  • DO NOT DELETE OR UNPUBLISH - Test Resource
    Read More

Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.

60T Auto Reset Bi-metal Control

60T Auto Reset Bi-metal Control


Technology: Safety limits and Controls

Product Category: Bi-metal

Application: Appliance, HVAC

Brand: Therm-O-Disc


The 60T auto reset control from Therm–O–Disc® offers proven reliability in a compact, versatile, cost-effective design. The snap-action of the bi-metal disc provides high-speed contact separation resulting in excellent life cycle characteristics at electrical loads up to 25 amps at 240 VAC. The 60T carries global agency recognition and is used in many major appliances and HVAC applications.

  • Function:
  • Max Calibration:
  • Max Electrical Amperage:
  • Auto Reset
  • 177°C / 350°F
  • 25
  • Single pole, single throw or single pole, double throw
  • Enclosed or exposed disc
  • Variety of terminal configurations
  • Surface and airstream mounting configurations

Agency Ratings

(consult catalog for details)

  • Catalog
    60T Snap Action Temperature Controls Product Specifications
    Read More
  • DO NOT DELETE OR UNPUBLISH - Test Resource
    Read More

Find a Distributor

Sensience's trusted distributors provide access throughout the world to our selection of the highest quality products and services.