Bimetal Thermostats

Bimetal Thermostats, which regulate the temperature inside heating pads, blankets, and medical pads, are used in any case where the applications need control for a low temperature.

Bimetal Thermostats use two different kinds of metal to regulate the temperature setting. When one of the metals expands more quickly than the other, it creates a round arc, like a rainbow. As the temperature changes, the metals continue to react differently, operating the thermostat. This opens or closes the contact opener, turning the electricity on or off as needed. Accuracy and efficiency are important for bimetal thermostats.

At Calco Electric, we have a variety of bimetal thermostats for your selection:

  • ½” Snap Action Bimetal Disc Thermostat: HB-2 is compact, reliable, and cost-efficient. It is also compact with its ½” design.
  • ¾” Snap Action Bimetal Disc Thermostat: HB-7 uses snap action to create high-speed contact separation, giving you a versatile, cost-efficient method of regulating temperatures.
  • AMT-P1 Series Bimetal Thermostat provides more reliable, safe protection for your circuits. It uses an open frame design for efficiency.
  • High Temperature Bimetal Thermostat: H702 can control temperatures reaching 400°C; typical disc thermostats can’t handle temperatures over 230°C because of a refractory issue.
  • JUC 31F Series TO-220 PCB-Bimetal Disc Thermostat meets RoHs standards. As a snap action SPST bimetallic thermostat, it gives accurate regulation for one device. We are the only company that provides low-temperature regulation reaching 0C (32F).
  • Narrow Differential Bimetal Thermostat: HB-5 Series uses snap action with unique dual-contact assembly. This is best for AC and DC applications.
  • ASR 44 and ASR 44G Self Hold Thermal Cutout combine a thermostat with a resistor to meet a preset temperature.

Bimetal Thermostats With Calco Electric

Simple temperature regulation makes life easier. Contact us today for further details about our bimetal thermostats and their applications.

Temperature ControlSnap Action Temperature Control: The HB-2 series of 1/2” bimetal temperature controls from Calco Electric offers proven reliability in a compact, cost-effective design.

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Bimetal Thermostat
17AME+PTC is a self-hold thermostat with PTC heater. It has both power cut and time delay functions. The self-hold function will keep the circuit open until the power supply was unplugged. It has both current and temperature sensitive features. The current sensitive self hold thermostat can cut the circuit in few seconds and hold the circuit open.

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Creep Action ThermostatThe HB -7  Snap action bimetal disc thermostat from Calco Electric is a versatile, cost effective design.  The snap action of the temperature sensing bimetal disc provides high speed contact separation resulting in resulting in high life characteristics at loads of 25 amps @ 250 VAC.

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self hold bimetal thermostat The AMT-P1 Series thermostat available from Calco Electric offers an open frame design and provides a safer and more reliable protection on circuits.

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M2HA High Temp ThermostatThis product has been discontinued and has been replaced by M2HA High Temperature Sensor

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Disc ThermostatsWE ARE THE ONLY MANUFACTURER OFFERING LOW TEMPERATURE AS LOW AS 0C (32F). The Calco JUC-31F series is a RoHs compliant, snap action SPST  bimetallic thermostat which provides accurate sensing capabilities in a single device.

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Bimetal Thermostat KSD301KSD301 series snap-action bimetal thermostat is a kind of miniature hermetically sealed bimetal thermostat (1/2" disc). It is of single-pole single-throw structure and works under resistive load. KSD301 bimetal thermostat is in wide use in a great variety of compact type home appliances with automatic reset or manual reset to provide temperature control or temperature protection.

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Bimetal ThermostatThe KSD301-U Series Thermostat is specifically designed for appliances with one shot over-heat protection and prevention of excessive temperature rise. It can be customized to reset below the low temperature of -35°C, or never reset. It can be used in the appliance with excessive temperature protection such as toasters, copy machine sand printers to name a few.

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Bimetal ThermostatThe low profile rectangular type snap action thermostat has a unique dual contact assembly excellent for AC or DC applications. The narrow differential of 10°C deg. or less in a low temperature application makes it an ideal controller for maintaining a constant temperature without a wide temperature swing. This thermostat offers increased sensitivity in a electrically insulated housing.

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ASR 44 - ASR Self Hold Thermal Cutout

The ASR is a thermostat/resistor combination. The resistor is electrically located below the contact arm of the thermostat. When the thermostat contacts open at the predetermined trip temperature, the resistors are in series with the load. Thermal cutouts are also known as a TCO, thermal switch or thermal cutout switch.

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ASR 44G - ASR Self Hold Thermal Cutout

The ASR is a thermostat/resistor combination. The resistor is electrically located below the contact arm of the thermostat. When the thermostat contacts open at the predetermined trip temperature, the resistors are in series with the load. Thermal cutouts are also known as a TCO, thermal switch or thermal cutout switch.

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Bimetal ThermostatThe TB05 Series protector is a small temperature sensitive product with a small volume which features outer insulating and a long life.

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Thermal Motor Protector TB11The TB11 is a time delay thermal protector for motor protection. It is designed to achieve stable, reliable and long service life. 

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