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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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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OPEN FRAME SELF HOLD THERMOSTAT | THERMAL PROTECTOR | HEATER PROTECTION

The AMT-P1 Series thermostat available from Calco Electric offers an open frame design and provides a safer and more reliable protection on circuits. The PTC component and contact circuit form a parallel circuit. With the heating up of temperature, the contact circuit is off and current flows through PTC component to form a loop. The temperature of the PTC component increases rapidly, and being higher than the rated reset temperature, it keeps the circuit in the off state. When the main power is removed, the temperature decreases to the reset temperature of bimetallic strip, the strip recovers rapidly and contact closes.

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This Bimetal Thermal Switch from Calco Features Lowest Temp of 0°C - 180°C
17AME-H series bimetal thermal switch is specially designed for heating, lighting and motors. The switch is focused on the low temperature range and small temperature differential also know as narrow differential. Based on the principle of bimetal heat expansion and cold contraction, the thermal switch can control the temperature of application under a very small range.

Calco Electric sells the following types of thermostats in the MQT series:

• 2 AMP. Series for Ordinary Temperature Thermostat

• 5 AMP. Series for Ordinary Temperature Thermostat

• Liquid Temperature Control Thermostat

This bimetal type of thermostat controls temperature up to 400°C. Disk type of thermostat has a refractory problem and can not control higher temperature than 230°C.  It is economical against an electronic thermostat employing a thermocouple. Cross bar contact type of H702P is available. (1~100mA) UL approved, dust proof (IP60) and offers a mounting bracket is selectable from bracket 1 and 2.

The 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. Calco Electric is offering the best and highest quality 3/4" discs available.

Snap 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. The snap action of the bimetal disc provides excellent contact separation resulting in excellent life cycle at electrical loads of 15 amps at 120 volts and 7.5 amps@250 volts, and 10 amps at 240 VAC for 100,000 cycles.  Calco Electric supplies the best and highest quality 1/2" discs available.  This is an automatic reset thermostat.

WE ARE THE ONLY MANUFACTURE 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. The JUC-31F  Series confirms to IEP standards Y220/TO220.   Therefore they may be automatically placed and soldered in a pick/place applications, ideal for printed circuit boards Factory calibrated 0C-130C in 5C increments.

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This device is a thermostat, providing temperature control for heating applications. A thermally sensitive bimetal snap-element switches when it reaches a pre-set response temperature or a fixed current level, opening the circuit. Current flows through the bimetal element, giving a combination of temperature and current protection. Heat transfer occurs from all sides through convection or radiation.

The 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.

The model JRMD Series is a bimetallic creep action (slow break / slow make) temperature regulating or thermal limiting device and are available with gold diffused contacts for low voltage/current application.