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Thermostats from PROTHERM

Thermoswitches, Temperature Controllers, Bimetal Thermostats, Regulators,
Limiters, Protectors, Klixon, Thermal Sensor – whatever you may call it: you will find it with us. Competent advice, best quality and fair prices are included.

Thermoswitches, Temperature Controllers, Bimetal Thermostats, Regulators, Limiters, Protectors, Klixon, Thermal Sensor – whatever you may call it: you will find it with us. Competent advice, best quality and fair prices are included.

    Our bimetallic thermostats protect applications in a wide variety of products and systems - worldwide!

    In industry, temperature switches protect countless applications from dangerous excess temperatures.
    Bimetal fuses are used in industry to protect high-power lasers or for thermal temperature limitation in transport equipment. The temperature control of switch cabinets by means of Klixon and the monitoring of resistors also belong to this category.
    Temperature protection by thermoswitches is indispensable in environmental technology
    Wind turbines and photovoltaic systems will shape our image even more in the future. Thermal protection in environmental technology is therefore in high demand. The thermal monitoring of busbars or gearbox bearings with bimetal switches or the thermal protection of inverters, heat sinks or converters with temperature switches, limiters or thermal fuses is one of our strengths.
    Railroad technology benefits from the sophisticated and robust bimetal switch technology
    We supply manufacturers of railroad technology, for example, with bimetallic switches for frost protection on railroad couplings and steps or for thermal control of toilet and window heaters.
    Controllers and limiters in catering equipment ensure special moments of enjoyment for guests.
    In catering equipment, our bimetal switches can be found, among other things, for temperature control in baking machines, convection ovens, dishwashers, refrigerated counters and cold stores, and temperature limiters to prevent undesirable temperatures.
    Feel-good temperatures are achieved in the wellness area thanks to reliable temperature controllers.
    Temperature protection by thermoswitches is even used in applications from the wellness sector. This includes the monitoring of temperatures in solar or massage beds as well as heating controls in IR applications or thermal limitation in UV filters.

    Temperature controls with bimetal switches in building services engineering contribute to a high level of living comfort

    A typical application of our bimetal switches or bimetal limiters in building services engineering is temperature control on hot water manifolds or heating systems. The aim is either to always maintain the correct temperature or to switch off an undesired excess temperature. Heating mats or control cabinet heaters can also be controlled or limited with thermoswitches. LED lamps can be protected from overheating by means of our temperature switches.
    The treatment of patients is ensured by the high-quality temperature protection in medical technology.
    In medical technology, you will find thermoswitches in the high-tech applications of MRI or CT for monitoring oil temperatures or for protecting temperatures in operating table heaters. Many other applications such as overheating protection of UV filters, surgical lamps or autoclaves complete the range of applications in this field.

    The very best of 2 worlds -
    a perfect fit for your application

    • Extensive warehouse
    • Consultation and support of developments
    • Small quantities available
    • Customized switches and assemblies
    • High quality test equipment
    • Fair business relations based on partnership
    • Friendly and motivated team
    • World renowned Japanese accuracy
    • Extensive developments and technologies
    • Successful on the world market since 1963
    • In-house manufacturing of switch components
    • Certified manufacturing according to ISO, RoHS, REACH
    • Manufacturing in clean room climate
    • Reliable delivery times

    The very best of 2 worlds - a perfect fit for your application

    • Extensive warehouse
    • Consultation and support of developments
    • Small quantities available
    • Customized switches and assemblies
    • High quality test equipment
    • Fair business relations based on partnership
    • Friendly and motivated team

    • World renowned Japanese accuracy
    • Extensive developments and technologies
    • Successful on the world market since 1963
    • In-house manufacturing of switch components
    • Certified manufacturing according to ISO, RoHS, REACH
    • Manufacturing in clean room climate
    • Reliable delivery times

    Thermal switches are safety components.
    Use our experience and advice to make the best possible choice

    Bimetal Thermostats as Automatic Reset Type

    Temperature controllers are used to maintain a temperature in your application at a specific level or to trigger an action (e.g., switching a relay) within a defined temperature range. The bimetal controller can be connected directly in series in the electric circuit and controls the temperature by switching on and off automatically within the defined temperature range.

    Half inch phenol
    up to 150°C

    Half inch phenol
    up to 150°C

    • Normally open (NO) or Normally closed (NC)
    • Switching temperature from 0°C – 150°C
    • AC or DC Voltage
    • Signal or power switching from 5mA/24VDC to 16A/230VAC

    Half inch ceramic
    up to 260°C

    Half inch ceramic
    up to 260°C

    • Normally open (NO) or Normally closed (NC)
    • Switching temperature from 40°C – 260°C
    • AC or DC Voltage
    • Signal or power switching from 5mA to 16A

    Half inch low
    up to 200°C

    Half inch low
    up to 200°C

    • Normally open (NO) or Normally closed (NC)
    • Switching temperature from 0°C – 200°C
    • AC Voltage
    • Power switching up to 16A

    ¾ inch for high power
    up to 45A

    ¾ inch for high power
    up to 45A

    • Normally open (NO) or Normally closed (NC)
    • Switching temperature from 0°C – 150°C
    • AC Voltage
    • Power switching up to 45A / 250VAC or up to 13A / 480VAC

    Moisture-proof

    up to 120°C

    Moisture-proof
    up to 120°C

    • Normally open (NO) or Normally closed (NC)
    • Switching temperature from 0°C – 120°C
    • Based on IP54 or IP 67
    • AC or DC Voltage
    • Signal or power switching from 1mA(12P) to 8A

    All series are available in in various designs
    or customized versions.

    Bimetal Thermostats as Manual Reset Type

    Temperature limiters are used to protect your application from an unwanted or impermissible temperature effect. A bimetal temperature limiter reacts when a fixed set temperature is reached and interrupts the electric circuit (signal or direct load circuit). After cooling down, the limiter can be manually reset to continuity by actuating the reset pin.

    Half inch phenol
    up to 150°C

    Half inch phenol
    up to 150°C

    • Normally open (NO), manual reset
    • Switching temperature from 0°C – 150°C
    • AC or DC Voltage
    • Signal or power switching from 1mA to 16A

    Half inch ceramic
    up to 250°C

    Half inch ceramic
    up to 250°C

    • Normally open (NO), manual reset
    • Switching temperature from 40°C – 250°C
    • AC or DC Voltage
    • Signal or power switching from 1mA to 16A

    Half inch phenol
    with cover

    Half inch phenol
    with cover

    • Normally open (NO), manual reset
    • Switching temperature from 40°C – 150°C
    • AC or DC Voltage
    • Signal or power switching from 1mA to 16A

    ¾ inch
    up to 150°C

    ¾ inch
    up to 150°C

    • Normally open (NO), manual reset
    • Switching temperature from 40°C – 150°C
    • AC Voltage
    • Power switching from 1A to 45A

    Moisture proof

    up to 120°C

    Moisture proof
    up to 120°C

    • Normally open (NO), manual reset
    • Switching temperature from 40°C – 120°C
    • AC Voltage
    • Power switching from 1mA to 6A

    "Made in Japan"
    for the World

    Bimetal Thermostats are safety components. Use our experience and advice to make the best possible choice

    Please feel free to contact us