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SEKI Thermal Cut-Outs

SEKI CONTROLS CO. LTD. have 40 years of experience specialising in the manufacture of Bimetallic Thermal Protectors and Thermostats, ideal for controlling temperatures at excessively high temperatures, protecting home and industrial appliances from internal and external damage.

The range of SEKI Thermal Cutouts provide thermal protection and temperature control from -20°C  to 180°C, with all their protectors capable of a calibration of at least ±5K tolerance.

The ST range of appliances have a range of available feature, such as moisture resistance or customisable wires upon request. Unlike thermal fuses, the ST series features an automatic reset, allowing them to be used as a permanent components.

The CK range features a patented double coating technology to prevent varnish penetration, maintaining part quality.

Available with a wide temperature differential, these sensors ideal for solving a range of over-temperature problems, combined with small, compact designs allowing for simple and cost- effective integration into your design.

Call us today on 01606 871680 to discuss your application’s thermal protector requirements.  Using our extensive technical knowledge and innovative supplier base, we will work with you to provide the optimum solution for your product.

  • SEKI ST-12 Bimetal Thermal Switch

    The ST-12 is a typical bimetal thermal cut-out by SEKI, which allows accurate temperature control of your device.

    • Snap Action with Automatic Reset
    • Superior Heat Response
    • Temperature Setting Range: 60℃ to 150℃
  • SEKI ST-22 Bimetal Thermal Switch

    The ST-22 bimetal thermal cut-out by SEKI is a highly reliable over heating protector, with custom wires available upon request.

    • Snap Action with Automatic Reset
    • Superior Heat Response
    • Temperature Setting Range: 50℃ to 150℃
    • PBT Resin Case with Epoxy Sealing
    • IP45 rating
  • SEKI ST-30 Bimetal Thermal Switch

    The ST-30 bimetal is the smallest thermostat in the ST series by SEKI. With custom wires available upon request, it’s compact size makes it ideal for integration into your product.

    • Snap Action with Automatic Reset
    • Temperature Setting Range: 50℃ to 150℃
    • PBT Resin Case with Epoxy Sealing
    • IP45 rating
  • SEKI CK Series Thermal Switch

    The CK series are metal motor/thermal protectors for electrical and electronic appliances.

    • Snap Action
    • Wide Selection of Leads and Insulating Sleeves
    • Contact Rating: 8A/250V AC (6,000 cycles)
    • Temperature Setting Range: 60℃ to 160℃
  • SEKI HB Series Thermal Switch

    Snap action disc thermostat with a range of available brackets and terminals. They are designed to maintain a certain temperature range during operation.

    • Available with Both of Normally Closed Type and Normally Open Type Contacts
    • Single Operation Disc (SOD): Open on temperature rise, no closure unless the temperature 0℃ or below -35℃
    • Temperature Setting Range: -20℃ to 180℃