Model H-8

Metric Dimensions are shown in mm (Shown in green)
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These Snap Action thermal protectors operate as a high limit, single operation (non-resettable) type control. The ceramic case isolates allows them to operate at temperatures up to 280°C.  As single operation thermostates they perform like a thermal fuse with the reliability of a 100% tested bimetallic thermal control.


  • Snap action devices; quick make/quick break switching action.
  • Single Operation type devices. Reset temperature is less than -35°C. This prevents the thermostat from resetting under normal operating conditions.
  • Unique positioning of the bi-metallic element allows for excellent heat transfer for improved reaction time.
  • Available with exposed bi-metallic elements for even faster thermal response.
  • Ceramic case isolates devices from the electrical circuit and is suitable for use in high temperature applications.
  • Can be mounted directly on a heated surface.
  • Preset calibration temperature, not adjustable in the field.
  • Opposite end termination allows for flexibility of installation.
  • Factory installed lead wires or terminals available, please contact us for available options.

Contact Ratings

  • 15 amps / 125V AC (resistive)
  • 10 amps / 250V AC (resistive)
  • CUL, TUV

Calibration Range

  • Available with nominal calibration temperatures from 250°C to 280°C.


  • Almost anywhere ultimate safety is required. Included are curling irons and many other small appliances.

Standard Marking System

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