Thermal fuses and sensors (S3M series)

Data sheet

You will receive a complete overview of all variations in connection with all the technical data in the following data sheet:

S3M4, S3M5, S3M7, S3M8, SDF

Fuses of this type are highly universally applicable due to their small design and the wide range of current-carrying capacity. They are found in all industries with electro-technical applications.

The portfolio ranges from the miniature fuse S3M7 with a ∅ 3mm and length of 10mm, up to the robust S3M8 with a current load capacity of up to 25 A. And the so-called high-current fuses S3M5 and S3M8 can be particularly found in heating applications of all kinds.

Since the purely wired fuse body usually has to be further processed for the respective application (insulation of the body, integration of connecting leads and connectors), Microtherm also offers the possibility of customer-specific designs for these fuses.

  • safe shutdown, small tolerance (-5K)
  • Contact system and therm. triggering unit separated
  • universally utilizable
  • broad application spectrum
  • Design of customer-specific variants
  • Protection against overheating
Application areas
  • Stoves
  • Cooking devices
  • Immersion heaters
  • electric. grill
  • Fryer
  • Waffle makers
  • Iron
  • Heater systems
  • Coffee machines
  • Hairdryer
  • electric. tools
  • Refrigerators
  • Accumulators


Do you have questions about the product?
Please contact us directly.

Microtherm Sentronic GmbH

   +49 7231 787-0