Growth is evidence of quality

What started out as a small individual company in the family’s home is now a globally operating, medium-sized family business with its headquarters in Plankstadt.

In the meantime, we deliver millions of high-tech products every year to more than 4,000 satisfied customers around the world.


Our customers work in a wide range of industries - transformer construction, power supplies and converters, PCB assembly as well as heating and cooling systems, electric motor construction and temperature control.



In the right hands

With more than 20 year of experience, we have extensive know-how in the areas of temperature protection and temperature sensors.


Thanks to our extensive portfolio, we are able to meet the needs of our customers individually. In close cooperation with our customers, we can adapt or redesign many of our products according to the wishes of our customers.


α Therm


Alpha Therm GmbH - Your specialist for temperature-limiting

safety components, sensor elements or sensors

© 2018 Alpha Therm GmbH

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Phone: +49 6202 / 575688 - 0

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Temperature protection

Temperature Protection

Overload protection

Overload protection

Surge protection


Surge protection

Temperature sensor elements

Temperature Sensors

Temperature controller

Temperature controller

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Mechanical switches

Mechanical switches