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The category temperature protection includes irreversible temperature protection, PTC thermistors, temperature switches with self-hold, automatic or manual reset.

The area of application of these components Is from -45°C to +425°C.

Temperaturschalter und Temperatursicherungen Temperature Protection

Temperature Protection

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The temperature controllers from Alpha Therm include small and cost-effective bimetal controllers with up to 2 million switching cycles as well as a wide range of electronic temperature & humidity controllers.

Mechanische und elektronische Temperaturregler Temperature controller

Temperature Controlling

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The temperature sensor category includes NTC and PTC thermistors as well as platinum measuring resistors (Pt100, Pt1000) and temperature sensors made of these components. These high-precision components change their resistance value with increasing or decreasing temperature and can be used depending on the type from -200°C to + 850°C.


Pt100, Pt500, Pt1000, NTC & PTC Thermistor, KTY Temperature Sensors

Temperature Sensors

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Alpha Therm's NTC and PTC thermistors and resettable fuses, called Polymer PTCs or PPTCs, are under the category of overload protection.

Überlastschutz NTC & PTC Einschaltstrombegrenzer, Polymer PTC Overload protection

Overload Protection

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Suppressor diodes, metal oxide varistors and gas arresters are among the components that Alpha Therm offers for reliable overvoltage protection.

Varistor, Gasableiter, Suppressor- & Zenerdioden Surge protection

Over Voltage Protection

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Functionality and reliability are combined in Alpha Therm's wide range of mechanical switches and buttons.

With customized design and high quality standards, these cost-effective components convince.

Schalter & Taster Mechanical switches

Buttons & Switches


α Therm


Alpha Therm GmbH - Your specialist for temperature-limiting

safety components, sensor elements or sensors

Due to maintenance work, it may come on 28.09.2018 and the following days to disrupt our telephone, fax and Internet connection.

We ask for your understanding.

© 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