Capillary thermostat

Maximum flexibility meets precision: Accutherm Capillary Thermostats.


Accutherm Capillary Thermostats have a very simple structure but require precision work to calibrate the membrane.

The thermostat temperature sensor consists of four components: The thermostat temperature sensor consists of four components: sensor, capillary tube, membrane, and filling medium. When the sensor is heated, the filling medium heats up, expands and increases the pressure in the closed-circuit system. This increase in pressure actuates a snap-action switch which opens the contacts in the electrical circuit.

Accutherm Capillary Thermostats and Safety Temperature Limiters are available in single-pole and multi-pole versions. We design and create individual solutions according to customer-specific requirements.

Electric thermostat 3 Pole

3 phase AC application

Adjustable Capillary Thermostat -35℃~+400℃


Electric thermostat for Hydrothermal Circulation System

Design for hydrothermal circulation system

Enclosure Thermostats

Cabinet thermal control

Adjustable Capillary Thermostat -30°C~320°C

1-pole bulb and capillary control

Manual Reset Capillary Thermostat

Fixed temperature with Manual Reset