1/2" Disc Thermostats

ATC Semitec offers various types of thermostat depending on your application, accuracy and expected life-time of your product (duty hours).

Precision Thermostats

High accuracy Matsuo MQT series precision thermostats offer unrivalled accuracy and switching differential compared to other electro-mechanical controls.  They use a unique twin bimetal system to maximise accuracy, contact life and performance

Disc-Type Thermostats

Button or disc type bimetal thermostats are ubiquitous and are more widely used than any other type of bimetal thermostat.  Capable of switching high loads (up to 16A/230VAC) for over 10,000 cycles and also control within a 10K temperature differential, they offer low-cost control solutions for millions of home appliances and automotive uses.

Low-Profile Thermostats

PEPI bimetal thermostats are some of the smallest available worldwide and can offer accurate control from 5°C to 200°C.  Both creep-action and snap-action contact options help to make these one of the widest thermostat ranges, with control options for both low voltage and mains voltage applications.

Adjustable Thermostats

These types of thermostat use a relatively large bimetal blade which is flexed by means of an adjusting spindle.  Turning the spindle moves the bimetal blade either closer to or further away from the switching mechanism, thus creating a temperature “range”.  By varying the bimetal materials and thermostat design, control from 5°C to 300°C can be readily achieved whilst switching loads of up to 16A/230VAC

Have a question or need a sample ? Call one of our engineers today on 01606 871680

The most common form of thermostat is the electro-mechanical thermostat, which is often made up of a bimetal sensing element and contact switch mechanism. The bimetal element expands differentially with the change of temperature. When the thermostat reaches its set-point, the bimetal element activates the contact mechanism to stop the heating process.

Mechanical thermostats are therefore unable to control to an exact temperature but only within a temperature range defined by the thermostat. They are often used as simple On/Off switches.

Electronic thermostats use electronic sensors such as thermistors, platinum sensors or thermocouples to sense the change in temperature.  Any temperature change is then transmitted back to the electronic control circuit, where a relay is activated to help control to the pre-set temperature.

Electronic thermostats are more complex and therefore more expensive but can often accurately control a set temperature to within 1°C or less.  Whilst this could readily translate into money saved through energy savings, their use is often limited to ‘premium’ products and critical applications.

Have a question or need a sample ? Call one of our engineers today on 01606 871680

Thermostats can be used anywhere that requires heating or cooling controlled to a set temperature.

This could include;

Kitchen appliances – e.g. refrigerators, ovens, kettles, etc.

Water heaters, electric showers

Air conditioning and heat pumps

Catering equipment

Home automation

To view our full range of thermostats click here

Have a question or need a sample ? Call one of our engineers today on 01606 871680

Thermostats are used to control temperature and are present in many household appliances.

They are thermally sensitive switches which sense the temperature of either a heat source or a cooling device. The thermostat then controls this heat/cool source at a pre-set temperature within a predetermined differential, i.e. the difference in temperature between the thermostat switching on and off, on and off, etc.

The primary function of a thermostat is to control temperature.  Thermostats can either be pre-set, adjustable and are either electro-mechanical or electronic in form.

To view our full range of thermostats click here

Have a question or need a sample ? Call one of our engineers today on 01606 871680