Capillary Switches

Our capillary style thermostat switches are high limit switches. A limiting device is installed in a piece of equipment with an adjustable or fixed temperature setting, 0-700°F, that when the temperature is met either opens or closes a circuit. These temperature switches are available as an automatic or manual reset. Capillary thermostats are typically installed as a back-up or secondary control to prevent the equipment from exceeding a specified temperature, high or low.

Other temperature options, materials and custom variables are available upon request.

Original equipment manufacturers worldwide use thermostat switches designed and manufactured by Senasys Inc. No matter which style or model you choose, all of the capillary thermostat switches operate using the same physics. A fluid is encapsulated in a metal and when the temperature changes the fluid either expands or contracts. This fluid change moves a diaphragm which is in touch with a snap action switch and either opens or closes a circuit.

Commercial food equipment manufacturer’s incorporate Senasys’ high quality, UL approved thermostat switches and control. Other important applications are pool and spa, HVAC equipment and products for the home.

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