You have questions. wE have answers.
What is a temperature hystersis?

When a thermostat switch changes states, from Open to Closed for example, the point at which it resets to Open, or the original state, will not be exactly at the original point. The difference between those two points is the  hysteresis.

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Do I need a control or limit switch for my application?

Likely both! When a machine needs higher reliability to operate, or cannot survive a digital control failure or power interruption, engineers will use something a more reliable such as a capillary or snap disc thermostat switch.

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I have a capillary thermostat made by another manufacturer. Will your’s work?

Click here to find a simple capillary cross reference guide to help find the correct switch.

How does a capillary thermostat work?

Bulb and Capillary style thermostats use expanding liquid to open or close contacts in response to temperature changes. No matter which style or model you choose, all of the capillary thermostats operate using the same physics. A fluid is encapsulated in a metal tube (bulb and capillary) and when the temperature changes the fluid either expands or contracts. This fluid change moves the head which triggers a snap action switch either opening or closing the circuit.

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What makes you capillary thermostat better than my current unit?

Our bulb & capillary thermostats are 100% tested before they leave our facility, and they are ambient compensated.

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How do I determine what thermostat is best for my application?

Bulb & capillary thermostats have a lot of different options available to meet your application requirements.

Click here to find a step by step guide that outlines the detail to determine the best thermostat for your application.

Where are your capillary thermostats made?

Our capillary thermostats are designed & manufactured at our facilities in Eau Claire, Wisconsin, U.S.A.

How fast can you ship?

Because our capillary thermostats are each design to meet customer specifications, typically they are made to order with a 6-8 week lead time. We do stock some standard production models for prototype testing. Contact us for further information.

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    A Division of Senasys

    1435 International Drive

    Eau Claire, WI 54701, U.S.A.

    +1 (715) 831-6353