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| What is the difference between a mercury switch and a snap action switch? |
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| Basically the mercury float has a small amount of mercury hermetically sealed in a stainless steel bulb that via a rocking motion signals the switch on/off. The snap action switch has a piece of stainless steel which is put under pressure side to side, causing the unit to arch in the middle. Depending on the amount of force being put on the piece of metal, it will snap either in an up position or down signaling the switch. |
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