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A dry contact is a contact that does not provide voltage. For instance, the push-to-talk switch of a microphone, which just closes a circuit without providing voltage.
A wet contact is a contact that will provide voltage when closed, like the switch on the wall that activates the 110 VAC outlet to turn a lamp on in a room.
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+------o o---------(o)
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Dry contact
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--- Wet contact
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+---------------------(o)
Wiki User
∙ 16y ago
Wiki User
∙ 13y agowater is a gass and water is a liquid
water is wet and air is dry
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