Dry Contacts Electrical

It could be stand alone such as a pressure switch mounted on a boiler.

Dry contacts electrical.

A common example would be the contacts in a compressor contactor. The contactor has a 24v coil in residential but the power supply through the contacts doesn t have any connection to the coil. A dry contact is the synonym of volt free it is not wetted by a voltage source dry contact can refer to a secondary set of contacts of a relay circuit which does not make or break the primary current being controlled by the relay. Usually some other contacts or devices have the job of starting or stopping the primary.

A wet contact output on a device like a r. Wet contacts are automatically given power when the switch has power and the main advantages are the simplicity of wiring and the consistency of voltage levels making. Dry contact may mean any of the following in electronics. A dry contact is a contact that is not initially connected to a voltage source.

The contacts simply provide an open or closed state to another device. A dry contact output on a device like a relay means that the contacts have no voltage or potential difference across the two contacts.