dry contact , also: volt-free contact

Dry contact may mean any of the following in electronics:

Dry contact alarm relays with both change over contacts available.

A set of dry contacts for the low battery voltage alarm is available in option.

Change over relay dry contacts for each alarm output.

Dry contacts are provided for remote annunciation in the following conditions:

Dry contacts means a relay that does not use mercury wetted contacts.

Dry contacts are primarily employed in 49 volt or less (low voltage) distribution circuits.

Dry Contact Cleaner cleans and degreases in one step.

An alarm circuit is incorporated with an outdoor horn, strobe light and dry contacts for remote monitoring.

Dry contacts, indicating power and optical signal status, are provided for interfacing to on-site alarm panels.

As with all dry contact with dry material to dissipate the potential buildup of static electricity.

Provides notification of alarm conditions to pagers from its 8 dry contact or wetted voltage inputs.

Use a contact lens solution to clean, rinse, and then air dry contact lens cases after each use.

The "dry contact" transferred no fuel, but was intended to test the tanker's fifth-generation fly-by-wire telescoping boom.

Dry contact relay alarms are also available at rear of the system to connect the system to external audio and visual alarms.

Read output of PLC (dry contact relay closures), identify component and print correct label.

Dry contact Sends AC failure and battery low signals, and receives shutdown signal from computer.

Dry contacts type C form for 10w voltage, high voltage, AC lost and battery disconnected faults.

The relay can also be used to create dry contacts or spare contacts which will allow a given alarm input to be spread to various terminations.

Each board supports up to 6 cameras, 6 dry contact inputs and 3 dry contact outputs.

Premium laminating adhesive, high temperature resistance, very stable, fast drying contact adhesive with a quick grab and long lasting tack time.

ECU l on the MCC controller provides four dry contact relay outputs with a common ground.

Contact dynamics problems in lubricated and dry contacts, variable compliance, vibrations in bearings, rotor/stator rubbing problems.

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.

It offers following wired sensors that can be connected to the base unit: temperature, temperature+humidity, flooding, power failure, shock, sound, dry contact, security sensor (smoke, motion, door contact).