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What does volt free switching mean?

Volt free contacts or volt free switching does not operate a system without any voltage as the description of it may imply.

Volt free contacts or volt free switches are invariably mechanical contacts with no electrical connection to any other part of the equipment the contacts being open and closed mechanically by a solenoid or other device. A relay is an example of a volt free contact device as the operating coil is not connected to the contact(s) and will usually have a Common and a Normally open and a Normally closed set of contacts.

Volt free contacts or switching allow the user to switch a range of voltages from 24 up to 230 volts, by applying their particular voltage to the Common terminal and connecting their appliance to either the Normally open or Normally closed contacts, depending on the application.

Written by Sunvic at 00:00
Categories:  Terminology

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