Whilst this is unlikely isolators are mechanical components that have moving parts that can wear and ultimately fail. When working on a machine or electrical system it is always advised to unplug the machine if possible as isolators can fail.
This is so they can easily be operated when needed and also if the supply needed to be disconnected in the event of an emergency. Isolators should be easily accessible when deciding what location to fit them. Isolators have electrical testing points located on them so users can test for the presence of voltage. This could be when you need to work on the system or when a part or component may need testing or maintenance. Isolators are fitted on the incoming electrical supply to your machine, system, or circuit to separate power from the supply and components when needed. Isolators should not be operated when a machine or system is running and current is flowing through components, they are used when no load is on. Isolators are used to locally power on and power off machinery when needed for operation, fault finding, or maintenance work.
We will take a look at what isolators actually are, we will take a look at the role they play within an electrical circuit, we will look at the different types of isolators, and finally some of the most commonly asked questions around them.Īn isolator is a type of mechanical switch that is used to electrically isolate electrical circuits from current passing through them. In this article, we will take a look at some of the most frequently asked questions about isolators. They are used to connect or disconnect the electrical supply from the machinery or system when needed. Isolators are key electrical components that are used in a number of different electrical systems and circuits.
If you are new to the world of electrical circuits and engineering then you may have heard the term isolator used on a frequent basis.
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