![]() On the other hand, normally open relays are used when the fan needs to remain on when the power is off. Normally closed relays are used when the fan needs to be switched off when the power is off. The two main types of relays used for fan wiring are normally closed and normally open relays. Finally, we’ll go over the common mistakes made when wiring a fan with a 4 pin relay. After that, we’ll cover some safety tips and provide some extra information about wiring your fan correctly. In this article, we’ll provide some insight into the basics of a 4 pin relay wiring diagram for a fan so that you can wire your fan safely and properly.įirst, we’ll look at the different types of relays available for fan wiring and then discuss the steps involved in wiring a fan using a 4 pin relay. A 4 pin relay wiring diagram for a fan is a great way to ensure that your fan is connected securely and safely. Relays are an integral part of any electrical circuit, allowing for a controlled current to be passed through a device or system.
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