The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". This cookie is set by GDPR Cookie Consent plugin. These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. The color of those wires will depend on whether you are switching ON and OFF the negative or the positive cable of the device that you are going to handle with the solenoid.īelow you will find a simple schematic that will show you how to wire a solenoid switch to any device that you need. If you want, you can use brown or orange cables on the high-current end of the circuit, to distinguish them from the solenoid to battery connections. By convention, it’s advised that you use black wire for negative and red wires for positive. 2 thicker and bigger connectors for the high-current switchĪssuming that you are going to perform this wiring in a car, you are probably going to use a 12V battery.2 small connectors for the solenoid switch.Please watch this video for more detailed information on 4-pole solenoid wiring (schematics):Ī starter solenoid usually has four terminals: two terminals are used for the high current circuit and the other two are the low current terminals of the solenoid, which are connected to the inner coil, and are the ones that trigger the high current device on the high power end.įour connectors in a solenoid generally include: When a small current is applied to a solenoid, a coil located inside generates a magnetic field that moves a plunger that drives the high current switch to the closed position. They allow to activate high current circuits and manage them by switching on two contacts that need considerably less power to be activated than the current that the solenoid is going to handle. Solenoids provide a safe and easy way of activating and deactivating any kind of electrical ON and OFF components. One of the larger terminals is connected to the hot wire coming from the battery, the second large terminal is connected to the starter, the first smaller terminal (S) connects to the ignition switch, the second small terminal connects to either ballast resistor (R) or ignition coil (I) and is generally unused. This is how a 4-pole starter solenoid switch is connected. FOR MORE INFORMATION, PLEASE READ MY EARNINGS DISCLAIMER. THIS POST CONTAINS AFFILIATE LINKS THAT WILL REWARD ME MONETARILY OR OTHERWISE WHEN YOU USE THEM TO MAKE QUALIFYING PURCHASES. How to Wire a Solenoid Switch ĭISCLAIMER: AS AN AMAZON ASSOCIATE I EARN FROM QUALIFYING PURCHASES.
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