Understanding the 12V Relay: Applications and Functionality

A 12V relay is an electrical component that plays a crucial role in modern electrical systems by allowing low voltage circuits to control high voltage or high current devices. These versatile switches are found in a wide variety of applications, from automotive systems to industrial automation. In this article, we will explore the key features, working principles, and practical uses of a 12V relay. What is a 12V Relay? At its core, a 12V relay is an electromechanical switch. It consists of a coil, an armature, and a set of contacts that open or close depending on the state of the coil. When a 12V direct current (DC) is applied to the coil, it generates a magnetic field that pulls the armature, causing the contacts to switch between two positions: normally open (NO) and normally closed (NC).