ZJSHUYI A relay is a component that is often used as a switch in a circu...

A relay is a component that is often used as a switch in a circuit. According to the type of control voltage required by its coil, it can be divided into AC relays and DC relays. The specifications of the relay are expressed by the coil control voltage and the contact current. Usually, when the load current is less than 10A, the contact of the relay can be used to directly connect or cut off the circuit. When the load current is too large, it can be used as an indirect control part. Relays are generally composed of iron cores, coils, armatures, contact springs, etc. As long as a certain voltage is applied to both ends of the coil, a certain current will flow through the coil, and an electromagnetic effect will be generated. contacts (normally open contacts) attract. After the coil is powered off, the electromagnetic attraction also disappears, and the weighing iron returns to its original position under the reaction force of the spring, releasing the moving contact and the original static contact (normally closed contact). This absorption and release achieve the purpose of conducting and cutting off in the circuit. Regarding the normally open and normally closed contacts of the relay, it is possible to distinguish the static contacts that are in the disconnected state when the relay coil is not energized, and the energized static contacts called the normally open contacts are called the normally closed contacts. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #ZJSHUYI #Chinashuyi #shuyitop #relay