Yueqing Face Electric Co., Ltd.
Yueqing Face Electric Co., Ltd.
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Function of Latching Relay

Relay is a device that uses weak current circuit and low voltage to indirectly control high voltage and high current circuit. Electromagnetic relay is a switch that uses electromagnet to control the working circuit.

Two basic functions of electromagnetic relay:


1. Electromagnetic relay is an important component in doorbell, telephone and automatic control circuit device. Its essence is a switch controlled by electromagnet, which plays a similar role to switch in the circuit:


2. Use low voltage and weak current to control high voltage and strong current;


3. Realize remote control and automatic control.


4. Using electromagnetic relay, weak current and low voltage control circuit can be used to control strong current and high voltage working circuit, and can realize production automation and remote control. Electromagnetic relay is widely used in automatic control (such as control circuits in automobiles, refrigerators, machine tools, elevators) and communication fields.


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