What are the functions of electromagnetic relay

Update:06-02-2023

A relay is a device that indirectly controls high-voltage, high-current circuits by using weak-current circuits and low-voltage on-off. An smart home relay is a switch that uses an electromagnet to control a working circuit.

General Purpose RoHS compliant 90A Three-phase relay

General Purpose RoHS compliant 90A Three-phase relay

Character:

-90A three sets of contacts switching capability.

-Apply to State Grid three-phase meter

-Only impulse excitation needed, both for single and double coil.

-Low power consumption, small in size.

-Custom assemblies available with flexible wire and/or copper straps, and/or with integrated shunt.

-4KV dielectric strength between coil and contacts

-RoHS compliant

-IEC62055-31 UC2 compliant

-Outline dimensions: (98 x 41 x 36)mm

Electromagnetic relay has two basic functions:

1. The electromagnetic relay is an important part of electric bells, telephones and automatic control circuit devices. Its essence is a switch controlled by an electromagnet, which plays a role similar to a switch in the circuit:

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

2. Realize remote manipulation and automatic control.

2. Using the electromagnetic relay, the weak current and low voltage control circuit can be used to control the high current and high voltage working circuit, and the production automation and remote control can be realized. Electromagnetic relays are widely used in automatic control (such as control circuits in automobiles, refrigerators, machine tools, and elevators) and communications.

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