What is a relay and its four functions

Update:08-08-2022
What is a relay? From the definition of a relay, a relay is an automatic control device that will change the output by jumping when the input (electricity, magnetism, sound, light, heat) reaches a certain value. The smart home relay is actually an electronic control device. It has a strong control system (also known as an input loop) and a controlled system (also known as an output loop). It is usually used in automatic control circuits. It actually uses a smaller current to A type of "automatic switch" that controls larger currents. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit.

UC 2 Compliant 80A Three-phase Latching Relay
UC 2 Compliant 80A Three-phase Latching Relay

Character:
-80A three sets of contacts switching simultaneously, auxiliary contact can be added.
-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: (100 x 45 x 21)mm
The four functions of the relay are as follows:
First, expand the scope of control.
When the control signal of the multi-contact relay reaches a certain value, it can open, switch, and connect multiple circuits at the same time according to the different forms of the contact group.
Two, zoom in.
Sensitive relays, intermediate relays, etc., can control high-power circuits with a very small amount of control.
Third, the integrated signal.
When a plurality of control signals are input to the multi-winding relay in a prescribed form, the predetermined control effect is achieved through comparison and synthesis.
Fourth, automatic, remote control, monitoring.
The relays on the automatic device, together with other electrical appliances, can form a program control circuit to realize automatic operation.
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GRT508FA CQC Certification Single Phase 80A Latching Relays

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