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Latching Relay

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What Is The Principle Of Self Latching Relay?
Nov 03, 2017

What is the principle of self latching relay?

Self-locking circuit

The so-called self locking circuit, as the name suggests is to lock circuit, keep energized circuit. In the usual circuit, press the switch, the circuit is electrified; release the switch circuit is disconnected. Specifically, once the switch is pressed, it can automatically keep the power on until the other switch is switched off so that the circuit is called a self-locking circuit.


The principle of self latching relay

Can switch in series in the main contact of the relay (relay coil). At the same time, a free secondary contact (normally open contact) of the relay is connected with the switch in parallel (and connected with the main contact). As a result, press the switch contact (normally open) pull circuit power switch; after the release, because contact has attracted, and supply power to the coil relay contacts, coils in turn keep contact. The line drawn from the relay output circuit can be continuously energized.


Add: No.38 South Taoyuan Road, Yaozhuang Town,Jiashan County, Jiaxing City, Zhejiang Province, China
Contact person: Elva Zhuang&Sunny Ni
Tel:+86-573-84775555
Fax:+86-573-84776699
Phone:+86-13732570078
E-mail:sales9@great-relay.com
       sunny.ni@great-relay.com