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The Difference between Time Relay and Latching Relay

Pulished on Jan. 28, 2021

Electromagnetic relay and Time relay are two common relays. What is the specific difference between them?Today we will look at the differences in terms of their definitions, features and application areas.


Timing relay is an electrical components when add (or remove) the action of input signal, the output circuit has been stipulated in the accurate time to result in a change to jump (or contact) of a relay is a kind of used in low voltage or current smaller circuit, for putting through or cut off the circuit of high voltage large current.


Electromagnetic relay is an electronic control device, it has a control system (also called input circuit) and control system (also called the output circuit), usually used in automatic control circuit, it is actually with smaller current low voltage to control a large current or high voltage, just like automatic switch. Compared with the Timing relay, the function of electromagnetic relay in circuit is more, it can play an automatic regulating safety protection in circuit switching circuit, and so on.


Here are the principles and characteristics of these two products:Timing relay: the main function of the Timing relay is as an executive device in the simple program control. When it receives the start signal, it starts timing. After the timing is over, its working contact will open or close, so as to promote the subsequent circuit work.


And the principle of electromagnetic relay is: as long as both ends of the coil with a certain voltage, a certain amount of current will flow through coils, with producing electromagnetic effect. Then the armature is under the action of the electromagnetic attraction, overcome the return spring tension suction to the core, so as to drive the armature of the moving contact and the static contact (normally open contacts) after power off when the coil electromagnetic suction also disappear, armature reaction force in the spring to return to the original position, the moving contact with the original static contact (normally closed contact) pick up and release, the conduction of cut off the circuit so as to achieve the purpose.


Due to the different features on the nature, application fields are also different. Timing relay is often used in the automatic control circuit, it is actually with a small current to control large current operation role is a kind of automatic switch Timing relay receives the control signal, delay for a period of time contact, delay time is adjustable in addition, also applied to electric power delay, power off delay and loop control, etc.


The electromagnetic relay is an important part of the electric bell telephone and automatic control circuit device, its essence is that the controlled by the electromagnet switch in the circuit plays a similar role to the switch. Electromagnetic relay is widely used in automatic control (such as refrigerator, car, elevator machine tool control circuit) and communication field. In addition, UPS(uninterruptible power supply), voltage regulator, motor and so on are also common application scenarios of electromagnetic relays.


The above is the introduction of the difference between Timing relay and electromagnetic relay.Ivy has lots of different electromagnetic relays,32A to 200A, single-phase to three-phase and so on. If you have the demand of electromagnetic relay, please click www.ivy-metering.com. 


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