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The time switch manufacturer tells you that there are several types of time relays

Click volume: 753 Release time: 2023-02-17

There are several types of time relays
Do you know what a time relay is? What kinds of time relays are there?Time switch manufacturers tell you,Time relays can be classified into two types, which can be divided according to the classification method and type. The more common water and electricity are progressive electrical appliances. Input multiple corresponding points, and can work with different voltages, and can also control different circuits.

Electronic time relay

Classification of time relays:
The electromagnetic time relay has a simple structure and low price, but the delay time is short (0.3-1.6s), and the volume and weight are relatively large, so it can only be used in DC circuits and power-off delay occasions.
The air damping time relay, also known as airbag time relay, is a time relay widely used in AC circuits at present. It is made according to the principle of air damping. It has a simple structure, reliable operation, low price, and wide delay range. If it is larger (0.4~180s), it can be used in a DC circuit by replacing a coil, but the delay accuracy is low.
The dynamic time relay is driven by a synchronous motor, and the delay action is obtained through the rotation of the gear. It has high delay accuracy and a wide delay range (0.45s ~ 72h), but the structure is complex and expensive.
The electronic time relay, also known as the transistor time relay, uses the principle of time or pulse counting in the charging and discharging process of the capacitor and makes the relay produce a delay action through the electronic switch circuit. It has a small size, high precision, good reliability, and a delay range Wider (0.1s~lh).

NDS16-2(H3Y ST6P) Electronic time relay

How to adjust the electronic time relay
In the time relay, H means hour and s means second. Set a power-on time to a certain value, and change the dial code or button number to the set value. Generally speaking, the delay performance of the time relay can be adjusted within the design range, so that it is convenient to adjust its delay time. A time relay alone may not be able to delay closing at the beginning, and then disconnect after closing for a period of time.
But in general, it can be done by configuring a certain number of time relays and intermediate relays. If you are using a power-on delay type time relay, it will start delaying immediately after obtaining the input signal, and its execution part will output a signal to manipulate the control circuit after the delay is over; when the input signal disappears, the relay immediately returns to the state before the action state.
If it is a power-off delay type time relay, the opposite is true. When the input signal is obtained, the execution part immediately has an output signal; after the input signal disappears, the relay needs a certain delay to return to the state before the action.

NDS18(JJS27A) Electronic time relay

Application of Time Relay
Time switch manufacturers tell you,Timing relays are commonly used in a variety of industrial and commercial applications. Some common applications include machines, buildings, water systems, HVAC, and others.
1. Machine control
They are commonly used in machine control applications to provide cyclic mechanical switching. This helps prevent the device from sticking or getting damaged.
2. Lighting control
Time relays can be used for delayed switching of multiple rows of lights in production facilities or greenhouses. This can help save energy by preventing lights from being turned on when they are not needed.
3. Water section
Pump control and irrigation systems are common applications for timed relays in the water supply.
4. HVAC control
It can be used in HVAC systems to control fans and centralized water systems. This helps save energy and keep buildings comfortable.
5. Alarm Trigger
Time relays can be used to trigger an alarm after a set time has elapsed. This is useful for security applications or monitoring purposes.


These are just a few examples of where timed relays can be used. There are many other potential applications for these multifunctional devices.
This article tells you about the types of time relays; what are the classifications and their definitions; how to adjust electronic time relays; the application scenarios of time relays. If you know more about time switches, please pay attention to us.

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