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    Timer Relays

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    Digital Timer Relay, 8 Pin, 24V DC/110-240V AC

    Digital timer relay / countdown timer, on-delay timer, features timing setting range 0.01~9999 second / minute / hour, with supply voltages 85V-265V AC (110-240V AC) or 24V DC, 4-digit LED dual time display, easy to read, wide time delay range and high timing accuracy. 8-pin timer relay, available with 8-pin mounting socket for DIN Rail, easy to install.

    Digital Timer Relay, 8 Pin, 12V/24V/220V

    Digital timer relay with 3-digit LED display, on-delay timer, time setting range 0.01~999 second/minute/hour, supply voltages 12V DC, 24V DC or 220V AC. 8-pin timer relay with optional 8-pin mounting socket for DIN Rail, easy to install, high accuracy and wide time delay range.

    Analog Timer Relay, 6s/12s/30s/60s, 12V/24V/220V

    Low price time delay relay, analog, 8-pin, on-delay timer relay, timing range 6s, 12s, 30s, 60s, 6m, 12m, 30m, 60m, 6h, 12h, 30h, 60h for selection, power supply 220V AC, 12V DC or 24V DC, optional multi output modes suitable for your different applications. Also available with 8-pin mounting socket for DIN Rail.

    Programmable Timer Relay, 8-Input 8-Output, 12V/24V DC

    8-input 8-output programmable timer relay, with 12V or 24V DC supply voltage, can work as simple PLC, with intelligent and humanized control, easy to learn, understand and operate. Optional 3 output forms of transistor DC output, transistor AC output and relay output. Input compatible with PNP/NPN. High reliability and competitive price.

    Programmable Timer Relay, 12-Input 12-Output, 24V DC

    Brand new programmable timer relay, works as both multiple timer relays and a simple PLC controller for independent control and high accuracy, 12-in and 12-out relay output, compatible with PNP/NPN switching signal. Optional analog input/output 0~20mA, 0~10V, 485 Modbus. 24V DC power supply, easy-to-read LCD display, convenient DIN rail mounting, easy to operate, high performance and affordable price.

    Programmable Timer Relay, 16-Input 16-Output, 24V DC

    This 16-input 16-output programmable timer relay, aka. simple PLC controller, can replace both multiple timer relays and ordinary PLC, with more powerful & accurate timing function and easy to learn & understand programming. This simple PLC controller is relay type with power supply 24V DC. The input is compatible with PNP/NPN switching signal. Optional analog input/output 0~20mA, 0~10V, 485 Modbus. Easy to use and favorable price.

    Multifunction Time Delay Relay, AC 220V, AC/DC 12-240V

    Multifunction Time Delay Relay, a meticulously designed electrical control device crafted to meet a diverse array of time delay requirements. Supporting both AC 220V and AC/DC 12-240V power inputs, and accommodating frequencies of 50-60Hz, this timer relay offers compatibility with a wide range of electrical systems, ensuring enhanced flexibility and usability. Equipped with multiple functionalities, it is engineered to provide reliable control and flexible operation for your circuit systems.

    Time Delay Relay, Double Delay On, AC 220V, AC/DC 12-240V

    Double Delay Time Delay Relay, equipped to handle a wide input voltage range, accepting AC 220V as well as AC/DC 12-240V inputs. Operating seamlessly in temperatures spanning from -20°C to 55°C, it ensures reliable performance across varying environmental conditions. This timer relay features two independent delay control circuits, allowing you to flexibly control two different time delays to meet diverse application needs.

    Asymmetric Cycler Timer Relay, SPDT, AC/DC 12V-240V

    The asymmetric cycler time delay relay has 1×SPDT/ 2×SPDT these two output types. It has a separate delay setting function and can be set in an ultra-wide delay range of 0.1 seconds to 100 days, which can automatically switch the circuit opening and closing state in two different time intervals to achieve intermittent operation of the equipment. In addition, by short-circuiting S-A1, different working modes can be switched. Timed or intermittent fine control and protection of equipment in the power system can be achieved.

    Digital Setting Timer Relay, SPDT, AC/DC 12-240V

    The digital setting time relay can control the switch state in the circuit according to the preset time interval or time point. The biggest highlight is the precise digital dial code, which makes the working setting more accurate. In addition, it has 1×SPDT/ 2×SPDT these two output types to choose from, and it has the adaptability to work under AC/DC 12V-240V ultra-wide voltage.

    Time Delay Relay, Delay Off Without Supply Power, AC/DC 12-240V

    This time delay relay, delay off without supply power, is an electrical device capable of delaying the closure of a circuit after the power supply has been disconnected. This delay-off functionality allows for controlling the operation of devices even after power interruption. The timer relay is suitable for power systems ranging from 12 to 240 volts alternating current (AC) or direct current (DC) with a frequency of 50-60Hz.

    Timer relay, or time delay relay, is virtually a kind of relay, which generates a contact action after the set precision time when the input signal is added or removed. It is an electrical component that can switch on or off high voltage or large current circuits by using low voltage or small current. ATO online shop provides analog time delay relays, digital timer relays and programmable timer relays for your different applications. These timer relays have a wide time settings and the operating voltages DC 12V, DC 24V and AC 220V are available. The 8-pin socket for DIN Rail mounting is also optional. For specific information, please refer to the product pages.

    4 Points for Choosing a 12V/24V Timer Relay


    ATO offers analog time delay relays, digital timer relays and programmable timer relays for your different applications. The following aspects should be considered when selecting:

    1. Current and voltage level. For magnetic damping and air damping time relays, the current and voltage level of their coils should be the same as those of the control circuit. Motor type and transistor type time relays, the current type and voltage of their power supply. The rating should be the same as that of the control circuit.
    2. Delay mode. The delay mode is selected according to the requirements of the control circuit, namely power-on delay type and power-off delay type.
    3. Contact type and quantity. Select the contact type (delayed closing or delayed opening) and quantity according to the requirements of the control circuit.
    4. Delay accuracy. Electromagnetic damping time relays are suitable for occasions with low precision requirements, and motor-type or electronic time relays are suitable for occasions with high delay
    5. The operating frequency should not be too high, otherwise, it will affect the electrical life and even cause the delay action to be out of tune.

    Timer relays

    What Can an Electronic Timer Relay Do?

    • Expand the control range: For example, when the control signal of a multi-contact relay reaches a certain value, it can switch, break, and connect multiple circuits at the same time according to different forms of contact groups.
    • Amplification: For example, sensitive relays, intermediate relays, etc., with a very small amount of control, can control circuits with high power.
    • Integrated signal: For example, when multiple control signals are input to the multi-winding relay in a specified form, the predetermined control effect is achieved after comparison and synthesis.
    • Automatic, remote control, monitoring: For example, the relay on the automatic device can form a program control circuit together with other electrical appliances to realize automatic operation.

    How to Connect and Set Timer Relay?


    Digital timer relay has the advantages of accurate measurement, simple setting, multiple protection functions and high speed, etc. It is an ideal substitute for traditional electromagnetic and static relays. Digital time relay is generally used in automation equipment electrical cabinet, street lamp control, water pump timing operation control, equipment timing start and stop control and other occasions. We will experiment to see how it is set up and works in the following video.

    How to Adjust the Time of the Timer Relay Delay?

    1. Adjust the static core and armature between the non-conductive shims
      Non-conductive shims of different thicknesses change the working air gap, air gap changes, and the armature closed after the stable flux also changed, because the flux in normal operation is close to saturation, air gap change is not much on the size of the stable flux almost no effect, but access to a certain thickness of the shim will make a significant change in the residual flux, thus changing the position of the flux change curve, in the release of the spring tightness of a certain situation, the release flux, Therefore, increasing the thickness of the shim can reduce the delay time; conversely, it will increase the delay time. Non-conductive shims are generally made of phosphor bronze sheet, a thickness of 0.1, 0.2, or 0.3mm, this method of adjusting the delay is a step adjustment, so it is used for coarse adjustment.
    2. Adjust the release spring
      The tighter the release spring, the greater the reaction force, the easier to open the armature, the smaller the delay, and vice versa, the looser the release spring, the greater the delay, the release spring adjustment has a certain limit, can not be unlimited loose release spring to achieve increased delay, because the spring is too loose, the delay will be inaccurate, and even the armature will not be released; the same can not make the spring too tight, so as to avoid the armature can not be absorbed, this method can be a continuously smooth adjustment, so for fine-tuning.