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    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.
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    This double delay time delay relay, a high-efficiency, reliable control device designed to meet various time delay application needs. The timer relay supports AC 220V as well as AC/DC 12-240V input voltage range, making it suitable for various power systems, offering greater flexibility. Whether you're in industrial automation, building control, or home security, ATO Double Delay Timer Relay can meet your requirements.


    • 2xDelay ON (2 time relays in one)
    • Time scale 0.1s-10 days divided into 10 time ranges.
    • Times t1 and t2 are independently adjustable.
    • Times t1 and t2 are switched on after supply voltage connection.
    • Relay status is indicated by LED.
    • 1-MODULE, DIN rail mounting.



    Model ATO-GRT8-2T
    Function 2xDelay ON
    Supply terminals A1-A2
    Voltage range AC 220V (50-60Hz), AC/DC 12-240V (50-60Hz)
    Burden AC 0.09-3VA/DC 0.05-1.7W
    Power input AC max.6VA/1.9W
    Supply voltage tolerance -15%; +10%
    Supply indication green LED
    Time ranges 0.1s-10 days, ON, OFF
    Time setting potentionmeter
    Time deviation 10%-mechanical setting
    Repeat accuracy 0.2%-set value stability
    Temperature coefficient 0.05%/°C, at=20°C (0.05%°F, at=68°F)
    Output 2×SPDT
    Current rating 16A/AC1
    Switching voltage 250VAC/24VDC
    Min.breaking capacity DC 500mW
    Output indication red LED
    Mechanical life 1×107
    Electrical life (AC1) 1×105
    Reset time max.200ms
    Operating temperature -20℃ to +55°C (-4°F to 131°F)
    Storage temperature -35°C to +75°C (-22°F to 158°F)
    Mounting/DIN rail Din rail EN/IEC 60715
    Protection degree IP40 for front panel/IP20 terminals
    Operating altitude ≤2000m
    Operating position any
    Overvoltage cathegory Ⅲ.
    Pollution degree 2
    Max.cable size (mm2) solid wire max.1×2.5 or 2×1.5/with sleeve max.1×2.5 (AWG 12)
    Dimensions 90×18×64mm
    Weight W240-82g, A220-82g
    Standards GB/T 14048.5, EN 61812-1, IEC 60947-5-1


    Wiring Diagram

    Double delay timer relay wiring diagram

    Functions Diagram

    Double delay timer relay function diagram

    Dimensions (mm)

    Double delay timer relay dimension diagram

    Tips: Here are some usage considerations for the double delay timer relay

    When using the double delay timer relay, it's essential to ensure compatibility with the power source by connecting it within its rated input voltage range. Adjust the relay's delay parameters to match specific application requirements accurately. Install the relay in a dry, well-ventilated location away from moisture sources, and ensure correct wiring connections following manufacturer instructions to prevent malfunction. Before deployment, validate the relay's operation through testing to confirm functionality and adherence to control specifications. Regular maintenance checks and adherence to safety protocols are crucial for safe and reliable operation.

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