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    Relays

    A relay is an electronic control device, which can automatically switch a controlled circuit to make a difference when given an input value like electrical, magnetic, optical or thermal signals. When the input value drops to a certain extent, it will return to the initial state and then the controlled circuit will also go back to the original state. It has the interaction between control system (input circuit) and the controlled system (the output circuit).
    Relays are usually used in automatic control circuits, as the automatic switches which actually can control a larger current by placing a smaller current. Therefore, it plays a role of automatic adjustment, safety protection, conversion circuit in the electric circuit. As one of the most important control elements, it is widely applied in remote control, telemetry, communication, automatic control, mechatronics and power electronics.

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    3 Phase Monitoring Relay, SPDT, Phase Failure/Undervoltage/Overvoltage

    $88.89
    SKU: ATO-MR-JVR
    Low price 3 phase monitoring relay with SPDT (1 C/O) contact, used for monitoring phase failure/loss, phase sequence, phase unbalance, overvoltage and undervoltage at the rated voltage of AC 220V, 380V, 440V, 460V, or 480V 50/60Hz, LED lights indicating working state, compact size and DIN rail mounting, provide a safe protection for electric motors, air compressors, pumps and other equipment or devices.

    Electromagnetic Relay, 11-pin 3PDT, 12V/24V/110V/220V

    $34.77
    SKU: ATO-EMR-13F3Z
    Low cost and high quality electromagnetic relay, 11-pin 3PDT, plug-in terminals, silver alloy contacts, and contact load 10A/240V AC 28V DC, common coil voltages of 12V DC/24V DC/110VAC/220V AC for your choice.

    Electromagnetic Relay, 11-pin 3PDT, 12V/24V/110V/220V coil

    $35.69
    SKU: ATO-EMR-MK3P1
    11-pin 3PDT Electromagnetic relay are available for 12V DC, 24V DC, 110V AC and 220V AC coil volatge, with rate load 10A/250V AC 28V DC. Transparent housing, small size, long service life and high reliablity.

    Electromagnetic Relay, 14-pin 4PDT, 12V/24V/110V/220V

    $34.77
    SKU: ATO-EMR-13F4Z
    Compact-size electromagnetic relay, 14-pin 4PDT, available for 12V DC/24V DC/110VAC/220V AC coil voltage for your selection, contact load 10A/240V AC 28V DC, transparent housing, silver alloy contacts with long lifespan.

    Electromagnetic Relay, 3PDT, 12/24/110/220V coils

    $34.46
    SKU: ATO-EMR-HH53P
    General purpose electromagnetic relay, 11 pins, 3PDT contact type, available for the common coil voltages of 12V DC, 24V DC, 110V AC and 220V AC, rated load 5A/240V AC 28V DC, compact size, favorable price and high quality.

    Electromagnetic Relay, 4PDT, 12/24/110/220V coils

    $34.62
    SKU: ATO-EMR-HH54P
    Small-size electromagnetic relay with 14-pin 4PDT, has a wide coil volatge available for the selection like 12V DC, 24V DC, 110V AC and 220V AC, and contact load is 3A/240V AC 28V DC, economical price and high reliability.

    Electromagnetic Relay, 8-pin DPDT, 12V/24V/110V/220V

    $34.77
    SKU: ATO-EMR-13F2Z
    Available for 12/24V DC, 110/220V AC coil voltage, electromagnetic relay is characterized with DPDT contact configuration, 8 pins with plug-in terminals, contact load 10A/240V AC 28V DC. Favorable price and high quality.

    Electromagnetic Relay, 8-pin DPDT, 12V/24V/110V/220V coil

    $35.69
    SKU: ATO-EMR-MK2P1
    Electromagnetic relay with plug-in terminals, 8 pins DPDT, silver alloy contacts, optional coil volatge 12V DC, 24V DC, 110V AC and 220V AC, contact load 10A/250V AC 28V DC, compact size and plastic housing.

    Electromagnetic Relay, DPDT, 12/24/110/220V coils

    $34.46
    SKU: ATO-EMR-HH52P
    Electromagnetic relay features with 8 pins, DPDT(Double Pole Double Throw), clear and plastic housing. The coil voltages of 12V DC, 24VDC, 110V AC and 220V AC are available with contact load 5A/240V AC 28V DC and it is widely used in automatic control system.

    Safety Relay 24V AC/DC 2NO

    $298.65
    SKU: ATO-SR-E10X
    Low cost DC 24V safety relay, AC power consumption 5.5VA, DC power consumption 2.5W, AC supply voltage 24V, 42V, 115V, 120V, 230V, or 240V, frequency 50-60Hz. ATO provides high-performance safety relay, safely control the environment around any time to monitor.

    Solid state relay SSR-10DA, 10A 3-32V DC to AC

    From $34.51
    SKU: ATO-SSR-DH10DA
    SSR-10DA, 10A single phase solid state relay, DC to AC, control voltage 3-32V DC, load volatage 24-480V AC. Excellent quality, high reliability and long lifetime.

    DC Voltage Monitoring Relay, Under/Over Voltage, 12V/24V/48V DC

    $95.98
    SKU: ATO-MR-DVRD
    DC voltage monitoring relay with 2 C/O contacts (2 Form C or DPDT) provide protection for the equipment from undervoltage and overvoltage in DC circuit 12V, 24V, 36V or 48V, adjustable trip delay time, LED indicator for working state, DIN rail mounting, compact design, good quality and low price.

    Multifunctional Monitoring Relay, Phase/Voltage, 3 Phase, 208-480V AC

    $148.23
    SKU: ATO-MR-JVR8002
    Phase voltage monitoring relay, used for phase loss, phase sequence, voltage unbalance, overvoltage and undervoltage monitoring with 3 phase power supplied by 208-480V AC 50/60Hz, also with timer & counter function, 0.1-30s adjustable delay time, compact size relay with 1 CO + 1 NC contacts, real-time LCD display for voltage, fault and operation state, DIN rail mounting. High accuracy and favorable price.

    Safety Relay 24V AC/DC 3NO+1NC

    $286.71
    SKU: ATO-SR-E16P
    High security relay is mainly used for AC 50-60Hz, supply voltage 24VAC/DC, safety contacts 3NO, auxiliary contact 1NC, AC power consumption 2.2VA, DC power consumption 2W. Extremely light, good value for money, direct sales from the manufacturer and free shipping.

    Solid state relay SSR-10AA, 10A 70-280V AC to AC

    From $35.98
    SKU: ATO-SSR-DH10AA
    SSR-10AA single phase solid state relay 10A, AC control, input 70-280V AC output 24-480V AC, high quality and nice reliablity, suitable for frequent switching occasion.

    Voltage Monitoring Relay, Under/Over Voltage, 1 Phase, 110-240V AC/DC

    $105.67
    SKU: ATO-MR-SVR1000
    Single phase voltage monitoring relay, suitable for undervoltage and overvoltage monitoring of DC 12V, AC/DC 24-48V or AC/DC 110V-240V, adjustable delay time, compact size relay with 1 CO & 1 NC contacts, real-time LCD for voltage, operation and fault status display, DIN rail mounting, high quality and low cost.

    Solid state relay SSR-15DA, 15A 3-32V DC to AC

    From $34.67
    SKU: ATO-SSR-DH15DA
    Low price 15 amps single phase solid state relay, SSR-15DA, 3-32V DC control voltage and 24-480V AC load voltage, with LED indicator. Strong structure and high performance.

    Solid state relay SSR-15AA, 15A 70-280V AC to AC

    From $35.69
    SKU: ATO-SSR-DH15AA
    Single phase solid state relay (SSR), AC control, load current 15 Amp, input voltage 70-280V AC and load voltage 24-480V AC, with LED indicator and panel mount. High reliability and favorable price.

    Solid state relay SSR-25DA, 25A 3-32V DC to AC

    From $40.51
    SKU: ATO-SSR-DH25DA
    SSR-25DA, single phase solid state relay, DC control, 3-32V DC input voltage, 25A load current, 24-480V AC load voltage. High quality yet low price SSR suitable for commercial and industrial applications.

    Solid state relay SSR-25AA, 25A 70-280V AC to AC

    From $40.77
    SKU: ATO-SSR-DH25A
    SSR-25AA, single phase solid state relay, zero cross, load current rating 25 amp, AC control voltage 70-280V AC, load voltage 24-480V AC, panel mount, strong structure and high reliability.