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    Solid State Relays

    A solid state relay (SSR) is a non-contact switch composed of microelectronic circuits, discrete electronic devices, electronic power devices, realizing the isolation between the control side and load side. A solid state relay is applied to control high current load with inputting a small control signal. Compared with the electromagnetic relay (EMR), the solid state relay is more reliable, non-contact, long life, high speed and little interference, and it has been widely used.
    ATO provides single phase and three phase solid state relays, including DC-AC and AC-AC, with load current from 10A to 120A. In addition, compact-size industrial solid state relays are provided with DC control AC, load current ranging 60 amp, 80 amp, to 350 amp. More details are as below and you can select a most suitable one to switch on/off your facilities or machines.

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    Solid state relay, 3 phase, SSR-40AA, 40A 70-280V AC to AC

    $78.46
    SKU: ATO-SSR-TH40AA
    Favorable price SSR-40AA solid state relay with 40 amp load current, 3 phase SSR, 70-280V AC control voltage, 24-480V AC load voltage, zero cross, LED indicator, compact size and excellent quality.

    Solid state relay, 3 phase, SSR-40DA, 40A 3-32V DC to AC

    $72.31
    SKU: ATO-SSR-TH40DA
    Low price 40 amp solid state relay, 3 phase SSR-40DA, DC control AC, input voltage 3-32V DC, load voltage 24-480V AC, zero cross switch type, LED working indicator, panel mount, best SSR for heavy industries.

    Solid state relay, 3 phase, SSR-60AA, 60A 70-280V AC to AC

    $93.84
    SKU: ATO-SSR-TH60AA
    Cheap 60A AC to AC solid state relay, SSR-60AA, 3 phase, zero crossing, 70-280V AC control voltage, 24-480V AC load voltage, panel mount, strong structure and high reliability.

    Solid state relay, 3 phase, SSR-60DA, 60A 3-32V DC to AC

    $84.62
    SKU: ATO-SSR-TH60DA
    3 phase 60 Amp solid state relay, SSR-60DA, zero cross switching type, 3-32V DC control voltage, 24-480V AC load volatage, LED indicator, panel mount, high reliability, long lifespan and low price.

    Solid state relay, 3 phase, SSR-80AA, 80A 70-280V AC to AC

    $105.67
    SKU: ATO-SSR-TH80AA
    Low price SSR-80AA solid state relay, 3 phase SSR, zero-cross switching type, AC control AC, input voltage 70-280V AC, load current 40 amp, load volatge 24-480V AC, panel mount, high quality, good stability and long lifespan.

    Solid state relay, 3 phase, SSR-80DA, 80A 3-32V DC to AC

    $97.42
    SKU: ATO-SSR-TH80DA
    Affordable price 3 phase solid state relay SSR-80DA, load current rating to 80A, control voltage 3-32V DC, load voltage 24-480V AC, zero cross, panel mount, excellent quality, long life and brand new, ideal SSR for heavy industries.

    Solid state relay, 3 phase, SSR-100AA, 100A 70-280V AC to AC

    $119.23
    SKU: ATO-SSR-TH100AA
    Low cost and high quality SSR-100AA, 3 phase solid state relay, 100 Amp load current, AC control AC, input voltage 70-280V AC, load voltage 24-480V AC, LED indicator, panel mount, high reliability and good performance.

    Solid state relay, 3 phase, SSR-100DA, 100A 3-32V DC to AC

    $110.76
    SKU: ATO-SSR-TH100DA
    Cheap 3-phase solid state relay SSR-100DA, zero cross switching type, 3-32V DC control voltage, 100amp load current, 24-480V AC load voltage, with LED indicator, panel mount, strong structure and high performance.

    Solid state relay, 3 phase, SSR-120AA, 120A 70-280V AC to AC

    $135.95
    SKU: ATO-SSR-TH120AA
    Favorable price SSR-120AA solid state relay, 3 phase, 120 amp load current, 70-280V AC control voltage, 24-480V AC load voltage, zero-crossing switch, LED indicator, panel mount, high quality and long life time.

    Solid state relay, 3 phase, SSR-120DA, 120A 3-32V DC to AC

    $126.38
    SKU: ATO-SSR-TH120DA
    Low price 3-phase solid state relay SSR-120DA, load current 120 Amp, zero cross, DC to AC, 3-32V DC control voltage, 24-480V AC load voltage, with LED indicator, panel mount, strong structure and excellent quality.

    Industrial Solid State Relay 60A, 3-32V DC to AC SSR

    $59.61
    SKU: ATO-GYSSR-60DA
    Low price 60 Amp industrial solid state relay, single phase SSR-60DA, can control high current 24-440V AC with lowe voltage 3-32V DC, zero-crossing switch type, fast switching, compact design, high reliability and long lifespan.

    Industrial Solid State Relay 80A/100A/120A, DC to AC SSR

    $68.84
    SKU: ATO-GYSSR-120DA
    Compact-size industrial single phase solid state relay can be selected with load current 80A, 100A, 120A, with low control voltage 3-32V DC and low control current 7-32mA for high current 24-440V AC, high switching speed, no spark and no noise. Best DC to AC SSR for automation fields.

    Industrial Solid State Relay 150A/200A/250A/300A DC-AC SSR

    $92.86
    SKU: ATO-GYSSR-200DA
    Reliable industrial single phase solid state relay has optional load current 150A/ 200A/ 250A/ 300A to suit different automatic control requirements. DC to AC SSR can drive high current 24-440V AC with low control voltage 3-32V DC, safe and fast switching, high-strength structure, compact size and favorable price.

    Industrial Solid State Relay 350A, 3-32V DC to AC SSR

    $146.18
    SKU: ATO-GYSSR-350DA
    High current solid state relay has 350 Amp load current, designed for industrial automation fields. Single phase SSR, zero-crossing switch type, with 3-32V DC control 24-440V AC, LED working status indication, screw mounting and compact size, safe and fast switching.

    Solid State Relay Heat Sink for Industrial SSR/3-Phase SSR

    $66.15
    SKU: ATO-SSR-HS
    High quality aluminum SSR heat sink is designed for 3-phase solid state relay less than 120A or industrial single phase solid state relay 60A - 350A, helpful to dissipate the heat and protect your solid state relay.