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

    $84.41
    SSR-80DA solid state relay, 3 phase, load current rating to 80A, voltage input 3-32V DC, load voltage 24-480V AC, zero cross, panel mount, excellent quality, long life, brand new and ideal for heavy industries.
    SKU: ATO-SSR-TH80DA
    Free shipping
    Delivery date: 6-12 days

    Solid State Relay Features

    80A 3-phase solid state relay (SSR) features compact size, high structural strength, good impact resistance, and strong shock resistance. The SSR offers a reliable switching the commercial and industrial loads, such as computer peripheral interface device, printing machine, molding machine, food machine, packaging machine, and so on.

    • Built in RC absorption
    • Photoelectric isolation
    • SCR output
    • LED indicator for operation status
    • Removable protective cover for safety
    • Panel mount
    • Zero-crossing switch type

    80 Amps 3 Phase SSR Specification

    Model ATO-SYTH8048ZD3
    Input Control voltage range 3-32V DC
    Max. input current 20mA
    Must operate voltage 4V DC
    Must release voltage 2.7V DC
    Output Load voltage range 24-480V AC
    Peak voltage 800V AC
    Load current 80A
    Maximum off-state leakage current 8mA
    Maximum off-state time 10mS
    Maximum on-state voltage drop 1.5V
    General Dimension L – W – H (mm) 105х74х33
    Weight 500g
    Dielectric strength (input to output) 4000V
    Dielectric strength (input, output to the base) 2500V
    Operating temperature -20℃~ 80℃
    Mount Panel
    Certification CE

    Note:
    * When the load current is higher than 10A, a heat sink must be added to the SSR or the SSR should be mounted on a metal base plate with heat dissipation effect, and apply the thermal grease between them. 
    When the load current is higher than is 40A or more, fan forced cooling or water cooling is needed.
    * Heat sink is Not included.

    Solid State Relay Dimension

    3 phase SSR dimensions

    Three Phase SSR Wiring Diagram

    3-phase SSR wiring diagram 3-32VDC

    Tips: How to choose the solid state relay (SSR)?

    The key is to choose a solid state relay with appropriate rated current. Unless otherwise specified, the rectifier, controllable module and other power module will be fine.

    The rated current of solid state relay (SSR) is selected according to different load types. The instantaneous current of resistive load, inductive load and capacitive load is large when starting. Even for the load with pure resistance, the resistance value is smaller in cold state because of the positive temperature coefficient, so it has a larger starting current. Moreover, the inductive load has higher back electromotive force.

    Capacitive loads have greater risks. The capacitor (load) is equivalent to a short circuit because the voltage at both ends of the capacitor cannot be mutated when starting. More attention should be paid to the selection of this type of load.

    It is important to point out that the surge current value of solid state relay (SSR) which is based on thyristor surge current should not be used as the basis for selecting the starting current of the load. Its prerequisite is a half (or one) cycle of power supply, that is, 10 or 20ms. The time of startup processes above-mentioned is ranging from hundreds of milliseconds, to several minutes, even to 10 minutes. Please pay high attention to this point.

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