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

    $43.77
    Favorable price AC to AC solid state relay (SSR), single phase, zero cross, switch the load current up to 40 amp, with input voltage 70-280V AC and load voltage 24-480V AC. Long service life and high quality.
    SKU: ATO-SSR-DH40AA
    *
    Free Shipping Worldwide
    Delivery date: 6-12 days

    Solid State Relay Features

    40A solid state relay (SSR) with 70-280V AC input features 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

    40 Amps AC to AC SSR Specification

    Model ATO-SYDH4048ZA2
    Input Control voltage range 70-280V AC
    Max. input current 15mA
    Must operate voltage 70V AC
    Must release voltage 50V AC
    Output Load voltage range 24-480V AC
    Peak voltage 800V AC
    Load current 40A
    Maximum off-state leakage current 2mA
    Maximum off-state time 10mS
    Maximum on-state voltage drop 1.5V
    General Dimension L – W – H (mm) 57.4х44.8х28
    Weight 135g
    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, it also needs to add fan cooling or water cooling.

    * Heat Sink for Single Phase SSR

    • Material: Aluminum
    • Mounting Size: Mounting hole diameter - 3mm, threaded hole distance - 48mm
    • Dimension: 125*70*50mm (L*W*H)
    • Weight: 250g
    • Application: Less than 40A single phase solid state relay

    Solid State Relay Dimension

    SSR single phase dimensions

    SSR Wiring Diagram

    SSR single phase wiring ac-ac

    Tips: Installation methods of solid state relays

    Horizontal W-type and vertical L-type of solid state relays in small sizes are suitable for direct welding installation on the printed circuit board (PCB). Vertical L2-type is not only suitable for welding installation on circuit board, but also can be applied to socket installation on the circuit board. In the selection of SSRs used in PCB under small current standard, welding temperature should be less than 250 ℃, and time is limited to 10s since the lead terminal is made of high thermal conductivity materials. Given the ambient temperature, derating use can be considered if necessary. The load current is generally controlled within 1/2 of the rated value.
    K-type and F-type are suitable for installation on radiators and instrument baseplates. In case of high-power SSRs (K-type and F-type package) installation, it should be noted that contact surface with the radiator is smooth, and is coated with thermal grease. The larger the installation torque, the smaller the contact resistance. It is necessary to equip high-current leads with cold welding flakes to reduce contact resistance of the lead wire.

    Solid state relay (SSR) is simple but widely used in the automation fields. Thus, it is not complex to wire a solid state relay. In this vedio, ATO takes a 40 Amp SSR (DC - AC) for example to show the wiring of a SSR and then switch on/off a motor with this SSR.

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