(0) Shopping cart
You have no items in your shopping cart.
Shopping Categories

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

    5 out of 5 based on 1 reviews | Write a review
    Low price SSR-80AA solid state relay, 3 phase SSR, zero-cross switching type, AC control AC, input voltage 70-280V AC, load current 80 amp, load volatge 24-480V AC, panel mount, high quality, good stability and long lifespan.
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days


    80 Amp 3-phase 70-280V AC to AC solid state relay (SSR) 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


    Model ATO-SSR-TH80AA
    Input Control voltage range 70-280V AC
    Max. input current 20mA
    Must operate voltage 70V AC
    Must release voltage 50V AC
    Output Load voltage range 24-480V AC
    Peak voltage 800V AC
    Maximum load current 80A
    Maximum off-state leakage current 8mA
    Maximum off-state time 10mS
    Maximum on-state voltage drop 1.5V
    General Type AC to AC, 3 phase
    Dimension L – W – H (mm) 105х74.8х33
    Weight 500g
    Dielectric strength (input to output) 4000V
    Dielectric strength (input, output to the base) 2500V
    Operating temperature -20℃~ 80℃
    Mount Panel
    Certification CE


    1. When the load is a resistive load, the maximum load current of the selected SSR should be 2~3 times greater than the actual load current;
    2. When the load is an inductive load, the maximum load current of the selected SSR should be more than 7~8 times the actual load current.
    3. When the maximum load current is higher than 10A, a heat sink must be installed to the solid state relay, or the SSR relay should be mounted on a metal base plate with heat dissipation effect, and the thermal grease is applied between them.

    Heat Sink

    Product Name Heat sink for 3 phase SSR SSR 150Amp heat sink dimension
    Material Aluminum alloy
    Dimension (L*W*H) 150*125*135mm
    Mounting Size Mounting Hole Diameter: 3mm
    Groove Distance: 84mm
    Weight 2.1kg
    Application ≤150A 3 phase solid state relay

    Dimensions (Unit: mm)

    3-phase SSR Relay Dimensions

    Wiring Diagram

    3-phase 70-280V AC to AC SSR Wiring Diagram

    Tips: Solid state relay's working principle

    SSR can be divided into AC SSR and DC SSR according to applications, which can act as the load switch in the AC or DC power supply respectively, and therefore, cannot be mixed. The AC SSR is taken as an example to illustrate the working principle solid state relay. As a whole, SSR has only two inputs (A and B) and two outputs (C and D), which is a four-terminal device.

    In its operation, as long as the A, B are given a certain control signal, you can control on-off state between C and D to achieve the switch function, in which the function of the coupling circuit is to provide an input/output channel for control signals input from A and B, but electrically disconnect input and output of SSRs to prevent the output from affecting the input. Components used in the coupling circuits are optical couplers, which has good action sensitivity, high response speed, high level of input/output insulation (withstand voltage). The load at the input is a light-emitting diode, which makes the SSR input very easy to match input signal level. In the usage, it can be directly connected with the computer output interface, that is, it is controlled by the logic level of "1" and "0".

    Existing reviews of Solid state relay, 3 phase, SSR-80AA, 80A 70-280V AC to AC
    Works well just like the old one I replaced.
    Purchase this 80A solid state relay to change my old one. Works well just like the old one I replaced. The size is very suitable, not too small or too big and it’s easy to install. Exactly what I needed. Nice product.
    From: Robert | Date: 27/11/2018
    Was this review helpful? Yes No (0/0)
    Load more reviews...
    Write your review for Solid state relay, 3 phase, SSR-80AA, 80A 70-280V AC to AC
    • Only registered users can write reviews
    • Bad
    • Excellent
    Customers who bought this item also bought

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

    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.