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

    5 out of 5 based on 2 reviews | Write a review
    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, compact size and high performance.
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    Delivery date: 6-12 days


    15A 3-32V DC 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-DH15DA
    Input Control voltage range 3-32V DC
    Max. input current 12mA
    Must operate voltage 2.8V DC
    Must release voltage 1.5V DC
    Output Load voltage range 24-480V AC
    Peak voltage 800V AC
    Maximum load current 15A
    Maximum off-state leakage current 2mA
    Maximum off-state time 10mS
    Maximum on-state voltage drop 1.5V
    General Type DC to AC, single phase
    Dimension L – W – H (mm) 57.4х44.8х28
    Weight 100g
    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 SSR SSR-15A heat sink dimension
    Material Aluminum
    Dimension Roof Size: 60 x 50mm
    Foot Size: 80 x 50mm
    Height: 50mm
    Mounting Size Mounting Hole Diameter: 3mm
    Threaded Hole Distance: 48mm
    Weight 115g
    Application ≤15A single phase SSR solid state relay

    Dimensions (Unit: mm)

    Single Phase SSR Dimensions

    Wiring Diagram

    Single Phase DC to AC SSR Wiring Diagram

    Tips: Characteristics of solid state relays

    The solid state relay is a non-contact electronic switch with isolation function. There are no mechanical contact parts in the switching process, so the solid state relay has the same function as the electromagnetic relay, but also has such characteristics as logic circuits compatible, vibration resistance, mechanical shock resistance, unlimited installation position, good moisture proof and mildew proof and corrosion resistance, excellent performance in preventing explosion and preventing ozone pollution, small input power, high sensitivity, small control power, good electromagnetic compatibility, low noises and high working frequency.

    1. SSRs have no internal mechanical parts. Their structure adopts full-sealed perfusion. Therefore, SSRs have advantages such as vibration resistance, corrosion resistance, long life and high reliability. Their switch life is up to 10.1 million times.
    2. Low noises. AC solid state relays use zero-crossing triggering technology, thus effectively reducing the voltage rise rate dv/dt and current rise rate di/dt on the line so that the SSRs’ long-term work has minimal interference with the city power.
    3. Switching time is short, about 10ms. So SSRs can be used in higher frequency applications.
      Optoelectronic isolation between input circuits and outputs circuits is used, and insulation voltage is more than 2500V.
    4. Low input power consumption, compatible with TTL and COMS circuits.
    5. Output protection circuit.
    6. High load capacity.

    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.

    Existing reviews of Solid state relay SSR-15DA, 15A 3-32V DC to AC
    This solid state relay SSR-15DA worked as expected!
    I bought this to power on/off a second power supply for my LED strips (around my house), it seems to work as advertised.
    From: Gruver | Date: 08/01/2023
    Was this review helpful? Yes No (0/0)
    Easy to install, works well
    I bought this item so that I could use low voltage control to enable and disable my oil-less air compressor. It is easy to install. My air compressor draws about 16 amps at 120VAC single phase. So far this solid state relay is performing as expected.
    From: wje | Date: 21/04/2022
    Was this review helpful? Yes No (0/0)
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