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    Solid state relay SSR-25AA, 25A 70-280V AC to AC

    SSR-25AA, single phase solid state relay, load current rating 25 amp, AC control voltage 70-280V AC, load voltage 24-480V AC, general purpose SSR in panel mount, strong structure and high reliability.
    SKU: ATO-DH2548ZA2
    Free shipping
    Delivery date: 6-12 days

    Solid State Relay Features

    • SSR load current 25A (AC to AC)
    • Built-in RC
    • LED indication
    • Zero-crossing switch

    25AA SSR Specification

    Basics Model ATO-DH2548ZA2
    Size 57.4х44.8х28mm
    Weight 100g
    Mounting method Bolted
    Ambient temperature -20℃~75℃
    Humidity ≤95% (non-condensing)
    Technical parameters Control mode AC-AC
    Load voltage 24~480V AC
    Load current 25A
    Control voltage 70~280V AC
    Control current AC ≤12mA
    On-state voltage drop ≤1.5V
    Off-state leakage current ≤2mA
    Off-state time ≤10ms
    Dielectric strength 2500V AC (1min)
    Insulation resistance 500МΩ with 500V DC
    LED indication YES
    Cooling Need heat sink for cooling

    Solid State Relay Dimensions

    SSR single phase dimensions

    SSR Wiring Diagram

    SSR single phase wiring ac-ac

    Tips: Solid state relays' advantages and disadvantages

    Solid state relays work reliably and have a long life, no noise, no spark, no electromagnetic interference, fast switching speed, strong anti-interference ability, and small size, impact resistance, vibration resistance, anti-explosion, moisture proof, corrosion resistance, compatibility with logic circuits such as TTL, DTL, HTL. They can directly drive high-current load with tiny control signals.

    The main disadvantage is the existence of on-state voltage drop (corresponding cooling measures needed), off-state leakage current, common use in AC and DC conditions, fewer contact sets, as well as poor indicators including overcurrent and overvoltage and voltage rise rate, current rise rate, etc.

    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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