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    Solid state relay, 3 phase, SSR-25DA, 25A 3-32V DC to AC

    $39.85
    SSR-25DA, 3-phase Solid State Relay, 25A, voltage input 3-32V DC output 24-480V AC, high structural strength, good impact resistance, anti-vibration, no noise and no contact.
    SKU: ATO-TH2548ZD3

    Solid State Relay, 3 phase, load current 25A, DC-AC, equipped with LED indicator, zero-crossing switch, built-in RC, fast switching speed, high reliabilty and efficiency, widely used in the automatic control areas.

    Specification

    Basics Model ATO-TH2548ZD3
    Size 105(L)х74(W)х33(H)mm
    Weight 500g
    Mounting method Bolted
    Ambient temperature -20℃~75℃
    Humidity ≤95%(non-condensing)
    Technical parameters Control mode DC-AC
    Load voltage 24~480V AC
    Load current 25A
    Control voltage 3~32V DC
    Control current 10-68mA
    On-state voltage drop ≤1.5V AC
    Off-state leakage current ≤10mA
    Off-state time ≤10ms
    Dielectric strength 2500V AC (1min)
    Insulation resistance 500МΩ with 500V DC
    LED indication YES
    Cooling Heat sink or fan need to be installed for cooling.

    Dimensions

    3 phase SSR dimensions

    Wiring diagram

    3-phase SSR wiring diagram 3-32VDC

    Tips: Single-phase SSR and three-phase SSR

    Single-phase SSR is a four-terminal active device, two of which are input terminals and the others are output terminals. Photo isolation lies between them. Once the input terminal is given DC or pulse signals to a certain current value, the output terminal can be changed from off-state to on-state.
    The three-phase AC SSR integrates three single-phase AC SSRs, and directly switches over three-phase load such as AC electrical machine, heater, etc. through a single input to achieve convenient control. The insulation voltage between each phase, input and output, SSR and baseplate is greater than 2 000 VAC. The other basic indicators are the same as corresponding single-phase SSR. It should be pointed out that in some cases such as laboratory teaching where actual load current is not large, three-phase SSR is more convenient to use. But large current leads to more heating. At this moment, three single-phase SSRs may be more reliable.

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