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

    Cheap SSR-25DA, 3-phase solid state relay, 25A load current rating, DC control, input voltage 3-32V DC load voltage 24-480V AC, high structural strength, good impact resistance.
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    Delivery date: 6-12 days

    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.

    3 Phase SSR-25DA Specification

    Basics Model ATO-SYTH2548ZD3
    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 Need heat sink for cooling

    Solid State Relay Dimensions

    3 phase SSR dimensions

    Three Phase SSR Wiring Diagram

    3-phase SSR wiring diagram 3-32VDC

    Tips: Single-phase solid state relay and three-phase solid state relay

    Single-phase solid state relay 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 solid state relay integrates three single-phase AC solid state relays, 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, solid state relay and baseplate is greater than 2 000 V AC. The other basic indicators are the same as corresponding single-phase solid state relay. 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 solid state relays may be more reliable.

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