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    Solid state relay, 3 phase, SSR-100AA, 100A 70-280V AC to AC

    SSR-100AA 100A Solid State Relay, 3 phase, voltage input 70-280V AC output 24-480V AC, excellent quality, high reliability, good performance, adaptable to corrosion, moisture, dust and other harsh environments.
    SKU: ATO-TH10048ZA2

    Solid State Relay, 3 phase, load current 100A, AC control, LED indicator, zero-crossing switch, built-in RC, optical isolation, no electric spark, no noise, no contact, high switching speed.


    Basics Model ATO-TH10048ZA2
    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 AC-AC
    Load voltage 24~480V AC
    Load current 100A
    Control voltage 70~280V AC
    Control current ≤12mA
    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 needed for cooling


    3 phase SSR dimensions

    Wiring diagram

    3 phase SSR wiring diagram 70-280VAC

    Tips: SSR-ordinary type of Triac output and enhanced type of unidirectional SCR anti-parallel output

    In the case of inductive load, when the SSR is turned off by the on-state, a large voltage rise rate dv/dt (commutation dv/dt) will be generated at both ends of the triac due to inconsistent phase of current and voltage. The value exceeding the triac's commutation dv/dt (typically 10V/μs) will lead to delayed turn-off, or even failure. However, the unidirectional triac is unipolar and only affected by satic voltage rising rate dv/dt (typical value 100V/μs). The commutation dv/dt of ordinary type SSR formed by only triac has been greatly improved compared to enhanced SSR composed of two unidirectional SCR in anti-parallel, so the enhanced SSR should be selected in inductive or capacitive load field.

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