-01 relay semi-automatic synchronization. + Practice learn textures and active principle of overload protection relays 3 phases. + Protected mode: protect too line, phase loss, jammed the rotor. + Source: 320 ~ 440VAC, 50 Hz. + Electrical installation Range: 0.5 ~ 6A. + Install boot time: 0.2 ~ 30s. + Install time: 0.2 ~ 10s. + Contact relay: 3A/250V.
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