... CE ISO warranty:12 months ZJR1-Z-series soft starter device type can work without three-phase AC motor in the process ... starter, starting torque, torque + sudden danced dynamic; 4. free and soft shutdown, downtime 0 to 60 seconds can be arbitrary choice ... function and reasonable prices; Scope of application: ZJR2-Z series soft starter motor applies to centrifuges, blower, compressor, transport planes, ...