1. Poles: 2,4,6 2. Easy to adjust exciting force 3. Stepless speed regulation 4. Full enclosed structure Product Description:Voltage: 380VFrequency: 50HZInsulation class: BFunctioning: continual serviceAmbient Temperature: less than 40°CAltitude: under 1000 metersFeatures:1. Easy maintenance.2. High strength, low noise.3. Proper match between exciting force and throughput, large exciting force.4. ...