适用于：要求随负載的性质逐级调速的各种传动机械如机床、矿山、治金、纺织、印染、化工等行业。

特点：采用改变绕组的接法来变换电机的转速和輸出功率，使其与机械设备的负載特性相匹配，简化了变速系统，高效、节能。

变速方案：双速、三速、四速。

Applications: widely used in such industry which have step changes of rotational speed to meet the requirements of load character, as machine tools, mining metallurgy, textile, printing and dyeing, chemical industry and agricultural machinery, etc.

Features: simplify speed-changing systems by changing the connection to obtain different output and speed

Pole-changing mode: double, three or four speed.

产品相关参数                                 Technical data:

机座中心高：80～－280mm                      Centre height of frame: 80-280mm

功率范：0．35～82kw                          Power range: 0. 35-82kw

额定电压：380V（其他电压需另订协议）         Rated voltage: 380V(special should order)

额定频率：50Hz（或60Hz）                     Rated frequency: 50HZ or 60HZ

防护等级：IP54（或IP55）                     Protection class: IP54 or IP55

绝缘等级：F／H级                             Insulation class: F/H

工作制：S1                                   Duty type SI