DIN 42673-3:1983 IMB3型带滚动轴承全密封风扇冷却鼠笼三相感应电机.相关框架尺寸.防火外壳"d"型输出功率
Totally enclosed fan-cooled three-phase induction motors with squirrel-cage, type IM B 3, with rolling bearings; relationship frame sizes - output ratings for type of protection flameproof enclosure "d"