ZFQZ DC motors are suitable for direct and reversal rotation, start and stop in hight frequency in a bad working circumstance. The motors are good overloading. The class of the motor power is in accordance with the international standard IEC34-13 " Technical criterions of Auxiliary Machine and Hoisting and Metallurgy". Outling mounting dimensions of the motors comply with IEC72 standard. Rated voltage: 220V, 440V, Excitation mode: separate excitation, the voltage of excitation is 180V or 310V. as required, the motors with other voltage level can be produced. Protection class: IP21S, IP23S, IP44 Cooling mode: IC06, IC17, IC37, ICW86 Main Frame size: 250, 280, 315, 355, 400, 450 Rated power: 37.3kw to 450 kw Z4 series DC motors main frame size: Z4-100, Z4-112, Z4-132, Z4-160, Z4-180, Z4-200, Z4-225, Z4-250, Z4-280, Z4-315, Z4-355, Z4-400, Z4-450. Rated output: 1.5kw to 600kw Standard rated voltage: 160V, 440V, or other voltage according to customer's needs. Rated speed: (rpm) 200, 300, 400, 500, 600, 750, 1000, 1500, 3000 Separate excitationis the basic excitation type of the motors. Nominal field voltage: 180V. other excitation voltage are also acceptable on request. Protection class: IP21S Mounting modes: IMB-3, IMB-35, IMV-1, IMV-15 Cooling method: IC06, IC17, IC37, other cooling methods also can be ordered. Welcome to enquire us for Z4 series DC motors