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Vario series Low-voltage motors for tailored drive solutions Overview General description Technical data overview Features Customer benefits Typical applications General description The Vario Non-Ex series has a welded steel enclosure to ensure the highest degree of variability and versatility. Flange rings at the ends of the enclosure increase the torsional stiffness and ensure a vibration-proof mechanical design. The steel version allows various bearing concepts, dimensions can be adapted and a wide range of instruments can be mounted. The surface cooling using flat ribs combined with a defined inner cooling circuit with shaft-mounted fan inside the motor ensure optimum motor utilization. The copper bar rotors used as standard allow starting and operating parameters to be optimized for each and every application.

Technical data overview
Brief overview
Motors: AN.A / MLFB: 1PS0
Shaft heights: 355, 400, 450, 500, 560
Power range: 90 kW - 2100 kW
Number of poles: 2 - 16 poles, higher pole numbers on request
Voltage range: 380 V - 950 V
Rated voltage: 380 V / 400 V / 415 V / 500 V / 660 V / 690 V
Frequency converter: Line and converter operation
Degree of protection: IP55, IP56, IP65, IP67
Cooling type: IC 411, IC 416, IC 71W
Type of construction: IM B3, IM B35, IM V1
Enclosure: Welded steel
Bearings: Roller bearings, sleeve bearings
Standards: IEC, EN, DIN, VDE
Explosion protection: N.A.
Type of protection: N.A.
without explosion protection
Noise level: Max. 85 dB(A) (Load, 50 Hz), lower noise versions are available

Features Corrosion protection using special paint finishes according to the manufacturer's standard or customer's specifications. The motors are available as special version for polar regions down to -40 °C (without pre-heating of the motor) or desert regions up to +60 °C. When required, vertical motors can also be equipped with thrust bearings for high axial and radial loads. Wide range of connection systems for large cable cross-sections, high short-circuit strength or phase-segregated version. Optimized starting and operating parameters and high efficiency by using copper bar rotors as standard. With water jacket cooling, IC71W up to 60 % higher power density - compact and low noise. Admirably suited for converter operation with constant load torque and wide field-weakening range. top of page Customer benefits Complies with almost all of the user requirements and specifications (no deviation philosophy) High level of acceptance in the various sectors. For instance, Shell and DOW recommend these motors Complete project documentation guarantees minimum planning costs High degree of cost effectiveness and low operating costs as a result of the optimum electrical and mechanical values High degree of variability and versatility using a welded steel enclosure (to adapt the dimensions, mounted components) top of page Typical applications Compressors Fans Centrifuges Smoke extraction fans Test stands



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