Brushless Motors

Power outputs0,075 - 3kW
Voltages<= 690V
Frames63 - 100
Efficiency classesIE4
SectorsTextile / Glass / Plastic
Most common applicationsMachine tools / Fans / Stretsching units for synthetic fibres

These closed, externally ventilated type motors have dimensions and designs in accordance with IEC standards. The advantage of these motors 
is the total absence of maintenance which, together with the possibility of having a precise speed control, makes them suitable for a wide range 
of applications where speed regulation independent of load values is required. Permanent magnet synchronous motors of BQ series can be driven only by frequency converter and can be designed for very high speed applications.

The series name identifies the combination of materials of the main mechanical components of the engine (case and endshields):

Series name1BQ2BQ3BQ4BQ5BQ
D-End EndshieldAluminumCast-IronAluminumCast-Iron
N-End EndshieldAluminumCast-Iron
 Standard configurationSpecial configuration
StandardsApplicable IEC EN 60034Specification on request
Polarity / SpeedSingle-
Maximum speed4000rpm6000rpm
Minimum switching frequency by inverter2,6kHz4kHz
Cooling methodIC 411IC 416
IP Index of ProtectionIP55IP56 / IP65
Insulaton ClassFH
Temperature rise ClassBF / H
Altitude<1000m a.s.l.up to 4000m a.s.l.
Power supplyDa inverter-
DutyS1S2 … S9
Ambient temperature-20°C / +40°COn request
Shaft extensionD-EndD-End + N-End
Shape of the shaft extensionCylindric, with keyConical / special
Material of the shaftC40 SteelStainless steel
BearingsBallRoller / Angular
Seal ringMIMLabyrinth / Viton / Silicon
Material of the screwsGalvanisedStainless steel
Vibration gradeA (with half key)B
Material of the fanPolyamideAluminum
Material of the fan coverSteel-
Lifting eyeboltFrom 100 frameOn request
Terminal box - positionOn top (Alu) - On the right (Cast Iron)On top - On the left - Flying leads
Terminal box - materialAluminumCast-iron
Cable entryOn the right sideRotatable in step of 90°
Q.ty of terminals6-
Special solutions

Insulation class H
Stator windings with enhanced insulation system for inverter
Special voltage and/or frequency

Bi-metal protection
PTC Thermistors
PT100 Thermo-resistances

Arrangment for vibration detector

Terminal box
Metal cableglands
Position of terminal box
Flying leads
Special cable entry

Double-shielded with special grease WT type
Oversized bearings
D-End re-greasing system
Locked D-End bearing

Shaft and Fan
Forced ventilation (IC 416)
Special shaft extension and/or flange
Metal fan
Vibration grade B

Special painting colour (std RAL5010)

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Industria Scientifica Generale Elettromeccanica Vicenza (I.S.G.E.V.) S.p.A.
Reg. Cap. € 520.000 fully paid up
REA 87642/VI
Reg. Imp. Vicenza n. 3803
No VAT: 00170430243

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