Brushless Motors
| Power outputs | 0,075 - 3kW |
| Voltages | <= 690V |
| Frames | 63 - 100 |
| Efficiency classes | IE4 |
| Sectors | Textile / Glass / Plastic |
| Most common applications | Machine 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 name | 1BQ | 2BQ | 3BQ | 4BQ | 5BQ | |
| D-End Endshield | Aluminum | Cast-Iron | Aluminum | Cast-Iron | ||
| Case | Aluminum | Cast-Iron | ||||
| N-End Endshield | Aluminum | Cast-Iron | ||||
| Standard configuration | Special configuration | |
|---|---|---|
| Standards | Applicable IEC EN 60034 | Specification on request |
| Polarity / Speed | Single | - |
| Maximum speed | 4000rpm | 6000rpm |
| Minimum switching frequency by inverter | 2,6kHz | 4kHz |
| Cooling method | IC 411 | IC 416 |
| IP Index of Protection | IP55 | IP56 / IP65 |
| Insulaton Class | F | H |
| Temperature rise Class | B | F / H |
| Altitude | <1000m a.s.l. | up to 4000m a.s.l. |
| Power supply | Da inverter | - |
| Duty | S1 | S2 … S9 |
| Ambient temperature | -20°C / +40°C | On request |
| Shaft extension | D-End | D-End + N-End |
| Shape of the shaft extension | Cylindric, with key | Conical / special |
| Material of the shaft | C40 Steel | Stainless steel |
| Bearings | Ball | Roller / Angular |
| Seal ring | MIM | Labyrinth / Viton / Silicon |
| Material of the screws | Galvanised | Stainless steel |
| Vibration grade | A (with half key) | B |
| Material of the fan | Polyamide | Aluminum |
| Material of the fan cover | Steel | - |
| Lifting eyebolt | From 100 frame | On request |
| Terminal box - position | On top (Alu) - On the right (Cast Iron) | On top - On the left - Flying leads |
| Terminal box - material | Aluminum | Cast-iron |
| Cable entry | On the right side | Rotatable in step of 90° |
| Q.ty of terminals | 6 | - |
Windings
Insulation class H
Tropicalisation
Stator windings with enhanced insulation system for inverter
Special voltage and/or frequency
Protections
Bi-metal protection
PTC Thermistors
PT100 Thermo-resistances
Transducers
Arrangment for vibration detector
Terminal box
Metal cableglands
Position of terminal box
Flying leads
Special cable entry
Bearings
Sealed
Double-shielded
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
Painting
Special painting colour (std RAL5010)