Brake motors

Power outputs0,18 - 75kW
VoltagesUp to 690V
Frames71 - 280
Efficiency classesIE2 - IE3, where applicable
SectorsMarine / Rail / Industrial / Steel Industry
Most common applicationsHandling and Lifting Systems

These motor series are specifically designed for heavy-duty applications where maximum reliability is required. They are asynchronous three-phase self-braking motors with a DC disk brake that can be supplied by a rectifier supplied with the motor.

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

Series name1BF2BF3BF4BF5BF
D-End EndshieldAluminumCast-IronAluminumCast-Iron
N-End EndshieldAluminumCast-Iron
BF Motor Series
 Standard configurationSpecial configuration
StandardsApplicable IEC EN 60034Specification on request
Polarity / SpeedSingleDouble / Triple
Cooling methodIC 411IC 410 / IC 416 / IC 418
IP Index of ProtectionIP55IP56 / IP65 / IP66
Insulaton ClassFH
Temperature rise ClassBF / H
Altitude<1000m a.s.l.up to 4000m a.s.l.
Power supplyMainFrequency converter
RotorSquirrel cage-
Material of the rotor windingsAluminum-
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 shaftSteel C4039NiCrMo3 / Stainless steel
BearingsBallRoller / Angular
Seal ringMIMLabyrinth / Viton / Silicon
Material of the screwsGalvanisedStainless steel
Vibration gradeAB
Material of the fanPolyamideAluminum
Material of the fan coverSteelCast-iron
Lifting eyeboltFrom 100 frame and aboveOn request
FeetFixed (Cast-iron) / Removable (Aluminum)-
Terminal box - positionOn the right side, when seen from D-End On top ( Aluminum)On top(§) / On the left(§) / Flying leads
Terminal box - materialAluminum (cast-iron for 200 and 225)-
Cable entryOn the right sideRotatable in step of 90°
Q.ty of terminals (single polarity)6-
Q.ty of terminals (double polarity)612
Q.ty of terminals (triple polarity)12-
Supply to the brakeDCAC
Feeding values to the brake230V - 50Hz/60HzOn request

 (§): Available only on 5B Motor series

Special solutions

Insulation class H
Stator windings with enhanced insulation system for inverter
Special voltage and/or frequency
Double impregnation
Encapsulation of the windings

Bi-metal protection
PTC Thermistors
KTY Thermo-resistances
PT100 Thermo-resistances
PT1000 Thermo-resistances
Anticondensation heaters

Arrangment for vibration detector

Painting and solutions for extreme environment
Special painting colour (std RAL5010)
Special painting process for agressive environment
Solutions for high temperatures
Anti-rain canopie
Anti-sun canopie
IP56 protection degrees

Manual release lever
Sealed braking unit
Axial brake release

Sealed bearings
Roller bearings
Insulated bearings
Hybrid bearings
Bearings for high temperatures
Angular bearings
Re-greasing systems
D-End fixed bearing (only with Cast-iron endshield)
Rotating labyrinth
Silicon ring
Viton ring

Shaft and Fan
Special shaft extension and/or special flange
Second shaft extension
Non-ventilated motor (IC410)
Forced ventilation (IC416)
Non-ventilated motor, externally cooled (IC418)
Metallic fan
Vibration grade B (with half or full key)

Terminal box
12 terminals
Special cableglands
Position of terminal box
Direction of cable entry
Material of the terminal box
Flying leads
Auxiliary terminal box
Special cable entry


These motors are also available in marine configuration, with special painting and metal cable glands.
These motors are according to the rules of the following certification bodies:

RINA (Certification  No. ELE309516CS001)

Other certification bodies available on request

Download PDF sheet

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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