Electric Motors 1MB1

Electric Motors 1MB1

Three-phase, low-voltage asynchronous squirrel-cage motors in secured manufacturing with an aluminum frame.

Explosion-proof manufacturing: secured manufacturing EEx e II T1, T2 or T3.

Technical Data

ParameterElectric Motors 1MB1


Output range:

0,18 – 13,5 kW

Number of poles:


Rated voltage up to 3 kW:230VD / 400VY, 50Hz // 460VY, 60Hz
Rated voltage above 3kW:400VD / 690VY, 50Hz // 460VD, 60Hz
Frequency:50 / 60 Hz

IP 55

Shape:IM B3, IM B5, IM B35


  • Ambient temperature: -30°C to +40°C
  • Insulation: class F
  • Altitude: up to 1000 m


Three-phase asynchronous motors in secured manufacturing are designed for these passive environments:

  • Risk of the fire of flammables and flammable liquids.
  • Risk of the explosion of explosives specified in ČSN 332310 and ČSN 332320.
  • 1MB1 motors can be used in zone 2.
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