A3-phase IE3 AC Motors

High-efficiency, reliable, and versatile industrial motors for demanding applications.

LOHER 3-Phase IE3 AC Motors are engineered for energy efficiency, long service life, and low noise operation, even in challenging industrial environments. Designed to reduce energy costs and CO₂ emissions, these motors provide low total cost of ownership with easy maintenance and high reliability.

Key Features & Benefits

  • IE3 energy-efficient design with low energy consumption

  • High reliability in harsh and demanding environments

  • Long service life and easy maintenance

  • Low noise levels due to reduced vibration

  • Optimized ventilation system with internal and external cooling

  • Versatile options for customized applications

  • Reduced CO₂ emissions contributing to greener operations

FeatureSpecification
Motor Type3-phase IEC IE3 AC motor
Power Range0.75 – 200 kW
Poles2, 4, 6
Speed (rpm)3,000 / 1,500 / 1,000
Voltage / Frequency230/400V – 50Hz, 400/690V – 50Hz
Efficiency ClassIE3
Protection ClassStandard IP55, up to IP66
Motor ProtectionOptional
Insulation ClassF
MaterialAluminium, Cast Iron
CertificatesCE, UL/CSA, ATEX

Optional Features

  • MIG encoder

  • Special voltage/frequency configurations

  • PTC thermistor

  • Two shaft free ends (DE & NDE)

  • Isolation Class H

  • Custom flanges and shaft ends (including NEMA)

  • Terminal box on right or left side

  • Other coatings or colors

  • Fan cover with protection from rainfall and textile fibers

  • Various cooling types (IC410, IC416, IC418)

  • Winding for tropical environments

  • Winding heaters & condensation drain holes

  • Roller bearings with regreasing facility

  • Marine design adaptations

  • Forced ventilation (IC416)

  • Optional brake

Variations & Mounting Options

  • IEC Motor Sizes: IEC 80 – 315

  • Construction Types: B3, B5, B14A/B, B34 & B35

  • Output Shaft Diameter: 19 – 80 mm

  • Coating / Color: According to ISO 12944, standard RAL7030

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