YE3 High Efficiency Motor

IE3 Efficiency Three-Phase Asynchronous Motor for Industrial Applications
Product Overview
The YE3 series is a range of high-efficiency three-phase induction motors used to drive industrial machinery. The motor converts electrical energy into rotational mechanical power for equipment such as pumps, fans, compressors, and conveying systems. Selecting the right motor involves more than choosing a power rating. Rated speed, starting requirements, operating duty, electrical supply, and installation dimensions must also match the driven equipment. Environmental conditions, including ambient temperature and installation altitude, should be considered during selection. For new equipment, provide the required operating conditions and mechanical interface details. For replacement projects, a clear photo of the existing motor nameplate and an installation drawing will help identify a suitable model. The final electrical ratings, efficiency, protection class, cooling method, and mounting dimensions are defined by the selected model’s technical datasheet.
Electrical Specifications
ParameterSpecification
Product SeriesYE3
Motor TypeThree-Phase Induction Motor
Rated Output0.55–315 kW, depending on model
Rated Voltage380 V
Rated FrequencyTo be confirmed by manufacturer
Number of Poles2, 4, 6, 8 or 10, depending on model
Rated Speed590–2980 rpm, depending on model
Rated CurrentRefer to the model-specific technical data
Efficiency ClassIE3; Grade 3 under GB 18613-2020, as stated in the catalog
Rated Efficiency75.0–96.0%, depending on model
Power FactorRefer to the model-specific technical data
Winding ConnectionTo be confirmed for the selected model and voltage
Rated DutyTo be confirmed by manufacturer
Mechanical Specifications
ParameterSpecification
Frame SizeH80–H355; available frame designations listed below
Mounting ArrangementIM B3, IM B5 and IM B35, as shown in the catalog
Shaft Diameter19–95 mm, depending on frame size and pole count
Shaft Extension40–170 mm, depending on frame size and pole count
Key / Keyway DimensionsRefer to dimensions F and G in the model-specific drawing
Bearing ArrangementNot specified in the YE3 catalog section; confirm with manufacturer
Net WeightCatalog-listed weight: 18–1990 kg, depending on model; net weight basis to be confirmed
Overall DimensionsRefer to the model-specific dimensional drawing
Technical Specifications
Frequently Asked Questions

Provide the required power, voltage, frequency, speed, mounting arrangement, and operating duty. Load details and site conditions help confirm suitability.

It may be suitable after checking electrical ratings, starting performance, shaft dimensions, mounting interfaces, and overall size. Matching power alone does not confirm compatibility.

Use only the frequency and corresponding ratings specified for the supplied motor. Do not assume that every model is rated for both frequencies.

Compatibility must be confirmed for the selected motor, inverter, speed range, and load. Low-speed cooling and insulation requirements should be reviewed.

Savings depend on the existing motor, operating load, efficiency, and annual running hours. A fixed saving percentage cannot be applied to every installation.