YE4-280M-2 Three-phase Asynchronous V1 Motor Mounting 90kw 50Hz Ip55

Brief Introduction

When industrial facilities demand a motor that combines robust power delivery, proven reliability, and straightforward installation, the SIMO YE4-280M-2 three-phase asynchronous motor stands out as a compelling choice. Manufactured by Xi'an SIMO Motor Co., Ltd. - one of China's most established motor producers with decades of engineering heritage - this 90 kW, 2-pole induction motor is purpose-built for continuous-duty applications across heavy industry. Whether driving large-scale pumps, high-capacity fans, compressors, or conveyor systems in mining, power generation, metallurgy, and chemical processing plants, the YE4-280M-2 delivers consistent, efficient performance day after day. Its design adheres to the JB/T13299 specification for high-efficiency three-phase induction motors, and the unit carries CE certification, confirming compliance with European safety, health, and environmental protection requirements. From the very first moment of installation, the motor's v1 motor mounting configuration (IM V1 per IEC 60034-7) proves its practical advantage: the vertical shaft-down orientation allows direct, space-efficient integration into pump sets, vertical turbine drives, and shaft-mounted equipment where floor space is at a premium and vertical alignment is the natural fit.

At the heart of the YE4-280M-2 is a meticulously engineered electromagnetic system. Rated at 90 kW output power with a nominal speed of 2,930 r/min on a 380 V / 50 Hz three-phase supply, the motor draws 160 A at full load with a power factor of 0.89. Its energy efficiency reaches 95.8%, placing it firmly within the IE2 efficiency class as defined by IEC 60034-30 - a meaningful improvement over legacy Y and Y2 series motors that translates directly into reduced electricity costs over the motor's operational lifetime. The stator and rotor cores are built from low-loss silicon steel laminations with an optimized slot combination that minimizes both iron losses and stray losses. The stator windings use 99.9% pure copper conductors, hand-inserted to ensure every slot is fully packed and free of defects, while the rotor employs a precision-cast aluminum cage bonded to a high-grade silicon steel core for superior induction performance. The motor operates under S1 continuous duty rating, meaning it can sustain its full rated output indefinitely without thermal degradation - a critical requirement for process industries where unscheduled downtime carries enormous cost.

Protection and thermal management are equally well addressed. The enclosure is rated IP55, providing complete protection against dust ingress and low-pressure water jets from any direction, making it suitable for harsh environments including outdoor installations, chemical plants, and mining sites. The cooling system follows the IC 411 method - totally enclosed, fan-cooled (TEFC) - with an externally mounted fan that forces ambient air over the ribbed frame surface, maintaining optimal operating temperatures even under sustained full-load conditions. Insulation is Class F (155°C thermal rating), but the motor is designed so that actual temperature rise is evaluated against Class B limits, leaving a generous 30°C safety margin that significantly extends winding life and enhances long-term reliability. Both the drive-end and non-drive-end bearings are SKF-equivalent 6314/C3 deep-groove ball bearings, selected for low friction, minimal vibration, and extended service intervals.

One of the standout practical features of the YE4-280M-2 is its v1 motor mounting arrangement (IM V1). In this configuration, the motor shaft is oriented vertically with the drive end pointing downward, and the motor is secured via a flange at the top end shield. This vertical shaft-down layout is specifically engineered for applications such as vertical inline pumps, vertical turbine pumps, and equipment where the driven machine sits below the motor. Compared to horizontal foot-mounted alternatives, the IM V1 arrangement eliminates the need for additional baseplates or pedestal structures, reduces overall footprint, simplifies shaft alignment with the driven equipment, and allows gravity to assist in proper rotor seating. The standardized flange dimensions follow IEC 60034-7, ensuring interchangeability with motors from other manufacturers that share the same frame size and mounting code - a significant advantage for maintenance planning and spare-parts management in multi-brand facilities.

The motor's terminal box is positioned on the top of the frame (standard for this mounting arrangement), providing convenient and safe access for electrical connections. The winding connection is delta (△) at 380 V, compatible with standard industrial three-phase power distribution systems worldwide. For environments where supply voltage may vary, the motor is designed to operate stably within ±5% voltage fluctuation and ±1% frequency deviation from rated values, at altitudes up to 1,000 m above sea level and ambient temperatures ranging from −15°C to +40°C.

For plant engineers and procurement specialists evaluating replacement or upgrade options, the YE4-280M-2 offers a compelling value proposition. At a net weight of 522 kg, the motor balances structural rigidity with manageable installation logistics. Its compatibility with existing IEC-standard mounting dimensions means that facilities currently operating older Y2-series or equivalent motors can often perform a direct swap without modifying foundations, base frames, or coupling arrangements. The combination of IE2-class efficiency, Class F insulation with Class B temperature-rise assessment, IP55 protection, and precision bearings results in a motor that not only reduces energy consumption by approximately 5–10% compared to conventional alternatives, but also delivers longer service intervals, lower noise and vibration levels, and reduced total cost of ownership over a typical 15–20 year operational lifespan.

In summary, the SIMO YE4-280M-2 three-phase asynchronous motor represents a mature, field-proven solution for demanding 90 kW industrial drive applications. Its high-efficiency electromagnetic design, robust mechanical construction, and versatile v1 motor mounting configuration make it an ideal choice for vertical-shaft installations in water supply systems, HVAC plants, mining dewatering operations, chemical processing lines, and power station auxiliary equipment. Backed by SIMO's rigorous quality control - from raw material inspection through final type-testing - and supported by a global service network, the YE4-280M-2 delivers the reliability that heavy industry depends on, the efficiency that energy-conscious operators demand, and the standardized mounting interface that simplifies installation and maintenance. For any facility seeking a dependable 90 kW vertical-drive motor, the SIMO YE4-280M-2 is a specification worth serious consideration.

Main Technical Parameters

Production Details

Frame

• Compact and robust iron casting frame

• Universal IEC installation dimensions available

• Customizable outlook and dimensions

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Stator

• 99.9% pure copper winding for stator to ensure the output power and efficiency

• Excellent insulation system with 5 more processing flows

• All the windings are fitted in by handwork to ensure all slots are full and avoid any winding flaw.

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Rotor

• Aluminum casting rotor with high quality silicon steel rotor core to assure induction efficiency

• Well and precisely machined shafts with good capacity of strength and toughness

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Testing

• All motors must pass the piece testing before painting and packaging

• Type tests will be regularly performed for each series, more often for new developed series and variants.

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Package and delivery

• All motors will be packaged well before delivery

• Plastic cover inside, vacuum tin foil outer and then solid wood box

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Applications

This series of motor is commonly used to drive water pumps, fans, compressors, conveyors and other transmission machinery in energy conservation and environmental protection transformation projects, national water conservancy projects, etc.

Power 

Pump

Sugar

Water conservation

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