YE5-250M-4 Three-phase Asynchronous Motor Cooling IC 411 55kw 50Hz
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YE5-250M-4 Three-phase Asynchronous Motor Cooling IC 411 55kw 50Hz

The YE5-250M-4 three-phase asynchronous motor is our premium IE5 ultra-high efficiency model from Xi’an SIMO. Rated at 55kW, 380V/50Hz, it runs at 1485rpm with 96.5% efficiency and low energy loss. Equipped with SKF C3 bearings, IP55 protection and Class F 155℃ insulation, it adopts cooling ic411 and B3 foot mounting. Designed for S1 continuous operation, it perfectly matches pumps, fans and compressors, ideal for energy-saving projects in Southeast Asia.
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Description

Technical Parameters

Brief Introduction

 

Outfitted with proprietary cooling IC 411 self-ventilated thermal regulation architecture, the YE5-250M-4 serves as Xi'an SIMO Motor Co., Ltd.'s flagship tier-one energy-saving induction dynamo, accredited with CE conformity for cross-border industrial deployment. Boasting a nominal power output of 55kW, this unit is engineered to align with universal 380V 50Hz mains supply, optimized for S1 uninterrupted continuous-duty cycles. It caters to a broad spectrum of heavy-duty industrial apparatus including centrifugal pumps, axial ventilation blowers, positive-displacement compressors and bulk material conveyors, prevalent within metallurgical excavation, petrochemical synthesis and wastewater remediation sectors. Every electrical metric undergoes stringent calibration to sustain unwavering full-load performance: its nominal amperage registers at 101A alongside a power factor of 0.86, maintaining a steady rotational velocity of 1485 revolutions per minute, while its peak operational efficiency peaks at 96.5%, attaining the apex Grade 1 energy conservation benchmark and substantially curbing corporate cumulative power overhead amid worldwide decarbonization mandates.

 

The stator winding is impregnated with Class 155 high-temperature dielectric composite material, conferring exceptional thermal endurance and mitigating insulation degradation stemming from prolonged high-load cycling. Its integral housing achieves IP55 ingress protection classification, erecting an impenetrable barrier against airborne particulate matter and splashing liquid pollutants to safeguard internal electromagnetic assemblies. From a mechanical perspective, both drive-end and non-drive-end journals are furnished with SKF 6314/C3 oversize clearance antifriction bearings, characterized by marginal frictional attenuation and superior radial load bearing capacity to dampen vibrational resonance and operational acoustic emissions. Configured to IM B3 horizontal foot-mounted mounting modality with delta terminal interconnection, it exhibits universal interoperability with mainstream industrial mechanical frameworks; its 469kg cast iron monolithic chassis delivers formidable structural rigidity to counteract mechanical distortion under perpetual heavy torque loads. Underpinning its impeccable thermal equilibrium capability is cooling IC 411, the canonical forced-air cooling configuration engineered to deliver homogeneous heat evacuation across all operational spectrums. An externally affixed impeller mounted onto the rotor spindle propels laminar airflow across densely arrayed heat dissipation fins cast into the motor casing, expediting the expulsion of calorific buildup emanating from windings and bearing assemblies. Contrasted against passive radiative cooling alternatives, this architecture precludes the formation of localized hotspots within the stator cavity, obviating mandatory power derating during round-the-clock full-load operation, while the dust-tight IP55 enclosure preserves unimpeded aerodynamic circulation within the Cooling IC 411 ventilation ductwork amid gritty, humid workshop ambiences.

 

Fabrication adheres rigorously to the enterprise standard Q/XD.510.292, with a unique fabrication serial number assigned to each individual unit to facilitate comprehensive lifecycle traceability and post-sale quality auditing, with this specific specimen manufactured in July 2026. This SIMO YE5 series dynamo synergizes IE5 transcendent energy efficiency, premium thermal insulation, world-renowned bearing hardware and robust mechanical geometry into a unified high-performance drive solution. Its definitive competitive edge over conventional industrial motors lies in its refined, field-proven cooling IC 411 thermal management paradigm, which harmonizes superior heat exchange efficacy, minimal maintenance overhead and long-duration operational stability. For international manufacturing conglomerates endeavoring to diminish energy expenditure, prolong equipment service longevity and curtail unplanned maintenance downtime, this 55kW YE5-250M-4 induction motor-endowed with three core competitive merits: supreme energy efficiency, elevated ingress shielding and Cooling IC 411 autonomous forced ventilation-represents a prudent, sustainable long-term prime mover solution for all perpetual-operation industrial applications.

Main Technical Parameters

Frame: YE5-250M-4
Power Scope: 55kw
Voltage: 380V
Frequency: 50Hz
Number of Poles: 4P 
Speed: 1485
Cooling Method IC411
Protection Grade  IP55
Insulation Class F(155℃)
Duty: S1
Mounting Type B3
Standard: IEC
Efficiency Grade: IE5

Production Details

 

Frame

  • Compact and robust iron casting frame
  • Universal IEC installation dimensions available
  • Customizable outlook and dimensions

55kw motor cooling ic411


3 phase motor cooling ic411

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.

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
High Efficiency cooling ic411 motor

cooling ic411 motor 50Hz

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.

Package and delivery

  • All motors will be packaged well before delivery
  • Plastic cover inside, vacuum tin foil outer and then solid wood box
industrial cooling ic411 motor

 

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.

 

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