Power Range: Covering 0.75 kW to 375 kW across 22 frame sizes, the YE4 Series offers flexible selection for varying load demands. Available in 2, 4, 6, and 8-pole configurations, it meets diverse speed and load requirements for broad application compatibility.
Rated Voltage: Designed for direct connection to standard three-phase AC power supplies at 380V, 400V, or 415V, 50Hz, without additional configuration. Its strong voltage adaptability ensures stable operation under different grid conditions.
Efficiency Class: Meeting GB18613-2020 Grade 2 efficiency (equivalent to IE4 class), efficiency is improved by 2-4 percentage points over standard motors. The use of high-grade silicon steel and optimized windings reduces losses, achieving up to 95.8% efficiency at full load.
Power Factor: The optimized electromagnetic design ensures a high power factor of 0.88-0.90 at full load, minimizing reactive power losses, improving grid quality, and enhancing overall system efficiency.
Protection Level: With an IP55 rating, the motor is effectively protected against dust and water jets. Its Totally Enclosed Fan-Cooled (TEFC) construction provides superior heat dissipation for long-term, reliable operation in harsh environments.
Frame Construction: The high-strength cast iron frame ensures structural integrity, excellent heat dissipation, and the ability to withstand significant mechanical stress for long-term, stable operation. Its corrosion-resistant surface finish provides durability and an appealing appearance. With an IP55 protection rating, it is well-suited for demanding environments.
Cooling Method: Utilizing a Totally Enclosed Fan-Cooled (TEFC, IC411) design, an internal cooling fan efficiently dissipates heat through the frame’s cooling ribs. The optimized airflow path ensures effective cooling, low temperature rise, and reliable performance even under high ambient temperature conditions.
Insulation Class: The Class F insulation system offers a generous thermal margin and long service life, supporting reliable operation at elevated temperatures. The stator’s Vacuum Pressure Impregnation (VPI) process delivers stable insulation performance and high resistance to voltage surges for safe, long-term use.
Mounting Options: Available in various configurations including B3, B5, and B35 to accommodate horizontal, vertical, and other mounting needs. The frame feet are designed with standard mounting holes for quick and secure connection to equipment, reducing installation time.
Bearing System: Equipped with high-quality deep groove ball bearings or cylindrical roller bearings for high load capacity and smooth operation. The system features a long-life lubrication design and standard dust seals, extending maintenance intervals and reducing overall upkeep costs.
Starting Torque: With a high starting torque ratio of 200%-230% of rated torque, these motors offer excellent starting performance suitable for heavy-duty and frequent start-stop applications. They provide smooth starting with minimal inrush current, reducing stress on both the power supply and connected equipment.
Breakdown Torque: Featuring a breakdown torque ratio of 280%-320% of rated torque, the motors deliver strong overload capacity. They can withstand short-term overload conditions and maintain stable operation under complex working scenarios, ensuring high reliability.
Noise Level: Designed with a low-noise fan and optimized cooling circuit, the motors operate quietly in compliance with GB10069 standards. The typical sound pressure level at a 1-meter distance is ≤78 dB(A), making them suitable for noise-sensitive environments such as office buildings and hospitals.
Vibration Grade: The rotor is dynamically balanced according to ISO 10816-3 standards. This minimizes vibration transfer and ensures smooth operation, protecting connected machinery. With a typical vibration velocity of ≤2.3 mm/s, the motors support long-term stable operation of the entire drive system.
Duty Cycle: Rated for S1 continuous duty, the motors are engineered for reliable, long-term operation with stable temperature rise. The optimized thermal management design achieves a temperature rise approximately 15K lower than conventional motors, ensuring effective heat dissipation in various industrial applications.
Operating Temperature: Designed for reliable operation in ambient temperatures ranging from -15°C to +40°C. With ample thermal design margin and an optimized cooling system, it maintains stable performance under various climatic conditions, including high-temperature environments.
Altitude: Suitable for direct use at altitudes up to 1,000 meters. For installations above this level, derating is recommended. We also offer customized solutions for special conditions, including anti-corrosion, moisture-resistant, and explosion-proof variants.
Certifications: The motors carry both CCC (China Compulsory Certification) and CE marks, ensuring compliance with national and international electrical safety standards. Their energy efficiency is officially validated by the China Energy Label certification.
Warranty & Support: The complete motor is covered by an 18-month warranty, with a 12-month warranty for bearings. We provide comprehensive technical support and after-sales service. Free repair services are included during the warranty period for your peace of mind.
Standards Compliance: Conforms to Chinese National Standards including GB18613-2020, GB/T 755, and GB/T 10069, with performance meeting advanced international benchmarks. The series also complies with the IEC 60034 standard series, qualifying it for global export markets.
