摘要:
The YBX3 series explosion-proof high efficiency three-phase asynchronous motor is designed for hazardous environments with explosive gases or dust. Complying with IE3 efficiency standards, it features a flameproof structure, stable performance, and reliable operation, making it widely used in petrochemical, chemical, and mining industries.
YBX3 Series Explosion-Proof High-Efficiency Three-Phase Асинхронный двигатель – Safe and Energy-Efficient Power Solution
In hazardous operating environments such as petroleum, chemical processing, and coal mining, the YBX3 Series explosion-proof high-efficiency трехфазный асинхронный двигатель stands out with its excellent explosion-proof safety and outstanding energy efficiency. It has become a preferred power solution for enterprises seeking safe operation, energy saving, and cost reduction.

Product Overview
Сайт YBX3 Series explosion-proof three-phase induction motor is a new-generation explosion-proof power product developed by Двигатель SIMO using advanced technology and optimized design. It features high explosion-proof safety, high efficiency, reliable operation, and long service life.
The motor strictly complies with GB 18613-2020 (Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Small and Medium Three-Phase Asynchronous Motors) as well as GB 3836.1-2010 и GB 3836.2-2010 explosion-proof standards.
The YBX3 series adopts a totally enclosed fan-cooled (TEFC, IC411) design. Frame sizes range from H80 to H355, with a power range of 0.75 kW to 315 kW, meeting the power requirements of a wide variety of industrial applications.
As an upgraded replacement for the YB3 explosion-proof motor, the YBX3 series shows significant improvements in energy efficiency, explosion-proof performance, and operational reliability, making it an ideal drive solution for hazardous environments.
Key Technical Features
1. Excellent Explosion-Proof Performance
The YBX3 series features an advanced flameproof (Ex d) enclosure design. In the event of an internal explosion, the flameproof housing effectively prevents flame and pressure transmission to the surrounding environment. Explosion-proof markings include:
- Ex d I – Electrical equipment for coal mines
- Ex d II A T1–T4 / Ex d II B T1–T4 – Suitable for IIA and IIB explosive gas atmospheres
- Ex d II C T1–T4 – Suitable for IIC explosive gas environments
The standard enclosure protection level is IP55, providing excellent resistance against dust and water ingress for harsh industrial conditions.
2. High Efficiency and Energy-Saving Performance
The efficiency of the YBX3 series meets GB 18613-2020 Grade 3, equivalent to IEC IE3 efficiency level under IEC 60034-30.
Through optimized electromagnetic design and the use of low-loss materials, the motor maintains high efficiency across a wide load range. Compared with conventional explosion-proof motors, total losses are significantly reduced, helping users achieve lower operating costs and improved energy utilization.
3. Robust and Durable Structural Design
The YBX3 series is manufactured with high-качество materials and reinforced processes:
- Stator windings: F-class insulation with VPI (Vacuum Pressure Impregnation) treatment, forming a solid integrated structure with excellent electrical, mechanical, moisture-resistant, and thermal stability
- Rotor structure: Die-cast aluminum rotor, dynamically balanced to ensure smooth operation and low vibration
- Bearing system: Low-vibration, low-noise bearings; frame size H160 and above equipped with on-line grease inlet and outlet devices, enabling maintenance without shutdown and extending service life
Технические характеристики
- Frame size: H80 – H355
- Rated power: 0.75 kW – 315 kW
- Rated voltage: 380 V (other voltages available on request)
- Rated frequency: 50 Hz
- Poles: 2P / 4P / 6P / 8P
- Класс защиты: IP55
- Insulation class: F (B-class temperature rise)
- Метод охлаждения: IC411 (TEFC)
- Duty type: S1 (continuous duty)
- Mounting types: IMB3, IMB5, IMB35, etc.
Application Areas
With reliable explosion-proof safety and high efficiency, the YBX3 series is widely used in:
1. Petrochemical Industry
- Oil drilling and extraction equipment
- Pumps and compressors in chemical plants
- Power drives for flammable and explosive environments
2. Coal Mining Industry
- Underground fixed equipment (non-mining faces), such as pumps and fans
- Coal preparation and processing machinery, suitable for dusty environments
3. Other Hazardous Locations
- Industrial sites with Class II explosive gas mixtures
- Special versions available for outdoor (W), humid tropical (TH), и dry tropical (TA) environments
Product Advantages and Value
1. Safety and Reliability
- Designed and manufactured in strict accordance with national explosion-proof standards
- Advanced flameproof structure ensures safe operation in explosive atmospheres
- High-quality materials and precision manufacturing guarantee long-term stable performance
- Optional protection devices such as stator temperature monitoring, bearing temperature monitoring, and anti-condensation heaters enhance operational safety
2. High Energy Efficiency Benefits
- High-efficiency design significantly reduces energy consumption
- Faster return on investment through lower operating costs
- High power factor improves grid quality and reduces компенсация реактивной мощности requirements
- Low total cost of ownership over the motor lifecycle
3. Easy Maintenance
- Main terminal box mounted on top of the frame, rotatable left or right to meet different cable entry requirements
- On-line bearing lubrication system for frame size H160 and above, allowing maintenance without stopping the motor
- Long service life with F-class insulation and large thermal margin
Installation and Operation Guidelines
Installation Environment
- Ambient temperature: -15°C to +35°C (coal mines), -15°C to +40°C (industrial plants)
- Altitude: ≤ 1000 m (special design available for high altitude)
- Relative humidity: ≤ 95% at 25°C
Installation and Commissioning
- Voltage fluctuation within ±5% (short-term ±10%)
- Frequency fluctuation within ±2% (short-term ±5%)
- Transmission methods: elastic coupling, spur gear, or belt drive
- Starting methods: direct-on-line (DOL), star-delta, reduced voltage, or variable frequency drive (VFD)
Service and Technical Support
Двигатель SIMO provides comprehensive service and technical support:
- Professional hotline: 400-066-5888
- Fast response system with on-site service within 48 hours when required
- Expert consultation for motor selection, installation, and application
Заключение
Сайт YBX3 Series explosion-proof high-efficiency three-phase asynchronous motor сочетает в себе reliable explosion-proof safety, high energy efficiency, robust construction, and stable performance, making it an ideal power solution for hazardous industrial environments.
Choosing the YBX3 series means choosing safety, efficiency, durability, and professional technical support, helping enterprises achieve safe production, energy savings, and sustainable development.





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