Industrial Standard Motor
Panbu ElectricWEBP Series Variable Frequency Drive Three-Phase Asynchronous Motor
The WEBP series variable frequency drive (VFD) three-phase asynchronous motors are energy-efficiency upgraded products independently developed by Wolong. Frame sizes range from H80 to H355, with rated power from 0.18 to 375kW and pole numbers covering 2P, 4P, 6P, 8P, and 10P. The motor efficiency at base frequency 50Hz meets GB18613-2020 Class 1, 2, and 3 energy standards, as well as IEC60034-30-1 IE5, IE4, IE3, and IE2 efficiency requirements. Sub-series designations are: WEBP5 for IE5, WEBP4 for IE4, WEBP3 for IE3, and WEBP2 for IE2. Motor technical specifications comply with IEC60034-1 and GB755 standards; mounting dimensions and power ratings adhere to IEC standards for seamless customer transition. Equipped with high-temperature-resistant grease, a high-strength mechanical structure, and independent fan cooling (IC416), these motors offer high starting torque, low locked-rotor current, and high dynamic constant. They feature wide speed ranges, superior force-energy metrics, low temperature rise, reliable operation, and easy maintenance. Constant torque control is available from 5 to 50Hz; constant power control applies to 2P motors from 50 to 70Hz and to 4P and higher motors from 50 to 100Hz. High-precision closed-loop operation is achievable when paired with high-accuracy sensors. Optional accessories include brakes, encoders, PTC/PTO/PT100/PT1000 thermal protection, and anti-condensation heating strips.
Technical Specifications
- Housing NumberH80~H355
- Rated Power0.18–37 5kW
- Jisu2P, 4P, 6P, 8P, 10P
- Rated Voltage380V (optional 220V/230V/400V/415V/440V/460V/480V/690V, or custom)
- Frequency Range2P: 5~70 Hz; 4P/6P/8P/10P: 5~100 Hz
- Energy Efficiency RatingWEBP5 corresponds to IE5, WEBP4 to IE4, WEBP3 to IE3, and WEBP2 to IE2.
- Ingress Protection RatingIP55 (Optional IP56/IP65/IP66)
- Insulation ClassF Class (Temperature rise rated at 80K; H Class and nano-insulation options available)
- Cooling MethodIC416 Independent Fan Forced Cooling
- Installation MethodB3 (Optional: B5, B35, V1, etc.)
- Work scheduleS1 (Customizable S2, S3)
- Wiring methodY-connection for 3kW and below, Delta connection for above 3kW
- Chassis MaterialCast iron, aluminum alloy junction box
- Bearing lubricationH180 and below: maintenance-free bearings; H200 and above: open-type bearings with oil fill and drain provisions.
- Execution ConditionsAmbient temperature: -20°C to +40°C, altitude ≤ 1000 m, monthly average maximum relative humidity ≤ 90%
Key Advantages
Wide-speed-range control: 5~50 Hz constant torque, constant power above base speed. 2P up to 70 Hz; 4P and higher up to 100 Hz.
Independent fan cooling: IC416 forced air cooling. Cooling capacity remains stable at low speeds with minimal temperature rise.
High Dynamic Performance: High stall torque, low stall current, high dynamic constant, and fast response.
Complete energy efficiency grading: The WEBP2/3/4/5 sub-series cover IE2~IE5, allowing flexible selection based on energy-saving requirements.
Rich protection configuration: Optional PTC, PTO, PT100, and PT1000 winding/bearing temperature sensors, plus anti-condensation heating bands.
Scalable design: optional brake and encoder for variable frequency braking and high-precision closed-loop control.
Standard interchangeability: Mounting dimensions and power ratings comply with IEC standards for easy replacement and retrofitting.
Environment adaptability options: Customizable designations for indoor/outdoor anti-corrosion, wet tropical, and high-altitude environments.
Use Cases
CNC machine tool spindle drive
Textile Machinery
Chemical Process Equipment
Metallurgical Rolling Equipment
Port Terminal Lifting and Conveying
Railway Equipment
Waste Processing Plant
Energy-saving speed control for fans and pumps
WEBP Series Variable Frequency Drive Three-Phase Induction Motor Selection Parameters (380V/50Hz Representative Models)
← Swipe left or right to view full parameters; first column is fixed
| Model | Housing Size | Power (kW) | JiShu | Speed (r/min) | Rated Current (A) | Efficiency (%) | Power Factor | Locked-rotor torque / Rated torque | Weight (kg) | Torque (N·m) | Energy Efficiency Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| WEBP5-90L-2 | 90 | 2.2 | 2 | 2895 | 4.31 | 90.2 | 0.86 | 2.3 | 32 | 7.32 | IE5 |
| WEBP5-132M-4 | 132 | 7.5 | 4 | 1460 | 15 | 94 | 0.81 | 2 | 108 | 49.6 | IE5 |
| WEBP5-180M-4 | 180 | 18.5 | 4 | 1475 | 34.7 | 95.3 | 0.85 | 2 | 215 | 120 | IE5 |
| WEBP5-250M-4 | 250 | 55 | 4 | 1480 | 101 | 96.5 | 0.86 | 2 | 565 | 355 | IE5 |
| WEBP5-315L1-4 | 315 | 160 | 4 | 1490 | 278 | 97.2 | 0.9 | 2 | 1340 | 1029 | IE5 |
| WEBP5-355L2-4 | 355 | 315 | 4 | 1495 | 546 | 97.4 | 0.9 | 2 | 2425 | 2012 | IE5 |
| WEBP4-112M-2 | 112 | 4 | 2 | 2915 | 7.67 | 90 | 0.88 | 2.2 | 53 | 13.1 | IE4 |
| WEBP4-200L-4 | 200 | 30 | 4 | 1475 | 56.5 | 94.9 | 0.85 | 2 | 295 | 194 | IE4 |
| WEBP4-280M-4 | 280 | 90 | 4 | 1485 | 162 | 96.1 | 0.88 | 2 | 736 | 579 | IE4 |
| WEBP4-355M2-4 | 355 | 250 | 4 | 1495 | 436 | 96.7 | 0.9 | 2 | 1875 | 1597 | IE4 |
| WEBP3-160M-4 | 160 | 11 | 4 | 1470 | 21.5 | 91.4 | 0.85 | 2.2 | 121 | 71.5 | IE3 |
| WEBP3-280S-4 | 280 | 75 | 4 | 1485 | 136 | 95 | 0.88 | 2 | 598 | 484 | IE3 |
| WEBP3-315M-8 | 315 | 75 | 8 | 740 | 153 | 93.1 | 0.8 | 1.8 | 1320 | 968 | IE3 |
| WEBP2-132S-4 | 132 | 5.5 | 4 | 1455 | 11.6 | 87.7 | 0.82 | 2 | 62 | 36.1 | IE2 |
| WEBP2-250M-4 | 250 | 55 | 4 | 1480 | 104 | 93.5 | 0.86 | 2.2 | 421 | 355 | IE2 |
| WEBP2-355L2-4 | 355 | 315 | 4 | 1490 | 559 | 95.1 | 0.9 | 2 | 1820 | 2019 | IE2 |
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WEBP Series Variable Frequency Drive Three-Phase Asynchronous MotorProduct Catalog (PDF) – Download for full technical specs, installation dimensions, and selection tables.
WEBP Series Variable Frequency Drive Three-Phase Asynchronous MotorProduct Catalog
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Industrial standard motors
WE3 Series Low-Voltage Three-Phase Induction Motors
The Wolong WE3 series high-efficiency low-voltage three-phase asynchronous motor, frame sizes 63 to 355, power ratings from 0.12 to 315 kW, with energy efficiency levels covering IE3/IE4. Compact design and stable operation, suitable for general industrial loads such as fans, pumps, and compressors.
WE4 Series Low-Voltage Three-Phase Induction Motors
The Wolong WE4 Series, the next generation of high-efficiency low-voltage three-phase asynchronous motors, features frame sizes 80 to 400, power ratings from 0.55 to 400 kW, and energy efficiency up to IE4/IE5. Built with high-grade silicon steel and an optimized cooling design, it is ideal for industrial applications requiring high energy efficiency and reliability.
WE5 Series Low-Voltage Three-Phase Induction Motors
The Wolong WE5 Series flagship high-efficiency low-voltage three-phase asynchronous motor, frame sizes 90 to 450, power range 1.1 to 560 kW, with IE5 efficiency rating. It features integrated smart temperature sensing and condition monitoring interfaces, designed for demanding industrial applications requiring high load rates and long-term operation.
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Cases are automatically linked by product series and application industry, allowing you to view retrofit details and performance data for similar operating conditions.
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