3 hp inverter duty motor
Frequency conversion range:30hz~50hz，5hz~70hz，5hz~100hz
Power range：0.75-1000kW
Protection level：IP55
Application:are suitable for driving various mechanical equipment that require continuous and frequent forward and reverse rotation, such as steel rolling, lifting, transportation, machine tools, printing and dyeing, papermaking, chemicals, textiles, pharmaceuticals, etc., and can be used with various domestic and foreign variable frequency power supplies.
Advantage:high efficiency, wide speed range, high precision, stable operation, and easy operation and maintenance.
Certificate:installation dimensions comply with International Electrotechnical Commission (IEC) standards.
Others: SKF, NSK, FAG bearings can be replaced according to customer requirements.
- Product Description
3 HP Inverter Duty Motor | YVFE3 Series Variable Frequency Drive Motor for Industrial Applications
Sourcing a reliable 3 hp inverter duty motor for VFD-driven applications means looking beyond catalog ratings. The YVFE3 series from Shaanxi Qihe Xicheng Electromechanical Equipment Co., Ltd. covers 0.75–1000 kW with a frequency conversion range of 5 Hz–100 Hz. Built for continuous and frequent forward/reverse operation, it meets IP55 protection standards and conforms to IEC installation dimensions — making it a practical choice for steel rolling, chemical processing, textile machinery, and similar industrial environments.
Common Problems With Standard Motors in VFD Applications
Standard motors were not designed for the demands of variable frequency drive control. They overheat at low speeds due to reduced fan cooling, struggle under heavy cyclic loads, and experience accelerated insulation degradation from PWM voltage stress. These failures translate directly into unplanned downtime and replacement costs.
The YVFE3 series is designed specifically for VFD-paired operation. Its IP55 enclosure protects windings from dust and moisture in harsh environments. The wide frequency range — available in 30–50 Hz, 5–70 Hz, or 5–100 Hz configurations — provides precise speed control across the actual operating range your application requires, not only at rated speed.
Bearings are available in SKF, NSK, or FAG options, specified at the time of order based on your load conditions and operating environment.
Technical Specifications
Feature | Specification |
Series | YVFE3 |
Power Range | 0.75–1000 kW |
Frequency Conversion Range | 30–50 Hz / 5–70 Hz / 5–100 Hz |
Protection Level | IP55 |
Dimensional Standard | IEC International Standard |
Bearing Options | SKF / NSK / FAG (customer-specified) |
Compatible Power Supply | Domestic and foreign VFDs |
The IP55 rating means the motor withstands water jets and heavy dust accumulation without compromising internal insulation or winding integrity — relevant in environments like chemical processing or outdoor conveyor installations.
IEC-compliant installation dimensions allow direct integration into existing machine footprints without custom adapter plates.
Manufacturing Process
Each YVFE3 motor moves through a structured manufacturing workflow tracked through a SAP factory management system, providing full traceability from raw materials to finished product.
Winding production follows defined IQ controls to maintain consistent insulation resistance and thermal class ratings. Rotor balancing is performed to reduce vibration, which extends bearing and coupling service life. Final assembly uses precision alignment tools to keep shaft runout within tolerance.
Before shipment, each motor undergoes electrical testing that includes insulation resistance measurement, no-load current verification, and vibration assessment.
Industry Applications
The YVFE3 3 hp inverter duty motor is suited for industrial sectors that require variable speed control and reliable forward/reverse cycling.
· Steel rolling — handles high cyclic torque demands during continuous rolling passes
· Lifting and transportation — provides controlled acceleration and deceleration for hoists and conveyors
· Printing and dyeing — maintains consistent speed for web tension management
· Papermaking — supports steady roll speed for uniform paper thickness
· Chemicals and pharmaceuticals — IP55 enclosure handles environments with corrosive vapors
· Textiles — smooth speed transitions protect delicate fabric processing equipment
· Machine tools — precise speed control supports surface finish and tool life requirements
Applications involving frequent direction changes or variable load profiles are where this motor's design characteristics are most relevant.
Customization Options
The YVFE3 series supports customization at several levels to match specific application requirements.
· Frequency range: Choose from 30–50 Hz, 5–70 Hz, or 5–100 Hz based on your drive system output and required speed range
· Bearing brand: SKF, NSK, or FAG specified at order based on load and environment
· Dimensional adjustments: Shaft length, mounting configuration, and frame size can be modified to match existing equipment
· Shipping arrangements: Sea freight, air freight, land transport, or combined routing can be arranged based on your project timeline
Shaanxi Qihe Xicheng works with more than 30 domestic and international motor manufacturers — including partnerships with brands such as ABB, Siemens, Wolong, and XEMC — giving access to a broader range of motor specifications beyond a single product line.
Certifications
The YVFE3 holds the following certifications:
· CCC — China Compulsory Certification
· CE — European Conformity
· ISO9001 — International Quality Management System
· CRCC — Ministry of Railways China
· CQC — Quality Management System
· China Energy Saving Production Certification
· ZDHY Environmental Management System Certification
This certification coverage addresses requirements across most major international markets.
About Shaanxi Qihe Xicheng Electromechanical Equipment Co., Ltd.
Shaanxi Qihe Xicheng Electromechanical Equipment Co., Ltd. has been supplying power equipment solutions for over 20 years. The team works across more than 30 domestic and international motor manufacturer partnerships, which means the focus is on matching the right motor specification to actual load requirements rather than pushing a single catalog option.
Technical consultation is available before purchase to help define the correct frequency range, bearing type, and configuration for your application. Support is available seven days a week.
FAQ
Q: What separates an inverter duty motor from a standard motor?
A: An inverter duty motor is built for variable frequency drive operation. It handles wider speed ranges, manages insulation stress from PWM voltage waveforms, and maintains adequate thermal performance at low speeds — areas where standard motors are not designed to perform reliably.
Q: Which frequency range should I select?
A: The 30–50 Hz range suits applications with limited speed variation. The 5–70 Hz and 5–100 Hz ranges are appropriate for wider speed control requirements. Your VFD's output frequency and your application's minimum required speed are the key factors.
Q: Is the YVFE3 compatible with third-party VFDs?
A: Yes. The motor is compatible with both domestic and foreign variable frequency power supplies.
Q: Can bearing brand be specified?
A: Yes. SKF, NSK, and FAG are available options, specified at the time of order based on load conditions and operating environment.
Q: Does this motor use standard mounting dimensions?
A: Yes. Installation dimensions conform to IEC standards, allowing direct replacement or integration into IEC-dimensioned equipment.
Q: What certifications does the YVFE3 carry?
A: CCC, CE, ISO9001, CRCC, CQC, and China Energy Saving certifications are held, covering major international markets and compliance requirements.
Contact Us
Have a question about the 3 hp inverter duty motor or need a quote? Email us at XCMOTORs@163.com. We respond seven days a week.
