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Precision response from 5Hz to 100Hz. Featuring independent forced ventilation for demanding closed-loop control systems.
Standard motors fail under variable speed conditions: they overheat at low frequencies due to reduced fan speed and suffer insulation breakdown at high frequencies.
The YVF2 Series is a true “Inverter Duty” motor. Equipped with a standard independent axial cooling fan (IC416) and a specialized Class H insulation system, it overcomes these limitations. Whether you require constant tension at 5Hz or high-speed cutting at 100Hz, the YVF2 delivers linear, smooth, and safe power output across the entire curve.
Decode the JWmotor model number to quickly identify the specifications for a precise replacement.
Technical Specifications
JWMotor Product Range:
Power Range (KW)
0.75 – 375
Poles
2/4, 4/6, 4/8, 2/4/6, 4/6/8
Frame Size (IEC)
80 – 355
Rated Voltage
220V – 690V
Operating Conditions
+5°F To +104°F
Ambient Temperature
≤1000m
Altitude
±5% variation
Voltage Tolerance
* Class H insulation is available for high-temperature environments.
* Power derating is required for high-altitude regions.
JWMotor offers you motor solutions with the following
significant advantages
IC416 Forced Ventilation
Equipped with a dedicated, independently powered axial fan at the rear. Whether the motor runs at a crawl (100 rpm) or top speed (3000 rpm), the cooling airflow remains constant at maximum capacity. This design completely eliminates the risk of overheating and burnout associated with standard self-cooled motors during low-frequency operation.
Wide Speed Range Control
Delivers precise output characteristics: Robust Constant Torque output below the base frequency (5-50Hz) for heavy loads like conveyors and hoisting; and stable Constant Power output above the base frequency (50-100Hz) for high-speed applications like cutting and winding.
Inverter Grade Insulation System
Utilizing reinforced insulation materials and Vacuum Pressure Impregnation (VPI), this system effectively withstands high-frequency pulse voltages (dV/dt) and harmonic stress generated by VFDs. It is fully compliant with NEMA MG1 Part 31 standards for inverter-duty motors.
Encoder Ready Design
The Non-Drive End (NDE) shaft extension and end shield feature a pre-configured encoder mounting interface. This facilitates the easy installation of rotary encoders, enabling high-precision closed-loop speed or position control when paired with vector control VFDs.
Industry Applications
FAQ
Why does the YVF2 motor use an independent cooling fan (IC416)?
Since YVF2 motors often operate at low speeds, a shaft-mounted fan wouldn’t provide enough airflow. We use an independent axial fan (IC416 cooling) to ensure the motor stays cool even when running at low frequencies, preventing insulation burnout.
What is the frequency adjustment range for the YVF2 series?
Our YVF2 motors typically support a range of 5Hz to 50Hz for constant torque and 50Hz to 100Hz for constant power operation. This wide range makes them perfectly compatible with most global VFD brands like ABB, Siemens, or Schneider.
Is the YVF2 motor suitable for continuous low-speed operation?
Absolutely. Thanks to its reinforced insulation and specialized cooling system, the YVF2 motor is designed for S1 continuous duty even at low speeds, making it the standard choice for conveyors, extruders, and automated production lines.
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