



The Schneider ATV31HD15N4A is a robust Altivar 31 series variable speed drive designed for precise control of three-phase asynchronous motors in industrial automation systems.
It is engineered for 15 kW motor applications (20 HP class) and operates on a 380–500V three-phase power supply, making it suitable for a wide range of machinery such as pumps, conveyors, compressors, and general industrial equipment.
Built with a focus on simple machine control, stable torque output, and reliable operation, this VFD is widely used in legacy and mid-level automation systems where performance stability and cost efficiency are critical.
Technical Specifications — Industrial Grade Drive Performance
Core Electrical Data
| Parameter | Specification |
|---|---|
| Product Model | ATV31HD15N4A |
| Series | Altivar 31 |
| Brand | Schneider |
| Device Type | Variable Speed Drive (VFD) |
| Rated Motor Power | 15 kW (20 HP) |
| Supply Voltage | 380–500 V, 3-phase |
| Output Current | 33 A |
| EMC Filter | Integrated |
| Control Mode | Sensorless flux vector control |
Mechanical Dimensions & Weight
| Item | Specification |
|---|---|
| Dimensions (W × H × D) | 330 × 245 × 190 mm |
| Weight | Approx. 9–11 kg |
Performance Characteristics
- Output frequency range: 0.0005 – 0.5 kHz
- Switching frequency: 2 – 16 kHz adjustable
- Overload capability: up to 150% torque
- Built-in protection for overvoltage, overload, and motor faults
- Stable torque control for variable load applications
Recommended Related Models — Altivar Series Alternatives
- Schneider ATV312HD15N4 — newer compact VFD alternative
- Schneider ATV320D15N4 — modern high-efficiency drive
- Schneider ATV71HD15N4 — heavy-duty industrial version
- Schneider ATV310HU15N4 — cost-effective light-duty drive
- Schneider ATV12H075M2 — small machine applications
These models provide upgrade paths from legacy Altivar 31 systems to newer EcoStruxure-ready drive platforms.
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