Product Introduction
The Schneider ATV71HD37N4 Variable Speed Drive is part of the Altivar 71 series, developed for advanced industrial motor control applications. It combines robust power handling, flexible control algorithms, and integrated protection features in a compact industrial drive platform.
Unlike basic drives focused only on speed adjustment, the ATV71HD37N4 is built for complex machines where torque precision, transient load handling, and operational continuity matter. Its control architecture helps improve production consistency while minimizing unnecessary energy use.
For maintenance teams, it also offers long-term serviceability through onboard diagnostics, clear status feedback, and reliable operating stability under demanding plant conditions.
Technical Specifications
| Parameter | Specification |
|---|
| Product Type | Variable Speed Drive |
| Model | ATV71HD37N4 |
| Series | Altivar 71 |
| Motor Power | 37 kW / 50 hp |
| Input Voltage | 380–480 V AC |
| Phase | 3 Phase |
| Line Current | 69 A at 480 V |
| Nominal Output Current | 65 A at 460 V |
| Maximum Transient Current | 130 A for 2 seconds |
| Output Frequency | 0.1–599 Hz |
| Switching Frequency | 1–16 kHz Adjustable |
| EMC Filter | Integrated |
| Protection Rating | IP20 |
| Mounting Type | Wall / Panel Mount |
| Dimensions | 550 × 266 × 240 mm |
| Weight | 37 kg (81.57 lb) |
Ideal Industrial Applications
The Schneider ATV71HD37N4 Variable Speed Drive is designed for demanding motor control environments where precision speed regulation, torque stability, and system reliability are critical. It is commonly used in:
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Heavy-duty conveyor and material handling systems
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Industrial mixers and agitators
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Pumps and booster systems
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HVAC air handling units
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High-inertia fans and blowers
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Packaging and process machinery
Its advanced control capability makes it especially suitable for complex machines that require smooth acceleration, stable low-speed operation, and reliable overload performance.
Practical Advantages in Industrial Operation
The ATV71HD37N4 is engineered to improve machine efficiency while reducing wear on mechanical systems. For engineers and plant operators, it offers several practical benefits.
Main advantages
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Accurate motor speed control for variable process loads
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Integrated EMC filter to reduce electrical interference
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Strong overload capacity for demanding startup conditions
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Sensorless flux vector control for improved torque response
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Wide frequency adjustment range for process flexibility
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Built-in graphic terminal for easier setup and diagnostics
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Support for asynchronous and synchronous motors
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Smooth acceleration and deceleration to reduce equipment stress
In field use, this drive is valued for balancing motor protection, process stability, and energy efficiency in continuous-duty applications.
Technical FAQs
1. What motor power is this drive rated for?
It is rated for 37 kW (50 hp) motors on 380–480 V three-phase systems.
2. Does it support vector control?
Yes. It supports both sensorless flux vector control and closed-loop vector control.
3. Can it be used for high-inertia loads?
Yes. It is specifically suitable for complex and high-inertia industrial machinery.
4. What is the maximum output frequency?
The drive supports an output frequency range from 0.1 Hz up to 599 Hz.
5. Is an EMC filter included?
Yes. The unit includes an integrated EMC filter.
6. Can it work with synchronous motors?
Yes. It supports both asynchronous and synchronous motor applications.
7. Does it support long motor cable runs?
Yes. It supports up to 100 m shielded cable and 200 m unshielded cable.
8. Is it suitable for process automation systems?
Yes. It is widely used in process industries requiring precise motor speed control.
9. How does it improve equipment lifespan?
It reduces mechanical shock through controlled starts, stops, and ramp management.
10. Is on-site configuration convenient?
Yes. Its built-in interface and diagnostics simplify commissioning and troubleshooting.
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