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- ATV312HU55N4
- Variable Speed Drive
- France
- 232 × 172 × 180 mm
- 6.5 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Schneider ATV312HU55N4 is a medium-duty variable speed drive (VSD) from the Altivar 312 series, designed to control three-phase asynchronous motors with high precision. It delivers smooth motor operation, energy-efficient performance, and built-in protection for industrial processes.
With a rated motor power of 5.5 kW (7.5 HP), this drive is ideal for industrial applications requiring reliable performance in medium-load systems such as pumps, fans, conveyors, compressors, and light manufacturing machinery.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Model | ATV312HU55N4 |
| Product Type | Variable Speed Drive (VSD) |
| Series | Altivar 312 |
| Dimensions | 232 × 172 × 180 mm |
| Weight | 6.5 kg |
| Input Voltage | 380–500 V AC, 3-Phase |
| Rated Motor Power | 5.5 kW (7.5 HP) |
| Rated Output Current | ~14 A |
| Output Voltage | 0–500 V AC |
| Output Frequency | 0.1–500 Hz |
| Motor Type | Three-Phase Asynchronous Motor |
| Control Method | V/F Control, Sensorless Vector Control |
| Overload Capacity | 150% for 60 seconds |
| Communication Protocol | Modbus RTU, CANopen |
| Optional Communication | Profibus, DeviceNet, Modbus TCP |
| Protection Rating | IP20 |
| Cooling Method | Forced air (internal fan) |
| Mounting Type | Panel / Wall Mount |
| Operating Temperature | -10°C to +50°C |
| Application | Medium industrial motor control |
Function and Working Principle
The ATV312HU55N4 regulates motor speed and torque by controlling the frequency and voltage delivered to a three-phase induction motor. This ensures efficient and reliable operation for medium-load industrial processes.
Core Functions
- Smooth acceleration and deceleration of motors
- Precise variable speed control
- Energy-efficient operation under varying loads
- Built-in motor protection: overload, overcurrent, thermal, phase loss
- Communication with automation systems via Modbus RTU or CANopen
Working Principle
The drive converts AC input power to DC via a rectifier stage, then generates variable-frequency AC using an inverter. By controlling voltage and frequency, the drive ensures precise speed, stable torque, and reduced mechanical stress on motors and machinery.
Role in Industrial Automation Systems
The ATV312HU55N4 plays a key role in:
- Matching motor speed to process requirements
- Reducing energy consumption in variable-load systems
- Extending motor and equipment lifespan
- Enhancing process stability and efficiency
- Seamless integration with PLC-based automation networks
It is widely used in medium industrial automation where reliability and efficiency are critical.
Industrial Applications
Common use cases include:
- Medium-duty conveyor systems
- Industrial pumps and compressors
- HVAC fans and ventilation systems
- Packaging machinery
- Material handling equipment
- Food and beverage processing lines
- Light manufacturing machinery
Installation and System Integration
For optimal performance:
- Install vertically in a ventilated control cabinet
- Maintain clearance for cooling and airflow
- Connect to a three-phase 380–500 V AC supply
- Use shielded motor cables for EMC compliance
- Configure motor parameters before commissioning
- Ensure proper grounding and protective devices
Compatible System Components
The ATV312HU55N4 integrates with:
- Schneider Electric Modicon PLCs
- Industrial HMI operator panels
- Three-phase induction motors
- Motor protection circuit breakers
- Contactors and relays
- Modbus RTU / CANopen communication networks
- Optional Profibus or DeviceNet modules
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| ATV312HU40N4 | VSD | 4 kW mid-range drive | Medium industrial loads |
| ATV312HU75N4 | VSD | 7.5 kW higher power drive | Higher-load systems |
| ATV320U55N4C | Altivar 320 | Advanced communication | Smart automation systems |
| ATV310HU55N4A | VSD | Compact Altivar 310 | OEM or smaller installations |
| ATV312HD15N4 | VSD | Heavy-duty 15 kW drive | Larger industrial processes |
Key Advantages
- Reliable 5.5 kW motor control
- Compact design for medium industrial loads
- Sensorless vector control for stable torque and speed
- Integrated Modbus RTU and CANopen communication
- Robust overload and motor protection features
- Energy-efficient operation
- Easy installation and commissioning
- Suitable for medium-load industrial applications
Technical FAQs
What is the main function of the ATV312HU55N4?
It provides precise motor speed and torque control for medium industrial loads.
What motor power does it support?
It supports 5.5 kW (7.5 HP) three-phase motors.
Can it communicate with PLC systems?
Yes, it supports Modbus RTU and CANopen, with optional fieldbus modules.
Is it suitable for HVAC applications?
Yes, it is used for medium-size fans, pumps, and ventilation systems.
Does it include motor protection?
Yes, it includes overload, overcurrent, thermal, and phase-loss protection.
Conclusion
The Schneider ATV312HU55N4 Variable Speed Drive is a robust, energy-efficient solution for medium-load industrial motor control. With 5.5 kW capacity, advanced motor control, and integrated protection features, it ensures stable, reliable, and long-lasting performance across a wide range of industrial automation applications.