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- Schneider
- ATV312H055N4
- Variable Speed Drive
- France
- 143 x 107 x 152 mm
- 1.8 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Schneider ATV312H055N4 is a compact variable speed drive (VSD) from the Altivar 312 series, designed for efficient control of three-phase asynchronous motors in industrial and OEM applications. It provides precise motor speed regulation, smooth starting and stopping, and improved energy efficiency for machines such as pumps, fans, conveyors, packaging equipment, and light industrial systems.
This drive is optimized for 0.55 kW (0.75 HP) motor control and is widely used in simple machine architectures where reliability, compact size, and ease of integration are required.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Model | ATV312H055N4 |
| Product Type | Variable Speed Drive (VSD) |
| Series | Altivar 312 |
| Dimensions | 143 × 107 × 152 mm |
| Weight | 1.8 kg |
| Input Voltage | 380–500 V AC, 3-Phase |
| Rated Motor Power | 0.55 kW (0.75 HP) |
| Rated Output Current | 1.9 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 |
| Protection Rating | IP20 |
| Cooling Method | Natural Convection |
| Mounting Type | Panel Mount |
| Operating Temperature | -10°C to +50°C |
| Application | Light industrial motor control |
Function and Working Principle
The ATV312H055N4 regulates motor speed by adjusting the frequency and voltage supplied to a three-phase motor.
Core Functions
- Smooth motor acceleration and deceleration
- Variable speed control for process optimization
- Energy-efficient operation under low load conditions
- Motor protection (overload, overcurrent, thermal protection)
- Basic automation integration via fieldbus communication
Working Principle
The drive converts incoming AC power into DC through a rectifier stage. This DC voltage is then converted back into a controlled AC output using an inverter. By varying output frequency, the drive precisely controls motor speed while maintaining torque stability and reducing mechanical stress on the system.
Role in Industrial Automation Systems
The ATV312H055N4 is commonly used in simple automation systems where reliable motor control is required. It helps to:
- Match motor speed to process demand
- Reduce energy consumption in variable-load systems
- Improve mechanical lifespan of equipment
- Enhance process stability and operational efficiency
- Enable integration with PLC-based control systems
Industrial Applications
This drive is widely used in:
- Small conveyor systems
- Ventilation fans
- Small pumps and circulation systems
- Packaging machines
- Textile auxiliary equipment
- Light OEM machinery
- General-purpose automation systems
Installation and System Integration
Proper installation ensures stable and safe operation:
- Install vertically inside a ventilated control cabinet
- Maintain sufficient clearance for heat dissipation
- Connect to a three-phase 380–500 V supply
- Use shielded motor cables when required
- Configure motor parameters before commissioning
- Ensure proper grounding and EMC compliance
Compatible System Components
The ATV312H055N4 typically integrates with:
- Schneider Electric PLC systems (Modicon series)
- Industrial HMI operator panels
- Three-phase induction motors
- Motor protection circuit breakers
- Contactors and relays
- Modbus RTU / CANopen networks
- Industrial sensors and control devices
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| ATV312H037N4 | VSD | Lower power option | 0.37 kW systems |
| ATV312H075N4 | VSD | Higher power option | 0.75 kW loads |
| ATV310HU11N4A | VSD | Compact Altivar 310 model | OEM machines |
| ATV320U06N4C | VSD | Modern Altivar 320 series | Smart automation |
| ATV312HU11N4 | VSD | Mid-range control | Light industrial systems |
Key Advantages
- Reliable 0.55 kW motor control
- Compact and industrial-grade design
- Sensorless vector control capability
- Integrated Modbus and CANopen communication
- Built-in motor protection functions
- Energy-efficient operation
- Easy installation and commissioning
- Suitable for OEM and light industrial use
Technical FAQs
What is the main function of the ATV312H055N4?
It controls motor speed and torque by adjusting frequency and voltage for efficient operation.
What motor power does it support?
It supports 0.55 kW (0.75 HP) motors.
Does it support industrial communication?
Yes, it supports Modbus RTU and CANopen.
Can it be used in HVAC systems?
Yes, it is commonly used in fans and small pump applications.
Does it provide motor protection?
Yes, it includes overload, overcurrent, undervoltage, and thermal protection.
Conclusion
The Schneider ATV312H055N4 Variable Speed Drive is a compact and reliable solution for light-duty motor control applications. With its 0.55 kW capacity, flexible communication options, and integrated protection functions, it delivers stable and energy-efficient performance for OEM machinery and general industrial automation systems.