The Schneider Electric ATV340U40N4E Altivar Machine is a robust 4 kW variable speed drive, engineered for demanding industrial environments. Designed for three-phase 380–480 V supply, it delivers stable, efficient motor control — ideal for conveyor systems, pumps, packaging machines, material handling, and general industrial automation.
Compact yet powerful, the ATV340U40N4E combines advanced motor control, reliable heavy-duty construction, and flexible communication protocols (Ethernet/Modbus), making it a versatile choice for factories, workshops, and automated production lines. With integrated EMC filtering and multiple safety protections, it ensures compliance and longevity even under challenging conditions.
Key Features
- 4 kW output power (heavy-duty rating) — suitable for a wide range of industrial motors and loads.
- Three-phase 380–480 V AC supply — standard for industrial power systems.
- Integrated EMC filter (Class C3) — reduces electromagnetic interference and simplifies compliance.
- Embedded multi-protocol communication — EtherNet/IP, Modbus TCP/RTU for seamless integration with PLCs, HMIs, or automation networks.
- Flexible motor type support — works with asynchronous and synchronous motors, open- or closed-loop control.
- Adjustable switching frequency (2–16 kHz) — enables optimization between performance and acoustic/EMI requirements.
- Comprehensive protection & safety — overload, overvoltage/undervoltage, phase-loss, over-temperature, short-circuit, and built-in Safe Torque Off (STO) functions.
- Heavy-duty, industrial-grade build — IP20 cabinet-mount design, suitable for harsh industrial conditions (vibration, dust, temperature up to 60 °C).
Technical Specifications
| Specification | Details |
| Model / Series | ATV340U40N4E — Altivar Machine 340 |
| Output Power (Heavy Duty) | 4 kW |
| Continuous Output Rating (Normal Duty) | 5.5 kW |
| Supply Voltage | 380–480 V AC, 3 phase |
| Supply Frequency | 50–60 Hz |
| Output Current | ~9.3 A (nominal) |
| Max Input Current | ~13.4 A (heavy duty) |
| Switching Frequency | Adjustable 2…16 kHz |
| EMC Filter | Class C3 (integrated) |
| Protection / Enclosure | IP20, cabinet mount |
| Cooling Method | Forced convection |
| Communication Protocols | EtherNet/IP, Modbus TCP / RTU |
| Motor Types Supported | Asynchronous (induction), synchronous (permanent magnet / reluctance) |
| Control Modes | V/f control, sensorless vector, closed-loop with encoder |
| Safety Functions | Overload, overvoltage/undervoltage, phase loss, output overcurrent, overtemperature, Safe Torque Off (STO) |
| Compliance / Standards | IEC/EN 61800-5-1, IEC/EN 61800-3, CE, UL, CSA, TÜV |
Typical Applications
- Conveyor systems and material handling
- Industrial pumps and fans
- Packaging, printing, and food processing machines
- Textile, plastics, and rubber machinery
- Automation lines requiring variable speed control
- Any 3-phase motor-driven industrial equipment needing precise control and protection




