Schneider ATV320U40N4C Altivar 320 Variable Frequency Drive, 4.0kW 3-Phase 380-500V Compact Industrial VFD

Schneider ATV320U40N4C Altivar 320 4.0kW 3-Phase 380-500V VFD For Medium-Heavy Duty Complex Industrial Machine Speed Regulation

Schneider ATV320U40N4C compact book-type variable frequency drive is a high-performance 4.0kW heavy-duty model in the Altivar 320 series. Featuring built-in Class C2 EMC filter, integrated brake chopper and multi-certified functional safety functions including STO, SS1 and SLS, this VFD delivers stable high-torque output, ultra-wide precision speed regulation and excellent environmental adaptability. It is specially designed for complex automated machinery, heavy-duty process pumps, industrial fans and medium-heavy duty factory automation equipment.

Schneider ATV320U40N4C Altivar 320 4.0kW Three-Phase Compact VFD For Complex Medium-Heavy Duty Factory Automation

1. Industrial Structural Design & Superior Environmental Adaptability of Schneider ATV320U40N4C

Space-Saving Book-Style Mounting Structure

Schneider ATV320U40N4C adopts a slim vertical book-shaped casing supporting standard wall-mounted installation, perfectly fitting compact control cabinet layouts and OEM machine integration. With compact dimensions of 140mm width, 184mm height and 158mm depth and a net weight of 2.2kg, the unit supports neat side-by-side device arrangement to maximize internal cabinet space utilization. Featuring IP20 enclosure protection and UL Type 1 conformity, the unit effectively blocks dust and solid particle intrusion, maintaining stable and reliable internal circuit operation in standard industrial workshop environments.

Wide-Range Temperature & Mechanical Resistance Performance

Schneider ATV320U40N4C ensures full-power continuous operation from -10°C to +50°C without power derating, and supports conditional operational output up to 60°C with proper power adjustment. It withstands 5% to 95% non-condensing humidity and complies with industrial 3C3 and 3S2 environmental classification standards. The reinforced mechanical structure resists 1.5mm low-frequency vibration deflection and 10m/s² high-frequency vibration acceleration, and endures 150m/s² instantaneous mechanical shock, enabling long-term unattended continuous operation in complex factory working conditions.

2. 4.0kW Heavy-Duty Electrical Performance & Precision Motor Control of Schneider ATV320U40N4C

Standard Heavy-Duty Electrical Parameters

Schneider ATV320U40N4C features 4.0kW heavy-duty rated motor power with 9.5A nominal output current and 9.2kVA apparent power at 500V, tailored for three-phase asynchronous and synchronous industrial motors. Compatible with 380V to 500V global industrial power grids, the drive tolerates -15% to +10% grid voltage fluctuation and supports 50/60Hz standard power frequency operation. It delivers 13.7A maximum input current at 380V and 10.6A at 500V, with stable voltage and current output eliminating motor speed deviation under variable medium-heavy load conditions and ensuring consistent mechanical operational efficiency.

High-Torque Regulation & Intelligent Energy-Saving Operation

Schneider ATV320U40N4C delivers 170% to 200% transient overtorque capacity to handle instantaneous heavy startup loads and sudden load fluctuations for medium-heavy industrial equipment. It supports ultra-wide 0.1Hz to 599Hz frequency adjustment, covering full-range working scenarios from low-speed constant-torque transmission to high-speed precision operation. The unit features 4kHz nominal switching frequency with an adjustable 2kHz to 16kHz range, effectively suppressing motor electromagnetic noise and mechanical resonance. Integrated brake chopper enables reliable dynamic braking performance, while dedicated fan and pump energy-saving algorithms significantly reduce power consumption during continuous cyclic operation, lowering long-term operational costs.

3. Multi-Certified Safety System & Multi-Protocol Networking of Schneider ATV320U40N4C

Full-Range Functional Safety & Industrial-Grade Protection

Schneider ATV320U40N4C integrates factory-certified multi-safety functions including Safe Torque Off (STO), Safe Stop 1 (SS1) and Safely Limited Speed (SLS), fully compliant with international machinery safety standards. Built-in safety modules eliminate external safety relay reliance and simplify system wiring layout. Comprehensive multi-layer protection mechanisms cover input phase loss, motor short circuit, ground fault, overload, overvoltage, undervoltage and internal overheating. Real-time fault monitoring and automatic power cutoff mechanisms provide full-coverage hardware protection for both the drive and connected motors, ensuring safe and stable long-term continuous operation.

Dual Fieldbus Communication & Versatile High-Precision I/O Configuration

Schneider ATV320U40N4C comes with native Modbus RTU and CANopen dual fieldbus protocols for seamless integration with industrial PLC and HMI systems, supporting real-time operational data monitoring, remote parameter tuning and fault log retrieval. Optional expansion cards extend compatibility with mainstream industrial networks including PROFINET, EtherNet/IP, EtherCAT and Profibus. Equipped with 7 multi-function discrete inputs including dedicated STO interface, 3 relay outputs and 3-channel 10-bit high-precision analog terminals, it supports 0-10V voltage, ±10V differential voltage and 4-20mA current signal access, meeting complex interlock control and high-precision data acquisition requirements for medium-heavy duty automated machinery.