Schneider ATV320U75N4B Altivar 320 Variable Frequency Drive, 7.5kW 3-Phase 380-500V Compact Industrial VFD

Schneider ATV320U75N4B Altivar 320 7.5kW 3-Phase 380-500V VFD For Heavy-Duty Industrial Motor Variable Speed Regulation

Schneider ATV320U75N4B compact book-type variable frequency drive is a high-performance 7.5kW heavy-duty model in the Altivar 320 series. Equipped with built-in Class C2 EMC filter, certified multi-functional safety systems and dual native fieldbus communication, this high-power VFD delivers robust high-torque output, ultra-wide precision speed regulation and superior environmental durability. It is perfectly suited for heavy-duty industrial fans, large-scale process pumps and heavy-load automated production machinery in demanding factory automation environments.

Schneider ATV320U75N4B Altivar 320 7.5kW Three-Phase Compact VFD For Heavy-Duty Factory Automation

1. Industrial Structural Design & Superior Environmental Adaptability of Schneider ATV320U75N4B

Space-Saving Book-Style Mounting Structure

Schneider ATV320U75N4B adopts a durable vertical book-shaped casing supporting standard wall-mounted and DIN rail installation, adapting to compact control cabinet layouts and professional OEM machine integration. With optimized dimensions of 150mm width, 308mm height and 232mm depth and a net weight of 4.4kg, the unit enables orderly side-by-side device arrangement to maximize cabinet space utilization. Featuring IP20 enclosure protection grade and UL Type 1 conformity, the unit effectively blocks dust and solid particle intrusion, ensuring stable and reliable internal circuit operation in harsh industrial workshop environments.

Wide-Range Temperature & Mechanical Resistance Performance

Schneider ATV320U75N4B guarantees full-power continuous operation from -10°C to +50°C without power derating, and supports conditional operational output up to 60°C with reasonable 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, 10m/s² high-frequency vibration acceleration and 150m/s² instantaneous mechanical shock, enabling long-term unattended continuous operation in complex and rigorous factory working conditions.

2. 7.5kW Heavy-Duty Electrical Performance & Precision Motor Control of Schneider ATV320U75N4B

Standard Heavy-Duty Electrical Parameters

Schneider ATV320U75N4B features 7.5kW heavy-duty rated motor power (10HP) with 17.0A nominal output current and 16.2kVA apparent power at 500V, engineered for high-power 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 26.5A maximum input current at 380V and 18.7A at 500V, with stable voltage and current output eliminating motor speed deviation under variable heavy-load conditions and maintaining consistent mechanical operational efficiency.

High-Torque Regulation & Intelligent Energy-Saving Operation

Schneider ATV320U75N4B delivers 170% to 200% transient overtorque capacity to handle instantaneous heavy startup loads and sudden load fluctuations for 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. Dedicated fan and pump energy-saving algorithms reduce power consumption by up to 30% during continuous cyclic operation, significantly lowering long-term operational and maintenance costs.

3. Certified Safety System & Multi-Protocol Networking of Schneider ATV320U75N4B

Multi-Functional Industrial Safety & Full-Grade Protection

Schneider ATV320U75N4B 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 phase 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 ATV320U75N4B 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 heavy-duty automated machinery.