Schneider ATV320U04N4B Altivar 320 Variable Frequency Drive, 0.37kW 3-Phase 380-500V Compact Motor Inverter

Schneider ATV320U04N4B Altivar 320 0.37kW 3-Phase 380-500V VFD For Low-Power Industrial Asynchronous Motor Speed Control

Schneider ATV320U04N4B compact three-phase variable frequency drive delivers 0.37kW low-power regulation, built-in Class C2 EMC filtering and certified machine safety functions, providing precise and stable speed control for small fans, micro pump units and lightweight automated OEM machinery.

Schneider ATV320U04N4B Altivar 320 0.37kW Three-Phase VFD For Compact Low-Power Motor Applications

1. Compact Structural Design & Standardized Hardware Specifications of Schneider ATV320U04N4B

Book-Style Miniature Form Factor

Schneider ATV320U04N4B adopts a slim book-type casing optimized for compact cabinet installation and OEM machine integration. The lightweight panel-mount structure saves substantial control cabinet space and supports neat side-by-side device arrangement. IP20 enclosure rating prevents dust and solid particle intrusion, maintaining stable internal circuit operation in standard indoor industrial environments.

Precise Low-Power Electrical Parameters

Schneider ATV320U04N4B features 0.37kW rated motor power and 1.5A rated output current, perfectly matching low-power three-phase asynchronous motors. The drive accepts 380V to 500V three-phase AC input with standard 15% voltage fluctuation tolerance. Compatible with 50Hz and 60Hz global grid standards, the unit delivers consistent low-power output without speed deviation or current surge.

2. Certified Safety Mechanism & Multi-Level EMC Immunity of Schneider ATV320U04N4B

Integrated Industrial Safety Functions

Schneider ATV320U04N4B comes with native Safe Torque Off (STO) and Safely Limited Speed (SLS) functions compliant with international machinery safety standards. Built-in safety modules eliminate external safety relay dependencies, simplifying circuit design and reducing hardware costs. The reliable safety system ensures secure motor shutdown and speed limitation during equipment maintenance and fault events.

Class C2 EMC Filtering & Industrial Anti-Interference

Schneider ATV320U04N4B integrates a standard Class C2 EMC filter to suppress high-frequency switching noise and electromagnetic radiation. The unit passes Level 3 electrostatic discharge immunity, Level 4 fast transient immunity and Level 3 surge immunity tests. Superior electromagnetic compatibility guarantees stable operation of nearby sensors, signal cables and low-voltage control components in complex workshop environments.

3. Versatile I/O Configuration & Intelligent Motor Regulation of Schneider ATV320U04N4B

High-Precision Programmable I/O Terminals

Schneider ATV320U04N4B equips 7 multi-function discrete inputs, 3 relay outputs and high-resolution analog terminals with 10-bit sampling accuracy. Analog ports support 0-10V voltage and 4-20mA current signal acquisition for diverse sensor connection. One programmable pulse input supports 0-30kHz frequency signal detection, meeting customized speed monitoring and closed-loop control requirements.

Wide-Range Frequency & Adaptive Motor Control

Schneider ATV320U04N4B supports ultra-wide 0.1Hz to 599Hz output frequency adjustment for flexible low-speed constant-torque and high-speed precision operation. Adaptive sensorless vector control stabilizes torque output under variable light loads, while adjustable 2kHz to 16kHz switching frequency reduces motor noise and vibration. Optimized energy-saving algorithms lower power consumption for continuous fan and pump operation scenarios.