Schneider Electric ATH230U40N4 Altivar HVAC ATH230 4 kW 380-500 V 3-Phase IP20 Variable Frequency Drive

The Schneider Electric ATH230U40N4 is a 4 kW variable frequency drive from the Altivar HVAC ATH200 range, built for HVAC OEM pump, fan, and compressor panels. It accepts a 380-500 V 3-phase supply, delivers a 9.5 A nominal output current, and mounts in IP20 enclosures with an integrated Class C2 EMC filter and native Safe Torque Off (STO) safety.

Technical Specifications

Certifications & Standards

• cULus
• CE
• UKCA
• IEC 61800-5-1
• IEC 61800-3
• UL 508C

Selection Notes

Size the ATH230U40N4 to the driven motor's nameplate current, not the drive's frame rating: its 9.5 A nominal output current at 380-500 V sets the ceiling for the connected pump, fan, or compressor motor. Within the ATH230 line, the 380-500 V 3-phase variant applies where the panel's incoming 3-phase supply matches that band — pick the sibling with a different current or supply rating if the OEM panel's motor or incoming feed differs. The integrated STO input lets the drive sit inside a safety circuit (SIL 3 / PL e) without an external contactor to remove torque, and the native Modbus and BACnet MS/TP ports let a building automation system read status and write speed setpoints directly, without a protocol gateway.

Applications

The 3-phase, 380-500 V rating targets HVAC OEM panels that run asynchronous or synchronous pump, fan, and compressor motors up to 4 kW. Native BACnet MS/TP and Modbus serial ports let it report status and accept speed setpoints from a building management system without a separate gateway.