The ATH630U40N4Z is a Schneider Electric Altivar HVAC ATH600 series variable speed drive rated for 4.0 kW normal duty and 3 kW heavy duty motor loads on a 380-480 V three-phase supply. It integrates a Class C2 EMC filter and supports STO (safe torque off) at SIL 3 / PL e, per the safety standards listed on the datasheet.
Line current at normal duty is 6.956 A at 380 V and 6 A at 480 V; heavy-duty draws 5.4 A at 380 V and 4.7 A at 480 V. The apparent power is 5.0 kVA normal duty and 3.9 kVA heavy duty. These figures govern the upstream protection sizing and cable selection — the heavy-duty current is the binding number for continuous motor overload scenarios.
Application Functions
Built-in functions include fire mode, forced fire mode, PID controller with up to three additional PID loops, damper control, underload detection for broken belt, scroll compressor management, skipped frequencies, catch on the fly, and cybersecure firmware update. These are directly relevant for HVAC pump, fan, and compressor applications.
