The SENTRON 3VA2440-5HN32-0DH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, designed to interrupt fault currents up to 187 kA at 240 VAC. It carries a continuous current of 400 A across the full ambient range from 40 °C to 70 °C — no derating needed within that window.
Breaking capacity across voltage levels
At 415 V and 440 V the breaking capacity is 121 kA; at 500 V it drops to 75.6 kA, and at 690 V it is 9 kA. The 9 kA at 690 V is a sharp reduction — if your system runs at 690 V, verify the available fault current stays under that limit.
The lifecycle stage is listed as current — meaning the manufacturer still produces this order code. No successor has been announced.
Panel integration and dimensions
The breaker measures 138 mm wide, 248 mm high, and 110 mm deep — a standard footprint for a 400 A frame.
Built-in auxiliary and release options
The trip indicator provides local visual confirmation of a fault trip.