Siemens 3VA2340-7HN32-0DL0 — 400 A SENTRON MCCB, 3-Pole, Line Protection
It carries a 330 kA breaking capacity at 240 V, stepping down to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V — the high interrupting ratings at lower voltages suit it for fault-current-heavy service-entrance or main-breaker positions where upstream coordination demands full-rated SCCR. Thermal derating begins above 55 °C: it holds 400 A through 50 °C, then drops to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. A trip indicator is present.
Integration Notes
The 3VA2340-7HN32-0DL0 mounts into a standard SENTRON panel or enclosure footprint. The UVR coil requires a separate control voltage — verify the undervoltage release rating against your control circuit before wiring. The auxiliary switch set (2+1+1) provides status feedback for PLC or SCADA monitoring without an add-on module.