SENTRON 3VA1 MCCB — 32 A, 3-Pole, Line Protection
It carries a 75.6 kA interrupting capacity at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V — these are the fault-clearing limits at each voltage, not the load rating. The 32 A rating holds flat through 50 °C; above that it derates to 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C.
The interrupting ratings at multiple voltages let you coordinate this MCCB downstream of a larger feeder breaker. At 240 V the 75.6 kA figure is high enough for most service-entrance or distribution-panel fault levels in North American 240/120 V split-phase or 240 V delta systems. At 415 V the 52.5 kA covers typical European 400 V industrial networks. The TM240 release is thermal-magnetic, so short-circuit response is instantaneous above the magnetic pickup; no electronic adjustment or communication function is fitted (no communication module, no phase-failure detection, no ground-fault monitoring).
No auxiliary contacts are fitted (auxiliary contact version: without), so any status feedback requires an external auxiliary switch block. No undervoltage release is installed.