SENTRON 3VA2450-5MN32-0BC0 — 500 A MCCB for Motor Protection
It carries a 187 kA interrupting capacity at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V — so the short-circuit rating holds up across common industrial voltages, with the 690 V figure being the one to watch for high-voltage bus applications.
Thermal Rating and Temperature Derating
At 55 °C it derates to 495 A, at 60 °C to 490 A, at 65 °C to 485 A, and at 70 °C to 480 A. That means in a warm panel — say 60 °C — you lose 10 A of headroom; plan your load margin accordingly.
Protection and Auxiliary Features
No communication function or trip indicator is fitted on this version.