The Siemens SENTRON 3VA1010-4ED42-0BA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying 100 A continuously up to 50 °C and derating to 91 A at 70 °C. The interrupting capacity hits 121 kA at 240 V, 75.6 kA at 415 V, and 52.5 kA at 440 V — figures that give selectivity headroom in a main or feeder panel.
Above that, it derates: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. The maximum power loss is 27.5 W.
The interrupting ratings span the common distribution voltages: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 480 V or 600 V class panel, the 11.9 kA figure at 500 V and 690 V is the limiting value — verify the available fault current at the installation point stays under that ceiling.
Undervoltage release and auxiliary options
There is no trip indicator, no voltage-trigger function, and no communication module. The basic switch supplied is 3VA10104ED420AA0. For applications needing remote signaling or energy metering, look at the communication-enabled siblings in the 3VA1 family.