What this MCCB delivers
The Siemens SENTRON 3VA1010-3ED42-0JH0 is a 4-pole molded case circuit breaker rated for 100 A continuous at 40 °C, with a maximum breaking capacity of 75.6 kA at 240 V. That breaking figure drops to 52.5 kA at 415 V and 32 kA at 440 V, so the voltage on your line determines whether this frame clears a high-fault scenario or needs upstream coordination. The 100 A rating holds steady through 50 °C; above that it derates to 98 A at 55 °C and 91 A at 70 °C, which matters if the breaker sits in a warm enclosure alongside other heat sources.
Line protection and auxiliary fit
This variant is designed for line protection — it's the feeder or main breaker role, not motor-circuit protection with an integrated overload. It ships with a shunt trip (STL) auxiliary release and a 2-auxiliary-switch plus 1-trip-alarm-switch HQ configuration, so you get remote trip capability and status feedback without adding a separate accessory module. The trip indicator and voltage trigger are built in. No undervoltage release, no ground-fault monitoring, no communication module — it's a straightforward power breaker for distribution panels where you need the shunt trip for emergency-off or remote shedding.
Panel fit and environment
Footprint is 101.6 mm wide by 130 mm tall by 70 mm deep — a 4-pole frame that fits standard MCCB mounting in a distribution board. Operating range is -25 °C to 70 °C, storage from -40 °C to 80 °C. Max power loss is 25 W, so factor that into your enclosure thermal budget if the panel is densely packed. Rated insulation voltage is 800 V, giving headroom for 690 V line applications.