The Siemens 3VA4110-5ED34-0AA0 is a 3-pole SENTRON molded-case circuit breaker rated 100 A at 40 °C, with an interrupting capacity of 85 kA at 240 V AC and 35 kA at 480 V AC. No ground-fault monitoring, no undervoltage release, no communication module — this is a straight system-protection breaker sized for main or feeder duty where you don't need aux electronics.
The 100 A rating holds only at 40 °C ambient inside the enclosure. At 50 °C it's 96 A; at 60 °C it drops to 91 A; at 70 °C it's 87 A. The maximum power loss of 22.8 W is what the enclosure has to vent; that's modest for a 100 A frame, but in a sealed box with other breakers it adds up. Dimensions are 76.2 mm wide (3 in), 129.4 mm tall, 75.1 mm deep. That's a standard SENTRON 3VA4 frame footprint — it fits the same panel cutout and bus-bar spacing as the rest of the 3VA4 family. The IP40 front protection means it's splash-proof from the front face but not sealed; keep it inside the enclosure, not on the panel door.
