The Siemens 3VA4110-4ED34-0AA0 is a 3-pole SENTRON molded-case circuit breaker (MCCB) rated 100 A at 40 °C, with a TM210 thermal-magnetic release for system protection in distribution panels and motor control centers. Its interrupting capacity hits 65 kA at 240 V AC and 25 kA at 480 V AC — that's SCCR headroom for most industrial feeders and downstream coordination without cascading upstream. Rated operating voltage goes to 690 V AC, and the breaker handles ambient temperatures from -25 °C to 70 °C, with a 22.8 W max power loss at full load.
The 100 A rating at 40 °C is the continuous current you can push through it in a typical 40 °C panel ambient. Derate to 87 A at 70 °C if the enclosure runs hot — the thermal curve matters for real-world loading. 65 kA at 240 V means it safely interrupts a fault up to that level without blowing apart or welding contacts, so you can place it near high-capacity transformers or upstream of smaller branch breakers. No adjustable trip unit, no ground-fault module, no communication. It's a straight system-protection breaker for fixed-load feeders.
The breaker measures 76.2 mm wide, 129.4 mm tall, and 75.1 mm deep.