MCCB with 440 kA interrupting rating — what that means for your panel
The Siemens SENTRON 3VA2110-0KP32-0AA0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. Its ETU850 electronic trip unit gives you adjustable N-conductor protection (OFF, 20 % to 160 %) and communication capability for integration into a monitored distribution system. The headline number here is the 440 kA breaking capacity at 415 V AC; that means this breaker can safely interrupt a fault current up to 440 kA without welding contacts or cascading failure upstream.
Dimensions are 105 mm wide by 181 mm tall by 86 mm deep — a standard footprint for a 3-pole MCCB in this current class. The ETU850 supports communication, which means you can pull trip data and status into a higher-level monitoring system without adding a separate I/O module per breaker.