The Siemens SENTRON 3VA2110-7MS36-0AJ0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to that ceiling. Its maximum interrupt rating of 1 500 A and interrupting capacity of 330 kA at 240 V AC make it suitable for high-fault installations where upstream SCCR headroom is critical.
Interrupting capacity and selectivity
Interrupting capacity drops from 330 kA at 240 V to 242 kA at 415 V and 440 V, then to 187 kA at 500 V, and falls sharply to 3.7 kA at 690 V. That steep decline at 690 V means this breaker is not intended for primary 690 V distribution — use it on the 400 V class bus where it still delivers 242 kA, enough for most industrial secondary feeders. The 100 A rating holds flat from 40 °C through 70 °C ambient — no thermal derating curve to calculate. That simplifies panel coordination when the breaker sits near heat sources like drives or transformers.
Integration and panel fit
Dimensions: 181 mm high, 105 mm wide, 86 mm deep. The 86 mm depth is the key panel clearance dimension — it fits standard 150 mm deep enclosures with room for wiring gutters. Mounts on a DIN rail or direct panel; the supplied basic switch is the 3VA21107MS360AA0 variant. Auxiliary switch configuration: 2 auxiliary switches plus 1 trip alarm switch HP. No undervoltage release, no ground-fault monitoring, no communication function — this is a standalone thermal-magnetic MCCB, not a smart breaker.