The Siemens SENTRON 3VA2110-5JP36-0BB0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to the enclosure's thermal limit. Interrupting capacity hits 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and still holds 3.7 kA at 690 V. That makes it a line-protection breaker for high-fault panels where you need selectivity downstream of a transformer or upstream of a motor control center.
What the interrupting ratings mean for your panel
The 187 kA at 240 V and 121 kA at 415 V are the SCCR the breaker can clear without welding or rupturing — critical for coordination studies. At 690 V the 3.7 kA limit means this frame is not for 690 V distribution with high fault current; keep it on 400 V or 480 V systems where the available fault is under 121 kA. The 100 A continuous rating is flat from 40 °C to 70 °C, so you don't have to derate for a warm enclosure — that's a solid spec for a crowded panel.
Mounting and integration
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — fits standard MCCB panel cutouts and bus-bar centers. It ships with an undervoltage release (UVR) and two HP auxiliary switches, so you get remote status and undervoltage trip without adding external relays. Communication function is onboard, which simplifies integration with a BMS or PLC for load shedding and fault logging.