What this MCCB is and what it does
The Siemens SENTRON 3VA2110-5JP32-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Its interrupting capacity hits 187 kA at 240 VAC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. That 187 kA figure at 240 V means it can safely clear a fault at the full available short-circuit current of a large industrial service entrance or a high-capacity distribution panel without cascading upstream. The 800 V rated insulation voltage confirms it is built for 690 V line-to-line systems with margin. This MCCB is designed for line protection and includes an undervoltage release (UVR) as standard — the auxiliary release type is undervoltage release. It also carries a communication function, which means it can integrate into a monitoring or control network for remote trip indication and status. The basic switch variant supplied is 3VA21105JP320AA0.
Dimensions and panel fit
The 3VA2110-5JP32-0CA0 measures 181 mm high, 105 mm wide, and 86 mm deep. That 105 mm width is the standard 3-pole MCCB footprint for the SENTRON 3VA platform — it fits the same DIN-rail or screw-mount backplate as other 3VA breakers in the same frame size. No special adapter needed for a standard panel cutout.