What this MCCB is and what it does
The Siemens 3VA2010-7KP32-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection, carrying 100 A continuously from 40 °C up to 70 °C without derating — that means it holds full rated current across the typical panel ambient range, so you don't have to oversize for a hot enclosure. Breaking capacity hits 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3 kA at 690 V — the 330 kA figure at 240 V is what you'd look at for high-fault industrial panels fed from a large transformer; the 690 V rating drops to 3 kA, so if you're on a 690 V system, verify the available fault current is under that. It is a 3-pole unit with an ETU850 electronic trip unit and adjustable N-conductor protection (OFF, 20 % to 160 %).
Integration and mounting
Dimensions are 86 mm deep, 105 mm wide, 181 mm tall — that's a standard SENTRON 3VA2 footprint, so it drops into the same panel cutout as other 3VA2 breakers of this frame size. Front face carries an IP40 protection class — fine for a dry indoor panel, but not for washdown zones or outdoor cabinets without a secondary enclosure. Communication function is built in (no external module required for basic signaling), and the reference code per IEC 81346-2 is Q, which aligns with standard circuit-breaker designation in panel schematics.