What the ratings mean for fit
The Siemens 3VA1010-4ED32-0KA0 is a SENTRON molded case circuit breaker (MCCB) in the line protection version, carrying a rated continuous current Iu of 100 A and a rated insulation voltage Ui of 800 V. The 100 A rating holds flat from 40 °C through 50 °C; above that it derates to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C — so in a warm panel you lose headroom, not the full rating. The interrupting capacity tells you where this breaker can sit in the fault-current hierarchy: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. Those are the SCCR values the breaker can clear without welding or rupturing; match them against your transformer or utility fault study. The TM210 overcurrent release is a fixed thermal-magnetic trip unit — no interchangeable rating plugs, so the 100 A frame is the trip setting.
Panel integration and mounting
This is a 3-pole MCCB with a width of 76.2 mm, height of 130 mm, and depth of 70 mm. IP40 on the front means it's protected against tools and wires larger than 1 mm — fine for a clean indoor panel, but not for washdown or outdoor exposure. It ships without an auxiliary contact block or undervoltage release; the shunt trip (STL) is the only integrated auxiliary release. The integrated auxiliary trip order code is 3VA9688-0BL33 if you need to order that separately. No communication function, no phase failure detection, no ground fault monitoring — this is a straight line-protection breaker, not a multifunction power monitor.