It's a 3-pole unit rated for 100 A continuous at 40 °C, with no derating through 70 °C, so it holds its full ampacity across typical panel ambient temperatures. The interrupting ratings are substantial: 242 kA at 240 V and 187 kA at 415 V, which puts it in the high-fault-current class for industrial switchboards where available short-circuit current is high.
The 100 A continuous rating is flat from 40 °C to 70 °C — no thermal derating curve to calculate, which simplifies panel sizing in warm environments. At 690 V the rating drops to 3.7 kA, so if your system voltage is higher than 500 V, confirm the available fault current stays under that limit. This is common for emergency-stop circuits or machinery that must shut down on power loss. The supplied basic switch carries order code 3VA21106HN320AA0, and the auxiliary switch configuration is 2 auxiliary switches plus 1 trip alarm switch plus 1 electrical alarm switch HQ, giving you status feedback for remote monitoring or PLC inputs.
The MCCB measures 105 mm wide, 181 mm high, and 86 mm deep. Mounting is via the four-bolt pattern typical of SENTRON 3VA frames; no DIN-rail clip on this class of breaker.