What the breaking capacity ratings mean
The 3VA2110-5MN36-0AD0: This breaker punches 187 kA at 240 V, drops to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and still holds 17 kA at 690 V. Those are the interrupting ratings at each voltage — the fault current it can safely clear without welding contacts or venting plasma. For a 100 A frame, that's a high-interrupting-capacity (HIC) device; it handles stiff utility feeds or transformer-secondaries where fault current runs hot.
Thermal derating and site conditions
Rated full 100 A from 40 °C through 50 °C ambient. At 55 °C it derates to 96 A, at 60 °C to 94 A, at 65 °C to 92 A, and at 70 °C to 90 A. If your panel sits near a hot motor or a sunny wall, that derating curve tells you exactly where the trip threshold lands — no guessing. Operating range is -25 °C to 70 °C; storage from -40 °C to 80 °C. Max power loss is 75 W, so account for that heat in your enclosure sizing.
Panel fit and auxiliary complement
Dimensions are 105 mm wide, 181 mm tall, 86 mm deep — a standard 3-pole MCCB footprint for DIN-rail or screw-mount panel integration. Comes with 3 auxiliary switches HQ (high-quantity contacts for status feedback to a PLC or indication lamp). No undervoltage release, no ground-fault monitoring, no communication module on this variant — it's a straightforward motor-protection breaker with phase-failure detection built into the ETU350M trip unit.