Interrupting capacity and selectivity — the numbers that decide coordination
The 3VA1096-4ED32-0AD0 is a 3-pole SENTRON molded case circuit breaker rated 16 A continuous at 40 °C through 55 °C, derating to 15 A at 60 °C and above. What sets this MCCB apart is its interrupting capacity: 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and still 11.9 kA at 690 V. That 121 kA at 240 V means it handles a 121,000 amp fault without rupturing — critical for high-fault service-entrance panels or distribution downstream of large transformers where available fault current exceeds 100 kA. The 75.6 kA at 415 V covers most European industrial mains; the 11.9 kA at 690 V is enough for 690 V drives and motor control centers.
Width 76.2 mm (3 in), height 130 mm (5.12 in), depth 70 mm (2.76 in). That 76.2 mm width is three standard 25.4 mm module spaces — it snaps onto a 35 mm DIN rail and occupies three adjacent slots in a distribution board. Depth of 70 mm means it clears most 120 mm deep enclosures without forcing a deeper can. The 3VA1096-4ED32-0AD0 ships without an undervoltage release or shunt trip; if your panel design requires one, it must be added externally.