SENTRON 3VA1125-4EF32-0HH0 — MCCB for Line Protection
It carries 25 A continuously at 40 °C and delivers a high interrupting capacity — 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V and 690 V.
Interrupting Capacity and Thermal Derating
The interrupting ratings span from 121 kA at 240 V down to 11.9 kA at 690 V, giving selectivity headroom for high-fault panels. The continuous current holds at 25 A from 40 °C to 50 °C, then derates to 24 A at 55–60 °C and 23 A at 65–70 °C — useful when the breaker sits in a warm enclosure near other heat sources.