What this MCCB actually carries
Siemens SENTRON 3VA1125-3EF32-0BH0 is a 3-pole molded case circuit breaker rated 25 A continuous at 40 °C — and holds that full 25 A right up to 50 °C before it starts to derate (24 A at 55 °C, 23 A at 70 °C). That thermal curve means you don't lose headroom in a warm panel unless it's pushing 55 °C inside. Interrupting capacity varies by system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 V or 690 V. That's enough for most secondary distribution panels downstream of a transformer — the 415 V figure covers common IEC industrial feeds. Max power loss runs 11 W — manageable for thermal budgeting in a crowded enclosure.
What's built in — and what's not
If your control scheme needs the breaker to drop out on loss of control voltage, you're covered. This is a straight line-protection MCCB with mechanical auxiliaries — for a managed or communicating breaker you'd step to a different suffix.
Active — no lifecycle concern
Trip indicator is present — visual confirmation of trip state without needing to open the cover.