Siemens SENTRON 3VA1125-6ED46-0AA0 — 25 A, 4-Pole MCCB with TM210 Release
Breaking capacity is the headline here: 220 kA at 240 V AC, 154 kA at 415 V, 121 kA at 440 V, and still 17 kA at 500 V and 690 V. The adjustable short-circuit release (Ii) can be set up to 320 A, giving flexibility to coordinate with downstream devices.
Current rating is 25 A at 45 °C and 50 °C, derating to 24 A at 55 °C and 60 °C, then 23 A at 65 °C and 70 °C. That 2 A drop across the full temperature range is modest — the breaker holds its rating well in warm enclosures. No internal communication function, no ground-fault monitoring built in; those are separate accessory modules. The motor drive option (Product Extension Optional) allows remote motorized operation for automated disconnection. Power loss is 8.5 W maximum at rated current — useful for thermal budget calculations in a sealed enclosure.
The TM210 release is fixed thermal (25 A) with adjustable magnetic (Ii up to 320 A) — coordinate the magnetic pickup with downstream breakers to avoid nuisance tripping on motor inrush or capacitor charging currents. The 4-pole design covers three-phase plus neutral protection (or switched neutral). The N-conductor protection design is listed as 'Without', meaning the neutral pole is switched but not protected — typical for TN systems where neutral overcurrent is not expected.