It carries 250 A continuously at 40 °C without derating, and the thermal-magnetic TM220 release handles overload and short-circuit trip curves in one package.
Breaking capacity — what the voltage columns tell you
This MCCB interrupts 187 kA at 240 V, dropping to 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. That is a steep SCCR curve — the part is clearly designed for low-voltage high-fault applications (think transformer secondaries or large busway feeds) where available fault current is extreme. At 690 V the 17 kA rating still covers most industrial motor-control center main breakers. The 4-pole frame also handles DC switching per the 3VA device manual, though the AC ratings are the headline numbers here.
Rated 250 A from 40 °C through 50 °C, then it begins to taper: 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, 223 A at 70 °C. The 70 mm depth and 140 mm width fit a standard MCCB footprint — no oddball cutout.
The lifecycle stage is listed as current — meaning this is an active, in-production catalog number from Siemens. No PCN or phase-out notice is on record.