Interrupting capacity hits 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 7.5 kA at 690 V. That's a fault-current rating that clears into high-capacity transformer secondaries or busway feeds without cascading upstream. Three poles, adjustable trip class, phase failure detection, and a communication function for remote monitoring.
Current-production status per Siemens — no phase-out notice, no last-time-buy window. Mounts in a standard DIN-rail panel footprint: 138 mm wide, 248 mm tall, 110 mm deep.
What this MCCB is for
Motor protection MCCB for induction motor circuits where the ETU550M electronic trip provides adjustable overload class and phase-loss detection. Three-pole, 250 A frame — sized for a motor load up to that continuous rating, with the interrupting capacity to handle high-fault panel feeds.