The 3VM1150-3ED42-0AA0: Breaking capacity is 76 kA at 240 V, 53 kA at 415 V, 32 kA at 440 V, and 12 kA at 500 V — that covers most industrial distribution panels fed from a 400 V-class transformer. The 690 V rated insulation voltage (Ui) means it's comfortable in 480 V systems with margin. Current rating holds flat at 50 A from 40 °C through 50 °C, then derates to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.
The TM210 release has an adjustable li (long-time pickup) up to 500 A, but the frame rating is 50 A, so that adjustment range is for coordination tuning, not uprating.
Lifecycle status is current — no phase-out or NRND flag. That means it's still a standard catalog item from Siemens, not a last-time-buy scavenger hunt.