The Siemens SENTRON 3VA1050-2ED36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 50 A at 40 °C and a TM210 thermal-magnetic release. It delivers a breaking capacity of 52.5 kA at 240 V AC, 32 kA at 415 V, and 7.5 kA at 690 V, so it handles high-fault utility feeds and transformer-secondaries where the available short-circuit current is substantial. The 70 mm depth, 76.2 mm width, and 130 mm height fit standard panel layouts — the 3-pole footprint matches the 3VA family, so a panel cut for a 3VA1010-2ED32-0AD0 accepts this unit without rework.
The 50 A rating holds flat from 40 °C to 50 °C, then drops to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. For a panel that runs warm — say 55 °C ambient inside the enclosure — you lose 1 A; at 70 °C you lose 5 A. That matters when sizing for a continuous load near the breaker's nameplate; the TM210 release's thermal element tracks this curve, so a 45 A load at 70 °C is still within the continuous rating.