SENTRON 3VA1150-3ED16-0AA0 — 1-pole MCCB, 50 A, TM210 release
It carries a TM210 thermal-magnetic overcurrent release, rated 50 A continuously at 40 °C ambient, with a slight derating curve down to 45 A at 70 °C. The 52.5 kA interrupting rating at 240 V AC makes it suitable for high-fault service-entrance or distribution panels where short-circuit current is substantial; at 415 V AC the rating drops to 7.5 kA, which still covers most industrial secondary distribution scenarios. The 25.4 mm (1 in) width per pole means it occupies one standard DIN-rail module, so a multi-pole assembly or group installation stays compact.
The 50 A continuous rating at 40 °C is the baseline; at 55 °C it derates to 49 A, at 70 °C to 45 A, so if the breaker lives in a warm enclosure, account for the drop. The insulation voltage is rated 500 V, and operating voltage is 415 V AC or 125 V DC, which covers standard 400 V three-phase and 110 V DC control circuits. Front IP40 protection means it is splash-proof from the front but not sealed against dust ingress into the enclosure.
At 25.4 mm wide, 130 mm tall, and 70 mm deep, this MCCB snaps onto a standard DIN rail (EN 60715) and fits within a single module slot. The compact footprint leaves room for adjacent breakers or auxiliary devices in a crowded distribution board. No undervoltage release, no shunt trip, and no communication function are built in — it is a straightforward thermal-magnetic breaker for line protection, not a smart or remotely tripped device.