Siemens 3VA1150-6ED32-0AA0 — SENTRON MCCB, 50 A, 220 kA IC
The Siemens 3VA1150-6ED32-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. It carries a continuous current rating of 50 A at 40 °C, derating to 45 A at 70 °C — the thermal curve matters if your enclosure runs hot. The TM210 overcurrent release provides fixed thermal-magnetic protection; there is no electronic trip unit, no communication function, and no undervoltage release on this variant. Breaking capacity is the headline number here: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 500 V or 690 V. That 220 kA figure at 240 V is high for a 50 A frame — it means this breaker can interrupt a fault upstream of a large transformer without the arc flashing over. The 17 kA at 690 V is the limiting case for 3-phase 690 V systems; verify your available fault current stays under that threshold.
Dimensions and panel fit
The 3VA1150-6ED32-0AA0 measures 70 mm deep, 76.2 mm wide, and 130 mm tall. That 76.2 mm width (3 inches) is standard for a 3-pole MCCB in this frame size — it occupies three 25 mm DIN positions if mounted on a DIN rail, or a fixed panel-mount footprint. The IP40 front protection means it is splash-safe from the front but not sealed against hose-down; keep it inside the enclosure, not on the door.