Siemens SENTRON 3VA4150-6ED34-0AA0 — 50 A MCCB with TM210 Release
Current Ratings Across Ambient Temperature
The 3VA4150-6ED34-0AA0 is rated 50 A at 40 °C, but the continuous current derates as panel ambient rises: 49 A at 45 °C, 47 A at 50 °C, 46 A at 55 °C, 44 A at 60 °C, 43 A at 65 °C, and 41 A at 70 °C. For a cold-storage or freezer application where ambient stays below 25 °C, the breaker can carry its full 50 A without derating; in a warm machine cabinet near the 60 °C mark, plan for 44 A continuous.
At 240 V AC the breaker clears 100 kA symmetrical; at 480 V AC it clears 65 kA; at 600 Y/347 V it clears 25 kA. These figures support selective coordination downstream of a larger upstream device, provided the let-through energy of the upstream breaker stays below the 3VA4150's short-time withstand rating. The 690 V AC rated operating voltage covers most industrial line-to-line systems.
The breaker measures 76.2 mm wide, 129.4 mm tall, and 75.1 mm deep — a standard 3-pole MCCB footprint that mounts on a DIN rail or direct-panel base. No neutral conductor is upgradeable or retrofittable; the breaker ships as a 3-pole device without a switched neutral.