Integrator note — 3VA1150-3EF32-0CC0
Its interrupting capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that govern its placement in a selective coordination study, not just a fault-current label. The 70 mm depth and 76.2 mm width fit a standard panel footprint; the IP40 front rating means the breaker face is protected against solid objects over 1 mm but not against moisture, so keep it out of washdown zones.
Thermal derating and auxiliary configuration
The 50 A rating holds flat from 40 °C through 50 °C, then steps down: 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.