This breaker's interrupting rating varies sharply with system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V.
Thermal derating — the real-world current limit
Above that it derates: 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C.
The 3VA1032-3ED32-0BH0 measures 70 mm deep, 76.2 mm wide, and 130 mm tall — a standard MCCB footprint that fits most DIN-rail or panel-mount enclosures. The undervoltage release (UVR) is factory-installed and wired to the control circuit — if the control voltage drops, the breaker trips, which is the expected behavior for emergency-stop or safety-related isolation schemes.
