Breaking capacity — what the voltage columns mean for panel coordination
The 3VA1150-4GD42-0AA0: This breaker's interrupting capacity drops as system voltage climbs — that's normal for any MCCB, but the numbers here matter for selectivity studies. At 240 V it clears 121 kA; at 415 V it's 75.6 kA; at 440 V it's 52.5 kA; at 500 V and 690 V it's 11.9 kA. If your panel's fault current at the line side exceeds these values at the actual system voltage, you need an upstream current-limiting device or a higher-rated frame. The 50 A continuous rating holds across 40–50 °C ambient; above that it derates smoothly to 45 A at 70 °C.
Physical fit and panel integration
The 3VA1150-4GD42-0AA0 measures 130 mm high, 101.6 mm wide, and 70 mm deep — a standard 4-pole MCCB footprint for DIN-rail or screw-mount panel installation. Front IP40 protection means it's fine inside a closed cabinet but not for washdown environments. The TM210 release is fixed-trip, not adjustable, so coordination settings are baked into the breaker selection — no dials to mis-set during commissioning.