What this MCCB carries — and what it means for your panel
The 3VA1050-2ED42-0CA0: Breaking capacity is voltage-dependent: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V. That 7.5 kA at 690 V is the floor — if your fault current exceeds that at the higher voltage, this breaker isn't the right pick. Four poles, insulation voltage rated 800 V, and a TM210 thermal-magnetic overcurrent release. The undervoltage release (UVR) is built in — that's the -2ED42- suffix tell — so it drops the breaker if control voltage falls below the dropout threshold, which matters for safety circuits where loss of control power must open the load.
Panel fit and thermal budget
Footprint: 130 mm high, 101.6 mm wide, 70 mm deep. That 70 mm depth is the dimension that catches you on shallow gland plates or back-panel clearance — measure your enclosure depth before committing the BOM line. Maximum power loss is 17.1 W. In a sealed, uncooled enclosure that heat adds up — account for it in your thermal calculation alongside the other breakers in the same row. Operating temperature range -25 °C to 70 °C; storage from -40 °C to 80 °C. The storage floor is the handling limit, not the running limit — don't let a cold warehouse trip you up during commissioning.