63 A MCCB with 242 kA interrupting rating
The Siemens SENTRON 3VA2063-6HL32-0AD0 is a 3-pole molded case circuit breaker rated for 63 A continuous current, sized for line-protection duty in distribution panels. Its interrupting rating hits 242 kA at 240 V AC — that is the peak fault it can safely clear without welding contacts or venting arc gas into the enclosure. At 415 V and 440 V it still holds 187 kA, dropping to 121 kA at 500 V and 3 kA at 690 V. The breaker carries a full thermal-magnetic trip curve that holds 63 A across the ambient range from 40 °C to 70 °C — no derating needed in a warm panel. Insulation voltage is rated 800 V, so it handles 480 V delta or 600 V wye systems without creepage concerns.
Panel fit and wiring
At 105 mm wide on the DIN rail, this 3-pole MCCB takes standard panel space for a 63 A frame. Depth is 86 mm, height 181 mm — measure your enclosure depth before ordering; the line and load lugs need clearance for 90° cable bends. The supplied basic switch carries three HQ auxiliary contacts for status feedback back to the PLC or annunciator panel.