Interrupting capacity and what it means for panel coordination
The 3VA2163-6HN32-0CH0: 242 kA at 240 V is the peak short-circuit rating — it tells you this breaker can safely interrupt a fault up to that level without welding contacts or venting arc gas into the enclosure. At 415 V it still holds 187 kA, and at 690 V it drops to 3.7 kA, which is typical for a 63 A frame at that voltage. For a panel builder, that 242 kA number means this MCCB can sit near the transformer secondary without needing a current-limiting fuse upstream to protect it, as long as the available fault current stays under that threshold.
Thermal derating and ambient conditions
The 63 A rating holds flat from 40 °C to 70 °C. The ETU350 trip unit compensates digitally.
Physical fit and panel integration
The 3VA2163-6HN32-0CH0 measures 86 mm deep, 105 mm wide, and 181 mm tall.
Lifecycle and sourcing posture
Lifecycle status is current. The undervoltage release is present. No communication function is built in.