What this MCCB carries and where it fits
The Siemens SENTRON 3VA2063-5HN32-0AE0 is a 3-pole molded case circuit breaker rated for 63 A continuous with no derating across the full 40 °C to 70 °C operating range — that means the full 63 A holds even in a warm, uncooled panel section. Its interrupting capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V, so it handles high-fault utility feeds or transformer secondaries without cascading upstream. The 800 V rated insulation voltage gives headroom for 480 V and 600 V class systems. Line protection design means the trip curve is shaped for cable and busbar protection, not motor inrush — pair it with a contactor or starter for motor branch circuits.
Panel space and integration
The breaker footprint is 105 mm wide, 181 mm tall, 86 mm deep — standard SENTRON 3VA2 frame size. It mounts on a DIN rail or screws directly to a backplate. The 5.4 W maximum power loss is low enough that adjacent devices in a crowded enclosure won't see thermal crosstalk. It ships with 4 auxiliary switches (HQ design) and the basic switch already fitted — no field assembly of internal accessories needed. The undervoltage release and ground-fault monitoring are omitted on this variant, so if those are required, specify the -5HN32-0AE0 with the appropriate release module or choose a different option.