Integrator note – 3VA2063-5HN32-0AF0
The Siemens 3VA2063-5HN32-0AF0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for continuous 63 A at 40–70 °C ambient — no derating across that span, which simplifies panel thermal budgeting.
This MCCB delivers 187 kA at 240 V AC, 121 kA at 415 V AC, and 121 kA at 440 V AC — the same rating across the 415–440 V band, which is common in IEC 60947-2 installations. At 500 V it still holds 75.6 kA; at 690 V it drops to 3 kA.
Fits standard SENTRON 3VA2 panel cutouts and busbar systems. Power loss is 5.4 W maximum at rated current, which matters for enclosed panels with limited natural convection.
Chain of custody note
This MCCB is a genuine Siemens SENTRON product. Verify the date code on the side label matches the production batch documentation when the part arrives — any mismatch is a red flag for gray-market diversion.