Breaking capacity and thermal derating
The 3VA2063-6HN32-0AB0: Breaking capacity drops with system voltage: 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4 kA at 690 V. The 63 A rating holds from 40 °C through 50 °C ambient; above that, derate linearly to 53.55 A at 70 °C. For a panel builder, this means the breaker can be installed in a warm enclosure without upsizing the frame, provided the load current stays under the derated curve at the expected ambient. The unit ships with 2 auxiliary switches (HP type) pre-installed. No undervoltage release, no shunt trip, no ground-fault monitoring — the auxiliary release slot is empty. If downstream signaling or remote trip is required, those options must be added at ordering or retrofitted via the accessory slot.
Panel fit and environmental limits
Footprint: 105 mm wide × 181 mm high × 86 mm deep. Front-face protection is IP40, so the breaker is suitable for a dry indoor panel but not for washdown zones. Operating range is -25 °C to +70 °C; storage from -40 °C to +80 °C. Maximum power loss is 5.4 W — negligible for thermal budgeting in a densely packed enclosure.