The Siemens SENTRON 3VA1163-6GE46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated 63 A continuous current with a TM220 thermal-magnetic release. Its interrupting capacity hits 220 kA at 240 V AC, tapering to 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 500 V or 690 V — so the voltage class of the distribution bus determines which breaking number governs the installation. The TM220 release is adjustable for overloads; the magnetic short-circuit pickup is fixed at 630 A (10× Iu).
Thermal derating and panel fit
Current rating holds at 63 A up to 50 °C ambient, then derates linearly to 58 A at 70 °C. If the panel ambient runs hot — near a furnace line or in a sealed enclosure — the 58 A ceiling at 70 °C is the number to size downstream conductors against. The case dimensions (130 mm height, 101.6 mm width, 70 mm depth) fit a standard SENTRON 3VA1 panel cutout; the 4-pole width is wider than a 3-pole, so verify the DIN-rail or mounting-plate spacing before committing the BOM.
What the ratings mean for the installer
The 220 kA at 240 V is a high-interrupting-capacity (HIC) rating — it safely clears fault currents up to that level without rupturing, which matters when the MCCB sits close to a large transformer or in a high-fault industrial distribution panel. The IP40 protection on the front face means the breaker is protected against solid objects >1 mm but not against water ingress; it is intended for indoor panel mounting, not washdown areas. The 800 V rated insulation voltage (Ui) and 600 V DC max operational voltage (Ue) cover most low-voltage industrial bus systems up to 690 V AC.