The Siemens SENTRON 3VA1063-3ED32-0AA0 is a 3-pole molded case circuit breaker rated 63 A at 40 °C, with a TM210 thermal-magnetic release for line protection. Interrupting capacity hits 75.6 kA at 240 V, stepping down to 52.5 kA at 415 V and 32 kA at 440 V — enough headroom for most distribution panels feeding motor control centers or lighting subboards. The TM210 release means the thermal pickup is fixed at 1.0× the frame rating, magnetic trip at 10× In — a standard curve for general distribution, not for motor-starting duty.
Rated 63 A from 40 °C through 50 °C, then derates: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, 58 A at 70 °C. If the panel ambient runs at 65 °C, the breaker is good for 60 A continuous — plan your load schedule accordingly. Power loss maxes at 17.3 W, which matters for enclosure heat rise calculations in a packed cabinet.
Width at 76.2 mm (3 in) is standard for a 3-pole MCCB in this frame size — drops into the same cutout as other SENTRON 3VA breakers. No trip indicator, no voltage trigger — the front face stays clean.