It carries a continuous rating of 63 A at 40 °C, with minimal thermal derating up to 70 °C (58 A at 70 °C), so it holds its full ampacity across typical enclosure ambient conditions. Breaking capacity is 52.5 kA at 240 V, 32 kA at 415 V, and 7.5 kA at 690 V — figures that cover most industrial service-entrance and feeder applications in North American and IEC systems.
Integration Notes
Width is 76.2 mm (3 in), depth 70 mm (2.76 in), height 130 mm (5.12 in) — fits standard 3-pole MCCB cutouts in 200 A and smaller panelboards. The box lug terminals accept copper or aluminum conductors up to the breaker's terminal rating (verify lug spec against wire gauge at installation). If the application needs remote tripping or GF protection, order the accessory module separately (Siemens 3VA9 series).
The storage minimum covers cold warehouse conditions; the operating minimum matters if the breaker must close under load at sub-freezing temperatures.