The 3-pole frame carries a 330 kA interrupting capacity at 240 V, dropping to 242 kA at 415 V and 187 kA at 500 V; at 690 V it still holds 3.7 kA.
For a panel builder, it means you can pack this breaker next to other heat sources and still count on the full 63 A without oversizing the frame. That is high for a 63 A frame — it tells you the internal arc chamber and contact geometry are built for severe fault duty, likely a stored-energy mechanism. In practice, it gives selectivity headroom downstream; you can coordinate with smaller branch breakers and still clear a bolted fault at the bus without the main tripping. For motor protection, that prevents single-phasing damage — a common failure mode on screw compressors and conveyors.
Dimensions are 86 mm deep, 105 mm wide, 181 mm tall — a standard 3-pole MCCB footprint that fits Siemens SENTRON 3VA2 distribution blocks and busbar systems. The 105 mm width matches the typical 3-pole modular spacing on DIN-rail or panel-mount adapters. No trip indicator and no voltage trigger; the undervoltage release is the only auxiliary release fitted.