This is an ABB miniature circuit breaker (MCB), likely from the SH200 series based on the label [5.10, 5.14].It is a 3-pole (3P) device, designed for three-phase electrical systems [5.2, 5.8].The breaker features a C-type curve characteristic, typically used for moderate inrush loads like lighting or small motors [5.3, 5.9].The labeled rating appears to be 63 Amps, suitable for heavy-duty industrial or commercial applications [5.2, 5.13].