Miniature Circuit Breaker (MCB) - IEC/EN 60947-2 / UL489 - Siemens (SENTRON Series - 5SJ4) - item #5SJ42047HG42 - 2-poles (2P) - rated current 4A - rated voltage 480Y/277Vac - C-curve - Short circuit current breaking capacity (Icu) 10kA - 2 modules width (2MW) - DIN-rail mounting (36mm width SPRING CLIP BROKE ON DIN RAIL MOUNT. Still fully functional.
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