The Siemens 5SJ6363-7 is a 3-pole SENTRON miniature circuit breaker from the 5SJ6 series, rated 63 A at 400 V AC with a C-curve trip characteristic and a 6 kA breaking capacity certified to both EN 60898 and IEC 60947-2. For DC circuits, the same breaker is rated 60 V maximum, so it works on 24 V or 48 V DC control buses but not on a 110 V DC battery bank. The mounting position is any.
Environmental and compliance specs
Vibration resistance is tested to IEC 60068-2-6 at 50 m/s² from 25 to 150 Hz and 60 m/s² from 10 to 150 Hz, so it holds up on machine-mounted panels near pumps or compressors. Mechanical service life is 20 000 switching cycles typical — not a wear-item concern for normal breaker duty.