The Siemens Betagard 5SL7363-8RC is a 3-pole miniature circuit breaker with a D tripping characteristic, rated 63 A at 415 V AC. The 10 kA breaking capacity is certified per both EN 60898 (household / commercial standard) and IEC 60947-2 (industrial standard), so it can safely interrupt a fault current up to 10,000 A without welding its contacts or cascading damage upstream. At 63 A and 415 V, this is a main or heavy-feeder breaker in a 3-phase panel, not a branch-circuit device for lighting or general-purpose receptacles.
The 5SL7363-8RC occupies 3 modular width units (18 mm per unit, 54 mm total) and installs on a standard DIN rail. Mounting position is unrestricted — vertical, horizontal, or inverted — which simplifies layout in a crowded enclosure. The IP20 rating (with connected conductors) means it is protected against solid objects larger than 12.5 mm but not against moisture; it belongs inside a panel with a sealed door, not in a washdown zone.
The breaker is sealable, meaning the toggle can be locked in the off position with a padlock for lockout/tagout. Mechanical service life is 10,000 operating cycles typical; power loss per pole at rated current in hot state is 5.1 W — factor that into thermal calculations for a multi-breaker enclosure.