The Siemens SENTRON 5SY6330-7 is a 3-pole miniature circuit breaker with a C tripping characteristic, rated 6 kA breaking capacity per EN 60898-1 and 15 kA per IEC 60947-2. That dual rating means it covers residential/commercial panelboard duty at the lower figure and industrial feeder duty at the higher one — the 15 kA figure is the one that matters for plant-floor coordination studies. It's rated 400 V AC (440 V max multi-phase) and 60 V DC (72 V max), so it handles standard 400 V three-phase distribution and DC control circuits up to 60 V nominal.
Mounting and integration
Snaps onto DIN rail via the quick assembly system, occupies 3 modular width units (54 mm). Mounting position is any — no derating for horizontal or inverted orientation. Depth is 76 mm, installation depth 70 mm. Combined terminals top and bottom accept the same conductor sizes; supply cord can enter from either end. IP20 with connected conductors, so it's intended for enclosed panel use only.