The 4.5 kA breaking capacity per EN 60898 covers most residential and light commercial panelboard duty; the 5 kA rating per IEC 60947-2 gives a bit more headroom for industrial distribution boards where fault currents run higher.
The 5SL3316-7 occupies 3 modular width units (54 mm total) on a DIN rail, with a 76 mm depth and 90 mm height — standard SENTRON footprint that drops into any 18 mm-pitch enclosure. Mounting position is unrestricted, so it works in vertical or horizontal busbar arrangements.
Accessories and auxiliary devices
The breaker accepts supplementary devices (shunt trip, undervoltage release, auxiliary contacts) — the terminal interface is standard across the SENTRON 5SL series.