The Siemens 5SL4416-7CC is a SENTRON 5SL4 series miniature circuit breaker — 4-pole, C-curve, rated 16 A at 400 V AC, with a 10 kA breaking capacity per EN 60898. That 10 kA figure is the short-circuit current it can safely interrupt under fault conditions, which governs whether it coordinates with upstream protective devices in a distribution board.
At 72 mm wide (4 modular width units), it occupies four standard 18 mm DIN-rail slots. The IP20 rating applies only with connected conductors, so the busbar and wiring must be in place before the enclosure is considered finger-safe.
Pollution degree 2 (non-conductive deposits only) and overvoltage category III cover fixed-installation distribution boards. Vibration resistance is 50 m/s² over 25 to 150 Hz per IEC 60068-2-6.