The Siemens 5SL5125-7RC is a 1-pole DC miniature circuit breaker from the SENTRON 5SL series, rated for 25 A at 220 V DC with a C tripping characteristic and 10 kA breaking capacity.
The 18 mm width (1 width unit) fits tight panel layouts. Halogen-free and silicon-free construction. Sealable for tamper-evident installations. Touch protection is built in.
Rated for overvoltage category III. Suitability for operation listed as residential buildings and infrastructure. No neutral conductor switching function — this is a single-pole DC breaker. The DC voltage rating of 220 V DC maximum makes it a fit for telecom rectifier outputs, solar combiner boxes, or DC bus distribution in smaller installations.