The Siemens 5SL6101-7RC is a 1 A, 1-pole SENTRON miniature circuit breaker with a C tripping characteristic and a 7.5 kA breaking capacity rated per EN 60898 at 415 V AC. It occupies a single modular width (18 mm) on the DIN rail, making it a tight fit for residential or light commercial sub-distribution boards where branch-circuit overcurrent protection is needed for lighting or small loads.
What the ratings mean for fit
The C-curve (magnetic trip between 5× and 10× In) is standard for moderate inrush loads like small transformers, fluorescent ballasts, or motorized valves — not for high-surge motor starts (use D-curve) or purely resistive circuits (B-curve works). At 1 A rated current, this breaker protects a circuit drawing up to 1 A continuous; the 7.5 kA breaking capacity per EN 60898 means it can safely interrupt a fault current of up to 7.5 kA at 415 V AC without welding contacts or cascading damage upstream. That's adequate for most residential and light commercial service entrances where the prospective short-circuit current stays under 7.5 kA.
Panel integration and environment
Snaps onto a 35 mm DIN rail (EN 60715) in any mounting position. At 18 mm wide (1 MW), it leaves room for adjacent breakers or accessories. The IP20 rating with connected conductors means it's protected against finger contact but not washdown — keep it inside a closed panel or enclosure. Rated for ambient temperatures from -40 °C to 75 °C, so it handles unconditioned electrical rooms or outdoor enclosures in most climates. The 70 mm installation depth fits standard 100 mm deep consumer units.