The Siemens 5SY6110-7CC is a 1-pole miniature circuit breaker from the SENTRON family, carrying a C tripping characteristic and rated 6 kA breaking capacity per EN 60898 at 230/400 V AC. The single modular width (18 mm) fits one DIN-rail slot, so it packs into a crowded panel without stealing space from adjacent devices.
The 5 kA rating per UL 1077 and CSA C22.2 No. 235 means it also qualifies for North American supplementary-protection applications — useful if the panel ships to a dual-standard site. Temperature range spans -40 °C to 75 °C, with humidity derating above 55 °C: max 95% RH at 55 °C, dropping to 35% at 75 °C. That matters if the breaker lives near a steam line or a drying oven — the surrounding air's moisture load determines whether the internal arc-quenching path stays reliable. Vibration resistance per IEC 60068-2-6 (±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz) covers the usual pump and compressor panels; no special dampening needed. The 1-pole design switches the line only — no neutral pole, so it's for single-phase branch circuits where the neutral is common-bonded. Sealable means the toggle can be locked in the off position for lockout/tagout without an accessory padlock hasp.
Mounting position is any orientation, so it works in horizontal busbar drops or vertical panel layouts. The halogen-free and silicon-free construction avoids corrosive off-gassing in a sealed panel and won't contaminate sensitive contacts in relay or PLC cabinets nearby.