What this MCB is and where it fits
The Siemens 5SY6532-7CC is a 2-pole (1P+N) miniature circuit breaker from the SENTRON family, with a C tripping characteristic and a 6 kA interrupting capacity certified to EN 60898. It is rated for 230 V AC single-phase operation and occupies 2 modular width units (36 mm) on a DIN rail, making it a direct fit for standard distribution boards and industrial control panels where neutral switching is required.
Key ratings and what they mean for the panel
The C-curve (tripping characteristic class C) means the breaker trips at 5 to 10 times rated current, suitable for moderate inrush loads like small motors, transformers, and lighting banks — a common choice in mechanical engineering and industrial applications per the product's stated suitability. The 6 kA breaking capacity per EN 60898 is the rated short-circuit capacity at 230 V AC; this is the value that governs selectivity coordination downstream. The same breaker also carries a 5 kA rating under UL 1077 and CSA C22.2 No.235, which certifies it for North American panel builds where those standards apply. Pollution degree 3 and overvoltage category III mean the 5SY6532-7CC is rated for the conductive environment inside an industrial enclosure — not just clean, dry residential panels. The IP20 rating (with connected conductors) is standard for protected distribution boards; the sealable feature allows the installer to lock the toggle position for tamper-proof isolation.
Mounting and integration details
The breaker snaps onto a DIN rail via the quick assembly system, accepts any mounting position, and fits a 70 mm installation depth. Combined terminals at top and bottom accept the supply cord from either side, and the neutral conductor is switched internally (1P+N design) — so no separate neutral link is needed downstream. At 36 mm wide (2 MW units) and 76 mm deep, it occupies the same footprint as a standard 2-pole MCB. The 3.3 W power loss per pole at rated current in hot operating state should be factored into the enclosure thermal budget, especially in densely populated panels.
Environmental and compliance notes
The breaker is halogen-free and silicon-free, which matters for outgassing-sensitive environments such as clean rooms or sealed enclosures near sensitive electronics. The operating temperature range spans -40 °C to 75 °C, with derating for humidity above 55 °C as specified. Vibration resistance per IEC 60068-2-6 is documented at ±1 mm from 5 to 25 Hz and 50 m/s² from 25 to 150 Hz.