What this MCB is and what the ratings mean
The Siemens SENTRON 5SL6132-6CC is a 1-pole miniature circuit breaker with a B tripping characteristic, rated 32 A and breaking 6 kA per EN 60898 at 230/400 V AC. The B-curve means it trips magnetically between 3 and 5 times rated current — so 96 A to 160 A for a short-circuit — which suits resistive and general-purpose loads in residential and light commercial infrastructure, not motor starting where the inrush would nuisance-trip a B-curve. The 6 kA breaking capacity is the maximum fault current it can safely interrupt at its rated voltage; match that to the prospective short-circuit current at the panel's point of installation. If the fault level exceeds 6 kA, step up to a 10 kA rated MCB like the SENTRON 5SL4 series.
Panel integration and mounting
This MCB occupies 1 modular width unit (18 mm) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm. The 18 mm width is standard for a single-pole MCB — it fits any 18 mm-spaced DIN-rail enclosure. Mounting position is unrestricted, which simplifies layout in crowded panels. The IP20 rating (with connected conductors) means it's protected against solid objects larger than 12 mm but not against moisture — keep it inside a rated enclosure. The sealable design allows the installer to lock the toggle position after commissioning, preventing unauthorized switching.
Electrical environment and compliance
Rated for overvoltage category III and pollution degree 2 — the standard for fixed-installation distribution boards. The operating frequency is 50/60 Hz. Maximum operating voltage is 250 V AC single-phase, 440 V AC multi-phase. It also carries a DC rating of 72 V maximum, though the primary application is AC. Power dissipation is 4.6 W per pole at rated current in hot state — factor that into enclosure thermal calculations if densely populating a row of MCBs. Vibration resistance is 50 m/s² at 25 to 150 Hz per IEC 60068-2-6, adequate for normal building installation but not for direct mounting on heavy machinery without additional damping. The part is halogen-free and silicon-free, which matters for clean-room or corrosive-environment specifications. Supplementary devices (auxiliary contacts, shunt trips, alarm switches) can be added on the side.