The Siemens 5SL6216-6 is a SENTRON miniature circuit breaker, 2-pole, rated 16 A with B-curve tripping characteristic and a 6 kA breaking capacity at 400 V AC per both EN 60898 and IEC 60947-2. That 6 kA rating means it can safely interrupt fault currents up to that level without upstream devices needing to clear the fault — a standard specification for residential and light commercial distribution boards where the prospective short-circuit current stays under 6 kA.
Snaps onto standard 35 mm DIN rail, occupies 2 modular width units (36 mm wide), with a 70 mm installation depth and 76 mm overall depth — fits flush in a standard distribution board with enough clearance for wiring. Mounting position is any orientation, which simplifies panel layout when the board is side-mounted or inverted. The IP20 rating (with connected conductors) means it's protected against finger contact once wired, but not against dripping water — standard for indoor enclosures.
Sealable, halogen-free, and silicon-free construction — relevant for clean-room or sensitive-environment installations where outgassing or tamper-sealing is specified. Degree of pollution 2 and overvoltage category III cover the typical non-conductive, dry indoor environment of a residential or infrastructure panel. Energy limitation class 3 means the breaker limits let-through energy to a level that protects downstream wiring under fault conditions.
Operates across -40 °C to 75 °C ambient, which covers unheated utility rooms and outdoor-adjacent enclosures. Mechanical service life is 10 000 operating cycles typical — not a high-cycle part for frequent switching, but adequate for its role as an overcurrent protection device in a distribution board. Power loss per pole is 2 W at rated current in hot state — useful for thermal budget calculations in a densely packed enclosure.
Accepts plug-in supplementary devices (auxiliary switches, shunt trips, alarm contacts) for remote status monitoring or emergency shutdown circuits — the 5SL6 platform shares that accessory ecosystem with the rest of the SENTRON 5SL series.