The Siemens SENTRON 5SL6116-6YA is a 1-pole miniature circuit breaker (MCB) with a B tripping characteristic, rated 16 A at 400 V AC multi-phase and 250 V AC single-phase, with a 6 kA breaking capacity according to EN 60898. It occupies a single modular width unit (18 mm) on the DIN rail, making it a direct drop-in for residential and infrastructure panelboards where a standard 1-pole MCB footprint is specified.
B-curve trip — what it means on the line
At 16 A, it protects a 3.5 kW resistive load on a 230 V single-phase leg or a 11 kW three-phase heater bank at 400 V.
Panel fit and environmental range
At 18 mm wide (1 MW), the 5SL6116-6YA snaps onto a standard DIN rail with any mounting position and an installation depth of 70 mm plus the 76 mm overall depth. The IP20 rating applies with the distribution board cover in place — fine inside a sealed panel, not for wet environments. It operates across -40 to 75 °C, so it survives unconditioned enclosures in northern or desert climates.
Halogen-free, silicon-free, sealable
The molding compound is halogen-free and silicon-free — relevant for clean-room adjacent panels, semiconductor fab sub-distribution, or any spec that bans outgassing of corrosive halogens under fault. The sealable design (tamper-proof cover with a lead seal) meets utility or municipal metering requirements where unauthorised access must be evident.