The Siemens 5SY6032-6KL is a 1P+N miniature circuit breaker from the SENTRON family, rated 32 A with a B tripping characteristic and a 6 kA breaking capacity per EN 60898 at 230 V AC. It switches both the phase and neutral, with the neutral on the left side of the unit. Mounts on standard DIN rail, takes up one width unit (18 mm), and can be installed in any position. The screw terminals accept solid or stranded copper from 0.75 mm² up to 16 mm², with a recommended tightening torque of 2 to 2.5 N·m. That's enough wire range for a 32 A circuit feeding a submains or a heavy appliance feed.
If you're dealing with higher inrush (transformers, larger motors), a C-curve sibling would be the better call; this one is for the standard final-circuit duty. Energy limiting class 3 means it restricts let-through energy well during a fault, which helps with downstream coordination and reduces arc-flash stress on the conductors. The overvoltage category III rating confirms it's intended for fixed-installation distribution boards, not for equipment-level protection.
Installation notes from the field
That matters when you're laying out a distribution board: the feed order is fixed, and you can't swap phase and neutral positions. Touch protection is built into the terminals per the product feature. Halogen-free and silicon-free construction — no problematic outgassing in confined spaces or near sensitive contacts. IP20 rating applies with conductors connected, so the panel itself provides the environmental seal.