The Siemens 5SY6016-6 is a SENTRON miniature circuit breaker rated 16 A with B-curve tripping characteristic, 6 kA breaking capacity, in a 1+N-pole (1 MW) configuration for 230 V AC single-phase circuits. The 18 mm width (1 modular unit) snaps onto standard DIN rail — any mounting position works, and the IP20 touch-protected terminals accept conductors with the top and bottom terminals separate.
The 16 A rating at 30 °C derates to 15.2 A at 40 °C and 14.88 A at 45 °C — plan the load accordingly if the panel runs warm. The B-curve (3–5× In magnetic trip) suits resistive and general-purpose loads — lighting, small appliances, control transformers — where inrush is modest. The 1+N-pole design switches both line and neutral, with neutral switching confirmed by the manufacturer.
Snaps onto standard DIN rail with 18 mm per pole — fits one modular unit.