The Siemens SENTRON 5SN4116-8CN is a 1-pole miniature circuit breaker (MCB) with a D tripping characteristic, rated 16 A and a breaking capacity of 10 kA per EN 60898.
D-curve and thermal derating
The D characteristic means the magnetic trip fires at 10 to 20 times rated current (160–320 A for this 16 A unit), so it suits loads with high inrush — small motors, solenoid banks, power supplies with large input caps. The thermal element follows a temperature-compensated bimetal: at 30 °C ambient it holds the full 16 A; at 40 °C it derates to 14.78 A; at 50 °C it drops to 13.45 A. If your panel runs hot, size the upstream protection accordingly.
Mounting position any, so vertical or horizontal busbar runs are fine. Touch-protected terminals are standard.
Halogen-free and silicon-free construction, sealable for panel-lockout tagging. Vibration resistance rated at 50 m/s² over 25–150 Hz per IEC 60068-2-6. The SENTRON series carries the usual Siemens compliance documentation (CE, UKCA, EAC). No UL or CSA listing is stated in the evidence.