The Siemens 5SL4210-8CC is a SENTRON miniature circuit breaker — 2-pole, D-curve, rated 10 A at 400 V AC with a 10 kA breaking capacity per EN 60898.
Snaps onto standard DIN rail. Mounting position is unrestricted, so it works in vertical or horizontal panel layouts.
At 40 °C it derates to 9.24 A, at 50 °C to 8.41 A, and at 55 °C to 7.96 A.
