The Siemens SENTRON 5SL3610-7MB is a 4-pole miniature circuit breaker (3P+N) with a C-tripping characteristic, rated at 10 A and a breaking capacity of 4.5 kA per EN 60898 and IEC 60947-2. It's designed for residential and infrastructure panels where the C-curve handles moderate inrush from lighting or small motor loads without nuisance tripping.
The 10 A rating at 30 °C is the continuous current the breaker carries in a 30 °C ambient; at 40 °C it derates to 9.3 A, and at 45 °C to 9 A (–). The C-curve means the magnetic trip fires at 5 to 10 times rated current — so for a 10 A breaker, instantaneous trip occurs between 50 A and 100 A. That's a good match for circuits with transformer inrush or motor starting, but if you're protecting electronics or long cable runs, a B-curve would trip faster on lower faults. Rated voltage is 400 V AC for multi-phase operation, with a maximum of 440 V AC. The DC rating tops out at 72 V — so this is an AC breaker; don't use it on a DC bus above 72 V without verifying the manufacturer's DC derating. Mechanical service life is 20,000 operating cycles typical.
The neutral conductor is switched internally, so you land the incoming 3-phase plus neutral on the top terminals and the outgoing circuit on the bottom. Touch protection is built in.