The Siemens 5SL6315-7 is a SENTRON miniature circuit breaker (MCB) — 3-pole, C-curve, rated 1.6 A, with a 6 kA breaking capacity per both EN 60898 and IEC 60947-2. It's rated for 400 V AC multi-phase operation, with a maximum of 440 V AC. That covers standard 230/400 V three-phase distribution panels common in residential and light commercial infrastructure. The DC rating tops out at 72 V, so this isn't the right pick for a 110 V DC battery bank.
It's sealable, halogen-free, and silicon-free — useful if the panel sits in a food plant or cleanroom where outgassing matters. Supplementary devices like shunt trips or auxiliary contacts can be added on the side.