The Siemens 5SL6310-7CC is a SENTRON miniature circuit breaker (MCB) with a C-curve trip characteristic, rated 10 A at 400 V AC and a 6 kA breaking capacity per EN 60898. It's a 3-pole unit in a 54 mm wide housing (3 modular width units), designed for snap-on DIN rail mounting in distribution boards.
At 40 °C it derates to 9.43 A, at 45 °C to 9.13 A, at 50 °C to 8.82 A, and at 55 °C to 8.51 A.
Snap-on DIN rail mount, any position. The housing is 54 mm wide (3 modular units), 90 mm tall, 76 mm deep with an installation depth of 70 mm. Pollution degree 2, overvoltage category III. Sealable, halogen-free, silicon-free. Supplementary devices (shunt trips, auxiliary contacts) can be installed on the side.
Rated for -40 °C to 75 °C ambient. Energy limitation class 3. The 6 kA breaking capacity is per EN 60898; the breaker also carries a 440 V AC maximum multi-phase operating voltage. For DC circuits, the maximum DC rated voltage is 72 V.