The Siemens SENTRON 5SL4313-7RC is a 3-pole miniature circuit breaker rated 13 A with a C tripping characteristic and a 10 kA breaking capacity at 415 V AC per EN 60898. It occupies a single modular width (18 mm) on the DIN rail, making it a standard panel-building component for residential and infrastructure distribution boards.
Rated 13 A at both 30 °C and 40 °C ambient, so no derating needed in a normal panel environment. The 3-pole design switches all three phases simultaneously, which is mandatory for three-phase circuits to prevent single-phasing downstream equipment. Rated voltage 415 V AC three-phase, 250 V AC single-phase, with a maximum 440 V AC multi-phase — fits standard 400/415 V grids. The DC rating tops out at 72 V, so it is not intended for DC traction or solar strings. Mechanical life of 10,000 switching cycles is typical for a residential-grade MCB — fine for occasional manual isolation, not for frequent switching duty (use a contactor for that).
Physical integration
Width is 18 mm (1 MW), depth 76 mm, height 90 mm, installation depth 70 mm. Mounting position any — no derating for horizontal or inverted mounting. Touch protection integrated on the terminals.