The Siemens SENTRON 5SV3612-6KL is a 2-pole residual current circuit breaker (RCCB) rated 25 A continuous at 40 °C, with a 300 mA Type A tripping characteristic. It is instantaneous-acting (no intentional delay), designed for 50 Hz networks, and carries a 10 kA short-circuit current rating per IEC 61008-1.
Ratings that matter for the BOM line
At 65 °C it drops to 23.3 A, and at 70 °C to 17.6 A. Surge current resistance is rated at 1 kA, and the permissible I²t value is 58 000 A²·s, giving the device a solid withstand against transient overcurrents without nuisance tripping.
Fastens onto a DIN rail (REG) and requires 70 mm installation depth. The design is silicon-free, which matters for certain coating and potting processes.