The SENTRON 5SV3342-6KK12 is a 4-pole residual current circuit breaker (RCCB) rated for 25 A at 400 V AC, 50 Hz. It trips on a 30 mA residual current, Type A (pulsating DC and AC), and is instantaneous — no intentional delay. That 30 mA threshold covers the standard personnel-protection requirement in most IEC-based distribution boards.
Ratings that matter on site
Short-circuit capacity is 10 kA, with a let-through current of 5 200 A and an I²t limit of 58 000 A²·s. Surge current resistance is 1 kA (0.8 kA per the standard). Mounts on DIN rail (REG), any position, 4 module-widths wide. Depth is 70 mm, which is standard for this class — fits most IP20 distribution boards with connected conductors. Silicon-free construction, so it's safe for use in coating or potting lines where silicone contamination is a concern.