The Siemens 5SY3002-7KL is a SENTRON miniature circuit breaker (MCB) rated 2 A with a C tripping characteristic, 1P+N poles, and a 4.5 kA breaking capacity at 230 V AC per EN 60898. The 18 mm width (one modular unit) and standard rail mounting mean it clips into any DIN-rail enclosure alongside other SENTRON or third-party devices.
Sourcing and lifecycle — current production, quoted to order
The mechanical service life is 4 000 switching cycles typical — adequate for a distribution circuit that operates infrequently, but not rated for frequent motor starting where a contactor would handle the switching.
Integration and compliance notes
Mounts in any position on standard rail. The neutral conductor is switched (product function neutral conductor switching = yes), so verify the neutral bus bar arrangement in your panel — this MCB does not leave the neutral continuously connected. The top and bottom terminals are not combined, meaning line and load each terminate separately. Touch protection is built in, which satisfies the finger-probe requirements for IPXXB panels.
