The Siemens SENTRON 5SY3010-7KL is a compact miniature circuit breaker (MCB) in a 1-pole+N configuration, meaning it switches both the line and neutral conductors in a single 18 mm-wide module. Breaking capacity is 4.5 kA at 230 V AC per EN 60898 — sufficient for most domestic and commercial sub-distribution boards where the prospective short-circuit current stays under that threshold. Snaps onto standard DIN rail, accepts any mounting position, and carries an IP20 rating with conductors connected — standard for enclosed panel use.
Panel Fit & Integration
Occupies a single modular width unit (18 mm) on the DIN rail, with a depth of 76 mm and an installation depth of 70 mm — leaves clearance for wiring behind the busbar. The neutral conductor is switched internally, so no external neutral link is needed; the terminal design accepts supply from either end. Touch protection is built in, meeting the finger-probe requirements of the standard.