What it is and what it does
The Siemens 5SL6525-7 is a 1P+N miniature circuit breaker from the SENTRON series, rated 25 A with a C-curve trip characteristic. It breaks fault currents up to 6 kA at 230 V AC, per EN 60898 and IEC 60947-2, making it a standard choice for protecting lighting, socket, and small-appliance circuits in residential and light-commercial distribution boards.
Panel fit and integration
Two modular-width units (36 mm) snap onto DIN rail; depth is 76 mm, installation depth 70 mm. Mount in any position. IP20 with conductors connected — standard for enclosed panelboards. Sealable terminals and supplementary-device-ready design allow lockout and add-on shunt/aux contacts without rework.