The Siemens 5SN6106-7CP is a 1-pole miniature circuit breaker from the SENTRON 5SN series, rated 400 V AC at 50 Hz with a breaking capacity of 6 kA according to EN 60898 and 30 kA according to IEC 60947-2. The 1-pole format and single modular width unit (18 mm wide) let it snap onto standard DIN rail, occupying one slot in the distribution board. Multi-phase operation at 440 V AC maximum; single-phase at 440 V AC. DC rating tops at 72 V. Solid conductor cross-section up to 35 mm².
The 18 mm width equals one modular unit, so it replaces any 1-pole MCB in the same footprint without rewiring the busbar. Compliance documentation for this SENTRON series includes CE marking per the Low Voltage Directive, with ratings verified to EN 60898 and IEC 60947-2. RoHS and REACH declarations are standard for Siemens industrial control products.