Siemens 5SN6125-7CP — 1-Pole MCB, C-Curve, Dual Breaking Capacity
Rated at 400 V AC (multi-phase, 50 Hz) and 72 V DC maximum, it fits standard European 400/230 V distribution panels. The single modular width unit (18 mm) and 76 mm depth match the standard DIN-rail envelope — drops straight into any SENTRON or compatible sub-distribution board. Terminal capacity accepts solid conductors up to 35 mm², sized for the feeder side of a sub-panel.
The 5SN6125-7CP carries a current lifecycle status. No official successor order code is on record, so the existing order code remains the correct BOM line item.
Panel Fit & Deployment
Snap-on DIN-rail mount, 18 mm width per pole, 76 mm depth — fits standard SENTRON enclosures and most third-party distribution boards. Installation depth is 70 mm, leaving 6 mm for wiring clearance behind the busbar.
Coordination & Selectivity
The 15 kA IEC 60947-2 rating provides selectivity headroom over downstream 6 kA rated MCBs in a typical two-level distribution.