Siemens 5SL6515-7 — 1.6 A C-Curve MCB for Final Subcircuits
The Siemens 5SL6515-7 is a 1P+N miniature circuit breaker from the SENTRON 5SL series, rated 1.6 A with a C-curve tripping characteristic. The 1P+N configuration switches the line and switches the neutral — the neutral pole is not a protective device but isolates the circuit for safe downstream work. At 230 V AC single-phase, this is the MCB for a lighting or small-appliance branch in a distribution board.
The C-curve means magnetic trip occurs at 5–10× rated current — 8 to 16 A for this 1.6 A unit. That suits loads with moderate inrush like fluorescent ballasts, small transformers, or multiple socket outlets. The neutral pole is not overcurrent-protected but provides isolation when the breaker is off. Rated operational voltage is 230 V AC; the device also carries a 250 V single-phase rating and a 72 V DC maximum for the rare DC tap.
Panel Integration — Mounting and Environment
Pollution degree 2 covers normal non-conductive contamination with occasional condensation.