The Siemens SENTRON 5SL6104-7RC is a 1-pole miniature circuit breaker rated for 4 A with a C tripping characteristic, meaning it's designed for moderate inrush loads like small motor starters or lighting banks where the startup surge is higher than a resistive load but still within a standard distribution panel. It breaks fault currents up to 7.5 kA per EN 60898 at 415 V AC, which covers the majority of residential and light commercial service-entrance capacities.
Fit and ratings
Rated for single-phase operation up to 250 V AC and multi-phase up to 440 V AC at 50/60 Hz, so it works on both 230/400 V and 240/415 V networks. The 7.5 kA breaking capacity at 415 V per EN 60898 is the standard for domestic and light commercial final circuits — it's not a high-fault industrial breaker, so don't spec it where the prospective short-circuit current exceeds that figure. The C-curve (5-10x In magnetic trip) handles the typical motor and fluorescent lighting inrush without nuisance tripping.
Panel integration
Snap-on mounting to DIN rail (35 mm), 18 mm width per pole, 76 mm depth plus 70 mm installation depth — standard for the SENTRON 5SL series. The sealable design lets you lock the handle position after commissioning, which is useful for rental or multi-tenant sub-meters where you want to prevent unauthorized switching.