The Siemens 5SL6414-8CC is a 4-pole miniature circuit breaker rated 400 V with a 6 kA breaking capacity, D-curve trip characteristic, and a 0.3 A rated current. It belongs to the Basic Devices product family within the 5SL series.
Snap-on DIN rail mounting for standard 35 mm rail in distribution boards or sub-panels. The 4-pole format occupies four modular width units (4 MW, typically 72 mm). The D-curve at 0.3 A is an uncommon rating — verify coordination with the downstream load and upstream protective device, as the low ampacity combined with the high-trip curve narrows the selectivity window.
