The 5SL6304-7: The 4 A C-curve is the key spec: it trips magnetically between 5× and 10× rated current (20–40 A), which is the standard choice for general-purpose lighting and small motor circuits where moderate inrush is expected. The 10,000 mechanical operating cycles typical life is fine for a distribution MCB that sees infrequent switching.
Snap-on DIN rail mount, any position. Three modular width units (54 mm) means it occupies three standard 18 mm slots on the rail. Sealable, halogen-free, silicon-free — relevant for clean-room or food-processing panels where outgassing or contamination is a concern. Accepts auxiliary switches and shunt trips (product extension installable supplementary devices = Yes) for remote status or emergency-off circuits.