The Siemens 5SL6632-6BB is a 3+N-pole miniature circuit breaker rated at 400 V with a 6 kA breaking capacity, B-curve trip characteristic, and 32 A current rating. This is the Italy version, which typically means it's configured for the Italian market's specific neutral and phase arrangement on a 3-phase+N system.
The B-curve trips at 3 to 5 times rated current (96–160 A for this 32 A unit), making it suitable for resistive and general-purpose loads with low inrush — lighting, heaters, socket outlets. The 3+N-pole configuration switches all three phases and the neutral, with the neutral pole switching but not protecting (no overcurrent trip on the neutral). This matches Italian and some other European distribution schemes where the neutral is switched for isolation but not fused.
Panel integration
Snap-on DIN rail mounting for standard 35 mm rail. The 3+N-pole width occupies 4 module spaces (72 mm at 18 mm per pole). Busbar comb connections are compatible with the Siemens 5SL series pin and fork busbars for incoming supply distribution.