Siemens 5SY4232-6CC — 32 A B-Curve MCB, Current Production
The Siemens 5SY4232-6CC is a SENTRON miniature circuit breaker rated 32 A with a B-curve tripping characteristic, 2-pole construction, and a 10 kA breaking capacity per EN 60898 at 400 V AC. It also carries a 5 kA rating per UL 1077 and CSA C22.2 No. 235, so it qualifies for North American panel builds that accept supplementary protectors.
Panel Fit & Integration — 36 mm Wide, 2 Width Units
At 36 mm wide (2 width units on a standard DIN rail), the 5SY4232-6CC occupies two 18 mm slots in a distribution board. The combined terminal at top and bottom accepts the same conductor size, so wiring order doesn't matter.
Environmental & Compliance — Halogen-Free, Wide Temperature Range
Halogen-free and silicon-free construction — important for installations where off-gassing from a fault could damage nearby electronics or where silicone contamination affects contactors or drives.
DC Capability & Selectivity Notes
Rated for DC operation up to 72 V maximum — useful for control-circuit protection in 48 V or 60 V DC systems, but not a 125 V DC rail. In a selectivity study, the B-curve coordinates well with upstream SENTRON S-class or NH fuses for lighting and general distribution.