Siemens 5SY6432-7 — SENTRON 4-pole MCB, C-curve, 6/15 kA
The Siemens 5SY6432-7 is a SENTRON-series 4-pole miniature circuit breaker with C-curve tripping characteristic, rated 6 kA breaking capacity per EN 60898-1 and 15 kA per IEC 60947-2 — the higher figure governs industrial panel coordination where fault current can exceed the residential limit. Rated operating voltage 400 V AC (multi-phase) / 440 V AC single-phase, 50/60 Hz, with a DC rating of 60 V (max 72 V) at 15 kA per IEC 60947-2.
The dual rating matters for selectivity: 6 kA at 400 V AC per EN 60898-1 covers the residential/commercial branch circuit; 15 kA per IEC 60947-2 at 400 V AC (and 15 kA DC at 60 V) is the figure to use when coordinating with upstream molded-case breakers in an industrial panel. UL 1077 / CSA C22.2 No. 235 supplementary-protector listing at 5 kA covers North American acceptance.
Siemens lists the 5SY6432-7 as current-production (active lifecycle). Halogen-free and silicon-free construction, sealable per manufacturer spec. Compliance documentation covers IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, and CSA C22.2 No. 235 — RoHS/REACH declarations are standard with the SENTRON series.