The Siemens SENTRON 5SL6632-7YA is a 4-pole miniature circuit breaker (3P+N) with a C tripping characteristic, rated 32 A at 30 °C and 400 V AC. The C-curve suits it for mixed loads with moderate inrush. The neutral pole is switched (3P+N).
Panel fit and environmental range
Width is 72 mm (4 modular units), depth 76 mm, height 90 mm. Snaps onto standard DIN rail; mounting position is unrestricted. Pollution degree 2, overvoltage category III — standard for fixed-installation downstream of the main panel.
Derating and service life
At 45 °C it derates to 29.76 A; at 40 °C the listed value is 0.96 A (likely a data truncation — expect linear derating between 30 °C and 45 °C). Mechanical endurance is 10,000 switching cycles typical, which is standard for this class of MCB in distribution duty.