Siemens 5SY4132-7CV — 32 A MCB, C-curve, 15 kA
The Siemens 5SY4132-7CV is a 1-pole miniature circuit breaker rated 32 A at AC with a C tripping characteristic and a breaking capacity of 15 kA per IEC 60947-2. Rated current is 32 A at 35 °C ambient, but the breaker derates as the panel warms: 28.45 A at 40 °C, 26.5 A at 45 °C, 24.4 A at 50 °C, and 22.11 A at 55 °C. If your panel runs hot, size the load to the derated value at your actual ambient — the 32 A nameplate is only good at 35 °C. Snaps onto DIN rail (18 mm width, 1 modular unit) and mounts in any position. IP20 with conductors connected — standard for enclosed distribution boards.
Vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz. That covers most industrial machinery environments without needing additional damping.