What the ratings mean for fit
The Siemens 5SY7532-7 is a 2-pole (1P+N) SENTRON miniature circuit breaker with a C tripping characteristic, rated 32 A at 35 °C on AC supply. The C-curve means it trips between 5 and 10 times rated current — the standard choice for moderate inrush loads like small motors, transformers, and lighting banks in industrial control panels. The 15 kA breaking capacity per EN 60898 covers most sub-distribution applications; the 25 kA rating per IEC 60947-2 gives headroom for higher-fault installations where the upstream transformer is close. The 32 A rating is the maximum continuous current at 35 °C; above that, derate per the table: 29.66 A at 45 °C, 28.86 A at 50 °C, 28 A at 55 °C, 27.14 A at 60 °C. If your panel ambient runs warm, size up one frame. The 2-module-width body (36 mm) snaps onto standard DIN rail via the quick assembly system; mounting position is any, so vertical or horizontal busbars work. IP20 with connected conductors means it's protected against finger contact once wired — standard for enclosed panel installation, not for wet or dusty environments. Ambient range from -40 °C to 75 °C covers most indoor and outdoor cabinet conditions; the humidity limits (95% up to 55 °C, then derated) are typical for non-condensing environments.
Panel integration notes
Combined terminals top and bottom accept the same wire range; the sealable cover (yes) allows the panel builder to lock out adjustment after commissioning. Pollution degree 3 and overvoltage category III suit fixed industrial installations where transient overvoltages are controlled by upstream SPDs. The part is halogen-free and silicon-free — relevant for clean-room or semiconductor-adjacent panels where outgassing matters.