Siemens 5SY6432-8 — SENTRON 4-Pole MCB, D Curve, 32 A
It is designed for AC circuits up to 400 V and provides a breaking capacity of 6 kA per EN 60898 and 15 kA per IEC 60947-2. The 4-pole configuration (4P) switches all phases; neutral conductor switching is not integrated, so a separate neutral bar or isolator is required if full isolation is needed.
The 72 mm width (4 width units) occupies four 18 mm module spaces. The IP20 rating applies with connected conductors, which is standard for enclosed panel installations.
Halogen-free and silicon-free construction. Operating temperature range spans -40 °C to 75 °C, with derating for humidity: max 95% RH at 55 °C, tapering to 35% at 75 °C. Sealable design allows lockout/tagout. Touch protection is integrated on the terminals.