What the 32 A B-curve rating means for your panel
The 5SJ6232-6 is a 2-pole SENTRON miniature circuit breaker rated 32 A at 400 V AC with a B-curve tripping characteristic. The B-curve (3–5 × In) means it trips between 96 A and 160 A under short-circuit conditions — designed for resistive or general-purpose loads where inrush is modest, not for motor-starting or transformer-heavy circuits. The 6 kA breaking capacity per EN 60898 (and IEC 60947-2) tells you it safely interrupts a fault up to that level without upstream damage; verify that the prospective short-circuit current at your panel's point of installation does not exceed 6 kA.
Panel integration and wiring
Mounts on standard DIN rail in any position — no orientation restrictions. Occupies 2 width units (36 mm) with a 70 mm installation depth, so it fits a standard distribution board without extra gland-plate clearance. Terminals accept solid or stranded conductors from 0.75 mm² up to 25 mm², which covers most downstream load wiring for a 32 A circuit. The housing is sealable, halogen-free, and silicon-free — relevant for clean-room or low-outgassing environments where material emission specs are under change control.
Environmental and compliance notes
Rated ambient temperature range is -20 to +45 °C, with storage from -40 to +75 °C. The IP20 protection class (with connected conductors) is standard for enclosed distribution boards — not suitable for wet or washdown zones without an outer enclosure. Overvoltage category III and pollution degree 2 are typical for fixed-installation branch circuits. Vibration resistance per IEC 60068-2-6 is 50 m/s² at 25–150 Hz and 60 m/s² at 10–150 Hz, which covers normal industrial panel vibration but not severe rotating-machinery coupling.
