B-curve 2-pole MCB, 10 kA breaking capacity across three standards
Its breaking capacity is rated 10 kA per EN 60898-1, 15 kA per IEC 60947-2, and 5 kA per UL 1077 / CSA C22.2 No.235 — so the same unit covers residential, industrial, and North American panel applications without needing a different part number. Rated 400 V AC (440 V max multi-phase or single-phase) and 60 V DC (72 V DC max), it fits standard 400 V three-phase distribution boards and 48 V DC control circuits common in industrial panels.
DIN-rail fit and environmental range
The 5SY4240-6 occupies 2 modular width units (36 mm) on a DIN rail, with a depth of 76 mm and height of 90 mm — the 70 mm installation depth leaves room for wiring behind the panel door. It mounts in any position and uses the quick-assembly system for snap-on installation; the terminals are sealable and accept combined top/bottom wiring for daisy-chaining. Ambient temperature range is -40 °C to 75 °C, with humidity limits of 95% at 55 °C, 55% at 70 °C, and 35% at 75 °C — suitable for unheated enclosures in cold climates or near process heat.
Active lifecycle and compliance package
It carries approvals to IEC / EN 60898-1, IEC / EN 60947-2, and UL 1077 / CSA C22.2 No.235, with IP20 protection (with connected conductors) and overvoltage category III, pollution degree 3 — the standard spec for fixed-installation distribution boards.