What this 4-pole MCB delivers
Snaps onto standard DIN rail or accepts screw fixing, with any mounting position allowed — no derating needed for horizontal or inverted orientation. The 92 mm installation depth and 6 modular width units (roughly 108 mm) mean it occupies three times the space of a single-pole unit, so plan the DIN-rail layout accordingly.
Rated for 20 000 mechanical switching cycles, this breaker outlasts many residential-grade MCBs (typically 10 000 cycles) — a practical advantage in applications with frequent manual switching or automated load shedding. Survives shock to 150 m/s² at 11 ms half-sine and vibration to 50 m/s² at 25–150 Hz, per IEC 60068-2-27 and -6, so it holds up on vibrating machinery or near conveyor drives. The -40 °C to +75 °C operating range covers cold storage and hot panel interiors, though periodic ambient peaks to +55 °C with 95% humidity are the design reference. Halogen-free and silicon-free construction reduces toxic smoke in a fire and avoids silicone outgassing that can foul relay contacts or sensitive electronics in the same enclosure.