The Schneider Electric EVS40H3MW5A is a 4000 A drawout circuit breaker from the EasyPact EVS40H series, built for main distribution duty. It carries a 65 kA Icu breaking capacity at 220...440 V AC and 50 kA Icu at 690 V AC, both per IEC 60947-2 — so it handles high-fault utility feeds without cascading upstream. The 3-pole design with an electronic EVS Trip System5A unit gives you overload, instantaneous short-circuit, and short-time short-circuit protection, plus a 20-minute thermal memory that remembers the heat profile before and after a trip. That matters for coordination: it keeps downstream devices from nuisance-tripping on a temporary overload.
The drawout mounting lets you rack the breaker out for safe maintenance without killing power to the bus; the rear connection bolts directly to the bus bars. IP40 keeps tools and fingers out but expects a clean indoor switchroom.
Built to IEC 60947-2 for circuit breakers, with suitability for isolation — so it doubles as a visible-break disconnect when racked out. The utilisation category B means it's designed for selectivity with downstream breakers, not just as a standalone device. Electrical durability is 5000 cycles at rated voltage without maintenance; mechanical durability is 20000 cycles with maintenance, 10000 without. That 25 ms maximum breaking time keeps fault energy low enough to protect downstream gear.