What this 3200 A drawout breaker brings to a distribution board
The Schneider Electric EVS32H4MW5A is a 4-pole EasyPact EVS circuit breaker rated for 3200 A continuous at 40 °C, with a 65 kA Icu breaking capacity at 440 V AC (50/60 Hz) per IEC 60947-2. The drawout mounting (rails and base plate included) lets you rack the breaker out for maintenance or replacement without disturbing the bus connections, which is the standard practice for switchgear where downtime on a 3200 A feeder is measured in minutes, not hours. The EVS Trip System5A electronic trip unit handles overload (long-time), short-time, and instantaneous short-circuit protection, with a 20-minute thermal memory that remembers the heat profile before and after a trip — so if you reclose on a hot breaker, it won't let a second overload cook the cable. The digital display shows fault type (overload, short-circuit, internal fault) and measured current, which saves the panel guy from guessing what tripped it.
At 3200 A and 65 kA Icu, this breaker sits in the heavy end of the EasyPact EVS range — it's sized for main incomers or large bus risers, not branch feeders. The Category B utilization (IEC 60947-2) means it's designed for selectivity with downstream breakers: the short-time delay lets a fault ride through long enough for the nearest downstream device to clear, keeping the rest of the board live. Electrical durability is 5000 cycles at rated voltage without maintenance; mechanical durability is 20000 cycles with maintenance, 10000 without. That's enough for a main breaker that cycles once or twice a day, not a switching-duty device. The IP40 enclosure keeps tools and fingers out but isn't washdown-rated; it's for clean indoor switchgear.
Integration notes — drawout frame, connections, and isolation
Mounts on a rail or base plate with rear vertical or horizontal connections spaced at 115 mm pitch without a spreader. The drawout design means you need racking clearance above and below — 395 mm depth and 441 mm width give the panel builder the envelope to plan gland plates and bus bar takeoffs.