The EZC250H3250 is a 3-pole EasyPact EZC250H circuit breaker from Schneider Electric, rated 250 A at 40 °C ambient with a thermal-magnetic TM-D trip unit. The 250 A trip rating at 50 °C means the breaker holds full rated current in a warm panel — useful when the enclosure is stacked with other heat-generating devices. The breaking capacity varies by voltage: 85 kA Icu at 240 V AC, 36 kA at 400 V AC, and 10 kA at 550 V AC. At 400 V, that 36 kA Icu is typical for a distribution board downstream of a transformer; the 10 kA at 550 V covers industrial line-to-line supplies where fault current is lower. The 690 V rated insulation voltage and 550 V AC / 250 V DC operational voltage confirm it handles standard three-phase 480 V and 600 V class systems, plus DC circuits for battery or UPS tie-ins. The 3t protected poles with no neutral protection means it's a straight three-pole breaker for a three-phase load — no switched neutral.
Deployment context
Fixed mounting on a backplate with front connections top and bottom — this breaker bolts into a panel, not onto a DIN rail. The toggle control gives positive contact indication so an operator can visually confirm the breaker is open or closed without metering.
Designed to EN/IEC 60947-2 and GB/T 14048.2 — the global standard for low-voltage molded-case circuit breakers. IK07 impact resistance handles light tool drops during panel assembly. Mechanical durability of 10,000 cycles is typical for a distribution breaker — not for frequent switching, but fine for protection duty where it operates a few times a year.