Rated 125 A at 40 °C ambient, it carries a 85 kA Icu breaking capacity at 220...240 V AC and 36 kA at 380...415 V AC — that's the kind of headroom that lets you coordinate downstream without worrying about the main tripping first on a hard fault. The toggle switch gives positive contact indication — no guessing whether the contacts are open.
Breaking capacity — what the ratings mean
The H breaking capacity code means this breaker is the high-interrupting version of the EZC250 frame. At 220...240 V AC it clears 85 kA — that's a full short-circuit current at a typical North American 240 V service entrance. At 440 V AC it still handles 25 kA, enough for most industrial distribution boards. On DC circuits, it's rated 30 kA Icu at 125 V DC (single pole) and 30 kA at 250 V DC (two poles in series). That matters if you're feeding a DC bus or battery bank — the same breaker works on both AC and DC networks without derating the interrupting rating.
Fixed mounting on a backplate with front connections top and bottom. No DIN rail — this is a bolt-on breaker sized for a distribution panel or switchboard. IP20 finger-safe terminals, pollution degree 3 rated — it's meant for a clean-ish panel interior, not outdoor exposure. The IK07 impact rating means it can take a bump during installation without cracking the case.