It's 25 mm wide — one pole wide — so it slots into a backplate-mounted assembly without eating up rail space. The 25 kA Icu at 240 V AC means it'll clear a substantial fault on a 240 V distribution bus without upstream coordination headaches; at 415 V AC it's 5 kA Icu, so watch the system SCCR if you're using it on a 400 V line. It's a Category A breaker — no intentional short-time delay, so it's meant for instant trip on fault, not selective coordination with downstream devices.
The breaking capacity code 'H' tells you this is the high-interrupting version of the EZC100 frame. At 125 V DC it's 10 kA Icu, which covers battery-bank and UPS output breakers in telecom/DC plant applications. The IP20 finger-safe terminals and IK07 impact resistance handle the usual enclosure-installation abuse. Mechanical durability of 13,000 cycles — that's the expected life of the mechanism under no-load switching. For a distribution breaker that cycles a few times a year in normal service, that's effectively a lifetime. If you're switching it daily as a disconnect, you'll want to check the electrical endurance curve (not in this spec set) for the actual load current.
Mounting & connections
Fixed mount on a backplate — no DIN rail adapter on this one. The 25 mm pole pitch matches standard panelboard busbar spacing. Front connections both top and bottom, so busbar runs and load cables land on the same face. Connection pitch is 25 mm, which aligns with standard distribution lug kits. Toggle control with positive contact indication — you can see the contact position through the front window, not just the handle position. That matters for lockout/tagout verification.