That 8 A holds at 45 °C and 50 °C; derate to 7.04 A at 70 °C if the panel runs hot. Interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, dropping to 7.5 kA at 500 V and 690 V. That's a lot of fault current headroom for a 8 A frame — it'll clear a high-energy arc flash without the breaker venting into the enclosure.
TM110M release — what the li setting means
The overcurrent release is a TM110M — a thermal-magnetic unit with a fixed short-circuit pickup (li) at 128 A, both minimum and maximum. That's 16× the 8 A continuous rating, so it's a magnetic-only instantaneous trip at that level; the thermal bimetal handles overloads on the inverse-time curve.
Panel fit and physical constraints
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a compact 3-pole footprint. IP40 on the front face only. Insulation voltage rated 800 V. Power loss is 2.4 W max.
Lifecycle status is current — no discontinuation notice. It's a standard catalog item, not a last-time-buy or NRND part.