Three-pole, with a TM110M thermal-magnetic release, it's rated 1 A continuous at 40 °C and delivers a breaking capacity of 187 kA at 240 V AC, 121 kA at 415 V, and 75.6 kA at 440 V.
That's a steep knee — at 480/277 V systems (common in North America) you'd interpolate between the 440 V and 500 V ratings, but the real takeaway is that this breaker is optimized for low-voltage high-fault applications.
Thermal-magnetic release and current derating
The TM110M release is a fixed thermal-magnetic type — no interchangeable rating plugs, no electronic adjustment. Rated current is 1 A across the entire ambient temperature range from 40 °C to 70 °C, which is unusual: most MCCBs derate above 40 °C, but this one holds flat at 1 A all the way to 70 °C. That means no compensation calculation needed if the panel runs hot. Power loss is 0.39 W maximum, negligible for panel thermal budgeting.
If the panel calls for UVR or remote trip, you need the accessory version.
Lifecycle status is current. No successor announced. This exact TM110M release and 1 A rating has no drop-in substitute without changing the release type.