It's built for distribution applications in solar and general low-voltage panels, with a 25 kA breaking capacity at 800 V AC (50/60 Hz) — that's the performance level B rating, meaning it can safely interrupt fault currents up to 25 kA at that voltage without upstream cascading. The 1250 V AC rated insulation voltage (Ui) gives headroom for high-voltage DC or AC circuits common in solar combiner boxes.
Thermal memory means the breaker remembers previous heating, so repeated overloads trip faster — useful for solar arrays with intermittent cloud-cover surges. Pollution degree 3 (IEC 60664-1) means it's rated for conductive pollution environments typical in industrial enclosures.
Mounting and integration notes
Fixed mount on a backplate, with front-facing screw terminals on both line and load sides. Connection pitch is 40 mm between poles. The breaker accepts horizontal or vertical mounting — no derating required for orientation.
The breaker is marked for isolation use per that standard.
