It's built for DC distribution in industrial panels — think battery banks, DC bus feeds, UPS output circuits, or traction power distribution where you need reliable overload and short-circuit protection on a DC network. The breaker carries a 100 kA Icu breaking capacity across multiple DC voltage and pole configurations — 100 kA at 24...125 V DC on 1 pole, 100 kA at 250 V DC on 1 pole, 100 kA at 500 V DC on 2 poles in series, and 100 kA at 750 V DC on 3 poles in series. That 100 kA rating at 500 V DC with 2 poles in series is the headline number for most industrial DC bus applications.
The 3-pole configuration with 3D protected poles means all three poles switch the DC line — no shared neutral pole. It's suitable for isolation (EN/IEC 60947-2), so you can use it as a visible-break disconnect point in a DC circuit. IP40 enclosure protection and IK07 impact resistance mean it's fine for general industrial panel use — no washdown rating, so keep it inside the cabinet. Mounting is backplate-fixed, horizontal or vertical, with front connections top and bottom. Mechanical durability is 5,000 cycles; electrical durability is 2,000 cycles at 750 V In/2 and 1,000 cycles at 750 V In. That's a maintenance-spare consideration — for high-cycle DC switching applications (frequent load disconnect), you'll want to track operations and plan replacement before the mechanical end-of-life.
Suitability for isolation is confirmed per that standard.