Breaking capacity is 15 kA per EN 60898 and 20 kA per IEC 60947-2, with a DC rating of 15 kA per IEC 60947-2. That covers most secondary distribution boards and sub-panels in industrial environments. IP20 with conductors connected — standard for panel-mount breakers.
Thermal derating and ambient range
Full 50 A rating holds at 35 °C ambient. At 45 °C it derates to 47 A, at 50 °C to 45.95 A, at 55 °C to 44.9 A, and at 60 °C to 43.8 A. If your panel runs hot, size the load or the breaker accordingly. Operating ambient range is -40 °C to 75 °C, with humidity limits: max 95% up to 55 °C, tapering to max 35% at 75 °C. That covers outdoor cabinets in cold climates and warm machine enclosures.
Sealable and touch-protected.