At 45 °C it derates to 43.7 A, at 50 °C to 42.8 A, at 55 °C to 41.7 A, and at 60 °C to 41 A. That thermal curve is what you check when the breaker sits next to heat-producing loads or in a sealed enclosure.
Deployment context and approvals
IP20 with connected conductors, IP40 in the handle range — fine for enclosed panel mounting, not for washdown zones. Vibration resistance rated at 50 m/s² from 25 to 150 Hz and 60 m/s² at 35 Hz (4 s), so it holds up on machine-mounted sub-panels near rotating equipment. Suitability noted for mechanical engineering and industry. Halogen-free and silicon-free construction, sealable for tamper-evident applications. The product designation follows IEC 81346-2 and DIN EN 61346-2 function code F (protective device).