At 40 °C the continuous rating derates to 9.25 A, at 50 °C to 8.43 A, and at 60 °C to 7.52 A — a critical derating curve for sealed enclosures or high-ambient railway cabinets.
Railway certification and environmental range
This MCB is explicitly designed for railway applications and carries vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz. Ambient temperature range spans -40 °C to 75 °C, with humidity influence capped at 95% up to 55 °C, 55% up to 70 °C, and 35% at 75 °C. The lifecycle status is current production.
Width is 36 mm (2 modular units), depth 76 mm, height 90 mm, installation depth 70 mm. Fastens via the quick assembly system in any mounting position. Combined top and bottom terminals simplify daisy-chaining. Halogen-free and silicon-free construction.