The C characteristic handles moderate inrush — typical for motor starters, transformers, or lighting banks — without nuisance tripping on start-up.
The 4 A rating holds at 35 °C ambient. Above that, derate linearly: 3.76 A at 40 °C, 3.63 A at 45 °C, 3.5 A at 50 °C, 3.36 A at 55 °C, and 3.22 A at 60 °C (–). In a sealed, uncooled enclosure at 50 °C, expect the breaker to carry 3.5 A continuous — plan your load margin accordingly. The energy limitation class is 3, which means it lets through less let-through energy (I²t) than class 1 or 2 breakers, reducing stress on downstream components during a fault.
Panel integration
Snaps onto DIN rail via the quick assembly system and occupies 2 modular width units — 36 mm wide, 90 mm tall, 76 mm deep, with an installation depth of 70 mm. Mountable in any position.