It protects 3 poles in a distribution panel and is designed for both AC and DC networks. It is not for motor starting where higher inrush would nuisance-trip a B-curve device.
Mounts on DIN rail (mounting support: DIN rail). The 54 mm width occupies 6 x 9 mm pitches on the rail — plan panel space accordingly. IP20 finger-safe terminals accept double connections: 1–25 mm² rigid or 1–16 mm² flexible.
At 12–133 V AC it interrupts 42 kA Icu; at 220–240 V AC, 30 kA Icu; at 380–415 V AC, 15 kA Icu; at 440 V AC, 10 kA Icu. The Icn per 60898-1 is 15 kA at 400 V AC. These ratings mean the breaker can clear high fault currents without welding contacts or exploding the arc chamber — critical for panel coordination studies. The 500 V AC rated insulation voltage (Ui) matches the insulation coordination for 400 V systems with overvoltage category IV.
