It's rated for 400 V AC at 50 Hz and carries a 6 kA breaking capacity per EN 60898, with a higher 30 kA rating per IEC 60947-2 — the latter is the one that governs its use in industrial panels where fault current can exceed domestic levels.
The 72 V DC maximum rating covers control-circuit applications where the breaker protects a DC bus or solenoid supply. The 440 V AC maximum for multi-phase operation matches standard 400 V three-phase systems with tolerance for line-to-line variation. Terminals accept solid conductors up to 35 mm². Mechanical life: 10 000 operating cycles.
Deployment context
Installation depth: 70 mm. Three modular width units occupy 54 mm of rail space.