The Z trip curve means it's designed for sensitive electronic loads where even short-duration overcurrents need fast interruption — think PLC power supplies, control transformers, or instrumentation circuits that can't ride out the delayed trip of a B or C curve. The 10 kA breaking capacity at 230/400 V per IEC 60898 means this breaker can safely interrupt a fault current up to 10,000 A without welding its contacts or failing catastrophically. If your site's fault level is higher, you'd step up to a 15 kA or 25 kA rated device.
Snap-on DIN rail mounting for 35 mm rail per EN 60715. The 1-pole width is one modular unit (17.5 mm), so it occupies a single slot in a distribution board or sub-panel. Terminal capacity accepts 1–25 mm² copper conductors, solid or stranded.