The recloser logic is the defining feature: after a fault trip, it waits 10 seconds, then attempts a reclose. If the insulation fault persists, it stops the restart cycle after three consecutive attempts, with a minimum 180-second interval between closings. This handles transient faults — a lightning strike or a momentary cable touch — without a site visit, but locks out on a hard fault.
The 25 A rating matches a 4 mm² copper feeder on a 230 V single-phase supply, typical for a lighting or general-purpose socket-outlet submain. The device is rated for 500 V insulation voltage (Ui) and complies with EN 50557, the standard for automatic reclosing devices for RCCBs. The 8/20 µs wave immunity rating of 250 A means it will not nuisance-trip on common surge events.
The fixed mounting mode and 54 mm width (9 mm pitch × 6) mean it occupies six modular spaces in a consumer unit or distribution board. Depth is 82 mm, height 106 mm — check enclosure depth before specifying, especially in shallow flush-mount boards. Tightening torque is 3 N·m; strip length 12 mm. The toggle control provides manual on/off and a test function that operates above 100 V.