The A9TAB2625: The 25 A rated current (In) is the continuous load the block is designed to pass; match it to the upstream MCB's rating for coordinated arc-fault protection. The 275 V ±5 V overvoltage threshold trips the internal mechanism when line voltage exceeds that window — useful for catching neutral-to-earth faults or sustained swells that can ignite an arc. Accuracy on voltage and current is ±2 %, power ±5 %, so the event-logging data is repeatable enough for post-incident analysis. The IP20 housing keeps fingers out but is not sealed; mount inside a closed panel.
Clip-on mounting on DIN rail, neutral on the left. The tunnel-type terminals accept 1–10 mm² flexible or 1–16 mm² rigid; strip length 14 mm, tighten to 2 N·m. The block connects to the MCB by screws — no separate busbar needed. Local signalling includes ON/OFF status, a fault-trip LED, and an arc-fault diagnostic LED for troubleshooting without a meter. Electrical durability is 10,000 cycles at 230 V AC per IEC 62606; mechanical durability is 20,000 cycles. The block records date/time and maintenance indicators, and is compatible with EcoStruxure Panel Server concentrators for remote monitoring.