The A9Z51216 is a Schneider Electric Acti9 iID RCCB, 2-pole, rated 16 A at 230 V AC 50 Hz with 30 mA earth-leakage sensitivity. The Type B-EV classification per IEC 61008-2-1 and IEC/EN 62423 detects leakage profiles from EV chargers. Rated insulation voltage is 250 V; the overvoltage category is IV, meaning it's rated for installation at the origin of the low-voltage installation where transient overvoltages are highest. Pollution degree 3 confirms suitability for industrial environments with conductive or dry non-conductive pollution. The device clips onto a DIN rail, occupies 8 x 9 mm pitches (72 mm width), and is wired via double terminals accepting up to 35 mm² rigid or 25 mm² flexible conductors.
Deployment context: EV charging and general distribution
Schneider explicitly lists the device application as 'Electrical Vehicle charger'. In practice, this RCCB is installed as the outgoing group incomer or final-circuit protection in a distribution board feeding a wallbox or charging station. The Type B-EV characteristic is critical here: EV chargers generate smooth DC leakage currents from the onboard rectifier, which a standard Type A RCCB may not detect. This unit also carries the 8/20 µs impulse withstand rating of 3 kA per EN/IEC 61008-1, so it survives surge events on the supply side without nuisance tripping. The toggle provides ON/OFF indication and a trip indicator; a padlocking option is available for lockout/tagout during maintenance.
No successor or end-of-life notice is on record. For a BOM line specifying the A9Z51216, the fit is confirmed by the 16 A / 30 mA / Type B-EV / 2P / 230 V AC combination; there is no ambiguity in the order code.
Approvals and compliance documentation
Quality labels include VDE, NF, IMQ, and KEMA. Standards compliance is to IEC 61008-2-1 and IEC/EN 62423.