The A9Z61491 is a 4-pole residual current circuit breaker (RCCB) from the Acti9 iID series, rated 100 A at 400 V AC 50 Hz with 30 mA earth-leakage sensitivity. The Type B-SI (Super Immunised) classification means this device handles smooth DC residual currents, pulsed DC, and high-frequency AC leakage without nuisance tripping, making it suitable for circuits with variable-speed drives, photovoltaic inverters, and lifts where conventional Type A or AC RCCBs would false-trip.
IP20 body, IP40 within a modular enclosure — suitable for indoor panel installation where washdown is not required. Tightening torque 3.5 N·m top or bottom.
Certified to IEC 61008-2-1, IEC/EN 62423, and EN 61008-2-1. Carries VDE, NF, IMQ, and KEMA quality labels — accepted across European and select international regulatory jurisdictions. Pollution degree 3, overvoltage category IV, rated insulation voltage 500 V. Impulse withstand 3 kA (8/20 µs) per EN/IEC 61008-1.
