Schneider Electric A9R51240 Acti9 iID Residual Current Circuit Breaker 2P 40A Type A 30mA. The Schneider Electric A9R51240 is an Acti9 iID Residual Current Circuit Breaker (RCCB) providing essential earth-leakage protection for diverse electrical installations. This 2-pole device boasts a 40A rated current and a 30mA earth-leakage sensitivity, categorized as Type A for detecting both AC and pulsating DC residual currents. Operating at 50/60 Hz and rated for 230-240 V AC, it is perfectly suited for the electrical grids in Egypt and the Gulf. With instantaneous tripping and a robust 10 kA rated conditional short-circuit current, the A9R51240 ensures immediate safety response. Its voltage-independent residual current tripping technology guarantees reliable protection even under fluctuating voltage conditions. This RCCB is ideal for critical applications in industrial sectors such as cement production, oil and gas, water treatment, food and beverage, textile manufacturing, and general building services, safeguarding personnel and equipment. Featuring clip-on 35 mm DIN rail mounting and screw terminals supporting up to 35 mm² rigid cables, installation is straightforward.