Schneider Electric A9F78420 IC60N Miniature Circuit Breaker 4P 20A B-Curve. The Schneider Electric A9F78420 is a robust Acti9 iC60N Miniature Circuit Breaker (MCB) designed for reliable protection in final distribution circuits. This 4-pole, 20 Ampere MCB features a B-curve trip characteristic, offering thermal-magnetic protection against overcurrents and short circuits for both AC and DC networks. It boasts impressive breaking capacities of 6000 A conforming to IEC/EN 60898-1 at 400 V AC 50/60 Hz, and 10 kA conforming to IEC/EN 60947-2 at 380-415 V AC 50/60 Hz. With a wide operational voltage range spanning 12-440 V AC and up to 250 V DC, and full suitability for isolation, the A9F78420 is a versatile solution. Its clip-on, 35 mm DIN rail mounting ensures easy installation. This Schneider Electric MCB is ideal for critical electrical infrastructure in Egyptian and Gulf industries such as oil and gas, cement production, water treatment, building services, and food and beverage processing, providing essential circuit protection and operational continuity.