The Onesto KC6-KU-263 is a robust 63-amp, 2-pole miniature circuit breaker engineered for demanding electrical installations. Compliant with IEC60497-2 standards and rated for 50Hz operation, this DIN rail-mounted device delivers reliable protection across 240V and 415V systems. Its Category A utilization classification makes it ideal for both industrial and domestic applications, providing consistent performance in high-demand environments. The distinctive blue housing ensures easy identification on crowded distribution boards. Built to withstand rigorous operational demands, this MCB offers dependable circuit protection where safety and durability are non-negotiable.