The Onesto Circuit Breaker KC3E-140 is a single-pole miniature circuit breaker engineered for reliable overcurrent protection in domestic and industrial installations. Rated at 40A with a 3KA breaking capacity, this device complies with IEC60947-2 standards and operates across 240V/415V, 50Hz supply systems. Its utilization category A designation ensures optimal performance in standard AC applications. The compact DIN rail design facilitates straightforward installation in distribution boards and control panels, delivering dependable circuit protection where it matters most.
