The Onesto KC3E-240 is a dual-pole miniature circuit breaker engineered for reliable overcurrent protection in both residential and commercial installations. Rated at 40 amperes with a 3kA breaking capacity, this DIN rail-mounted device operates across 240V single-phase and 415V three-phase systems. Compliant with IEC60947-2 standards and optimized for 50Hz applications, it delivers utilization category A performance. Its robust grey construction ensures durability in demanding electrical environments while maintaining precise trip characteristics for equipment and personnel safety.
