The Onesto KC3E-316 is a robust 3-pole circuit breaker engineered for reliable protection in both domestic and industrial electrical systems. Rated at 16 amperes with a 3kA breaking capacity, this DIN rail-mounted device operates across 240V and 415V supplies, conforming to IEC60947-2 standards for 50Hz applications. Its utilization category A classification ensures dependable performance in standard switching operations. The compact grey design integrates seamlessly into distribution boards, delivering consistent overcurrent protection while maintaining compliance with electrical safety regulations for demanding installations.