Overcurrent circuit breaker K60N-C50-3 C 50A 3-pole A9K02350

Overcurrent circuit breakers – reliable protection of electrical installations

This three-pole circuit breaker from the K60N series, with a rated current of 50A and C characteristic, is a key element ensuring safety in electrical installations. Designed for use in both residential and commercial buildings, it effectively protects circuits against overloads and short circuits. The C characteristic means that the circuit breaker reacts with a delay to short-term current surges, which is particularly important when connecting devices with motors or other elements generating inrush current. This minimizes the risk of unnecessary tripping of the circuit during normal operation.

This circuit breaker is distinguished by its solid construction and high quality workmanship, which guarantees long-lasting and trouble-free operation. It has a rated short-circuit breaking capacity of 6kA at 230V and 400V, which provides effective protection in the event of serious disturbances in the network. The IP20 degree of protection protects against accidental contact and the ingress of solid objects larger than 12.5 mm.

Construction and mounting

The K60N-C50-3 circuit breaker offers convenient mounting on a TH35 rail. It has double terminals from below – both rail and screw – which facilitates the connection of wires with a cross-section from 1 to 25 mm² (solid) or from 1 to 16 mm² (stranded). Serrated terminals further increase the certainty of the connection, eliminating the risk of loosening of the wires during operation. The tripping indicator ensures independence of the closing speed of the contacts from the speed of maneuvering the lever – this is important for ensuring smooth operation of the installation. The manufacturer allows the connection of two wires of the same cross-section to one terminal, which optimizes the installation process and reduces the need for additional connectors.

Application and compliance with standards

This circuit breaker finds wide application in electrical installations of residential, commercial and industrial buildings. It is ideal for protecting lighting circuits, socket circuits and electrical devices requiring protection against overloads and short circuits. It meets the requirements of EN 60898 standard, which confirms its safety and reliability. Designed to operate in ambient temperatures from -25°C to 70°C and at a frequency of 50/60 Hz. The rated impulse withstand voltage is as high as 4kV, which ensures resistance to overvoltages in the network.