Circuit breaker K60N-C63-3 C 63A 3-pole A9K02363

Overcurrent circuit breaker for electrical installation protection

This three-pole Acti9 K60N series overcurrent circuit breaker, with a rated current of 63A and C characteristic, is a reliable solution for protecting electrical circuits in residential buildings and similar facilities. It provides effective protection against the effects of overloads and short circuits, guaranteeing the safety of installation operation. The C characteristic allows it to react more slowly to short current surges, making it well-suited for starting devices with a motor.

Functionality and installation

The K60N-C63-3 circuit breaker is distinguished by its easy installation on a standard TH35/DIN rail. It has double terminals at the bottom – both rail and screw – which facilitates connection of the wires. Serrated terminals increase connection reliability, minimizing the risk of loosening of the wires during operation. A snap-action contact ensures fast closing of the contacts regardless of the speed of lever operation, which translates into efficient device operation. The ability to connect two wires of the same cross-section to one terminal simplifies installation and saves space in the switchgear.

Technical parameters and compliance with standards

The circuit breaker has a rated short-circuit breaking capacity (Icn) of 6kA at both 230V and 400V, which ensures effective protection in the event of a short circuit. The rated insulation voltage Ui is 440V, and the rated voltage is 400V. The device meets the requirements of PN-EN 60898-1 standard and has a protection degree of IP20. It is adapted to work in a wide range of ambient temperatures, from -25°C to +70°C. It accepts cross-sections of solid wires from 1 to 25 mm² and stranded wires from 1 to 16 mm². The energy limitation class is 3, and the surge category is 2. The rated impulse withstand voltage Uimp is 4kV.