Hager KDN463A insulated phase busbar, 4P, 3-phase, 63 A, 400 V, 10 mm², 210 mm, fork connection

This Hager KDN463A phase busbar is designed for orderly power distribution between modular devices in distribution boards. It is used in three-phase installations where several protective or switching devices need to be connected on a common supply point without individual jumper wires. Such a solution simplifies wiring, reduces the number of separate connections, and helps maintain a neat layout inside the panel. The busbar is suitable for residential, commercial, and service electrical cabinets where compact assembly and clear circuit organization are important. The model has 4 poles and is intended for 3 phases. Its nominal continuous current Iu is 63 A, while the maximum rated operational voltage Ue is 400 V. The conductor cross-section is 10 mm², which matches the specified current rating and supports use in low-voltage distribution systems. The electrical connection type is fork-style, which is commonly used for modular equipment in panels. The busbar is suitable for devices with an N conductor and is designed for use with 3 devices. At the same time, it is not intended for devices with an auxiliary switch. The product is insulated, which adds an important level of safety during installation and operation inside the switchboard. The rated impulse voltage is 4.5 kV, confirming its suitability for low-voltage distribution applications. The gray color makes the component easy to identify among other parts of the assembly. With a length of 210 mm, a module width of 17.8 mm, and a width of 12 modular pitches, the busbar fits common modular panel layouts. Another practical advantage is that it can be cut to size, allowing the installer to adapt the busbar to the specific configuration of the enclosure. This makes it easier to match the available space on the DIN rail and align the distribution system with the project requirements. Overall, the KDN463A is a technical component for connecting and distributing phase power in modular boards, with defined electrical ratings, insulated construction, and compatibility with selected modular devices.