The NSX adapter for 60mm busbar system simplifies the installation of the 3-pole circuit breaker NSX 400-630. The power distribution is carried out via a busbar. The mounting plate is mounted directly on the busbar by snapping it on. This creates the mechanical and electrical connection. The busbar axis length is 60 mm. Depending on the cross-section of the bars, the busbar associated with the terminals can withstand a maximum current of 630A. This system offers numerous advantages, such as space saving in the control cabinet and easy connection. This system also offers a fast, safe and reliable electrical and mechanical connection. By using busbars and end covers, this system also offers IP20 protection. This system also offers easier maintenance as well as flexibility and modularity of the equipment.