" JN8L6303MH (MCCB Vertical Connection Kit – 630A) The JN8L6303MH is a high-conductivity busbar connection kit, designed for securely linking MCCBs in vertical power distribution panels. It ensures low-loss, high-efficiency electrical transmission for MCCBs up to 630A. Category: Electrical Panel Connection Kit Current Rating: Up to 630A Adjustable Range: Fixed Busbar Connection Short Circuit Capacity: 50kA Voltage Rating: 230/400V AC Material: Copper busbars with high-insulation coating Mounting Type: Vertical MCCB Connection for Panel Boards Application: Used in power distribution panels for high-load circuits. Ensures secure and stable electrical connections for MCCBs. Ideal for industrial substations, commercial electrical infrastructure, and smart grid applications. "