An electrical device having an electrical component, which has an electric terminal, and a busbar assembly having a busbar and a frame. The busbar is formed of a strip of conductive material and has first and second busbar sides that are opposite from one another. The frame has a busbar seat and a cover member. The busbar seat extends through a first frame side of the frame. The busbar is received into the busbar seat and seated to the frame such that the first busbar side is spaced apart from the first frame side so that the busbar is contained wholly within the frame. The cover member abuts the second busbar side and defines an irradiation aperture that is configured to receive a laser beam from a laser welder therethrough. A laser weld fuses the busbar to the electric terminal.