Harmonic distortion is one of the most significant electromagnetic disturbances in power systems due to its widespread propagation and well-known adverse effects, including increased energy losses, accelerated equipment aging, and operational failures. In recent years, this disturbance has intensified due to the increasing penetration of power electronic devices (PEDs) in electrical networks, particularly in the residential sector. Although different models have been developed to analyze the individual harmonic behavior of these devices, the models commonly used to represent aggregated residential loads are often simplified and fail to accurately capture their aggregate harmonic behavior. In this paper, based on experimental measurements, Least Squares Estimation (LSE) is used to develop an individual Coupled Norton (CN) model for a typical set of residential loads, which is then used to construct a component-based aggregated model. The accuracy of this aggregated model is evaluated against a measurement-based aggregated model for the same set of PEDs, showing good performance with errors below 10% in the elements of the Frequency Coupling Matrix (FCM). These results indicate that the proposed model is a viable and accurate alternative for representing aggregated residential loads and constitutes a valuable tool for harmonic analysis studies