The ABB 9T10A1004G03 Guard I Noise Isolation Transformer is engineered to deliver superior noise attenuation, effectively reducing common mode noise caused by electromagnetic interference, radio interference, and ground loops. This transformer features a robust copper shielding between the primary and secondary coil windings, minimizing capacitive noise coupling that can disrupt electrical systems. With a capacity of 3A and 75Kva, it operates efficiently at 480-208Y and a temperature rise of 150C. The transformer is DOE Certified, UL Listed, and Seismic Qualified, meeting the rigorous standards of IEEE-693-2005, IBC-2021, and CBC 2022. Available with either aluminum or copper windings, it also offers low audible noise options, making it a versatile choice for various applications.