The ABB 9T10A1008G03 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 300Kva, it operates at 480-208Y and maintains a temperature rise of 150C. Designed for reliability, it meets the seismic requirements of IEEE-693-2005, IBC-2021, and CBC 2022, ensuring performance even in challenging environments. The transformer is UL Listed and UL Energy Verified, available with either aluminum or copper windings, and offers low audible noise options. Ideal for applications requiring stringent noise isolation and energy efficiency.