The ABB 9T10C1003G03 Guard I Noise Isolation Transformer is engineered to deliver superior noise attenuation, effectively reducing common mode noise between neutral and ground, as well as transverse mode noise. This noise, often caused by electromagnetic interference, radio interference, and ground loops, is mitigated through a specialized copper shielding between the primary and secondary coil windings. This design minimizes capacitive noise coupling, ensuring a stable and reliable electrical system. The transformer is UL Listed and UL Energy Verified, offering peace of mind with its compliance to rigorous safety and efficiency standards. Available with either aluminum or copper windings, it caters to various operational needs with its three temperature rise ratings and low audible noise options. Additionally, it meets the seismic requirements of IEEE-693-2005, IBC-2021, and CBC 2022, making it a robust choice for environments prone to seismic activity.