The ABB 9T51B0157 3Kva Single Phase Transformer is designed for reliable performance in various environments, thanks to its NEMA 3R nonventilated weatherproof enclosure. This robust unit features encapsulated copper core and coils, ensuring durability and efficiency. The transformer is equipped with an integrated junction box that includes a ground lug, facilitating easy and secure wiring. With improved termination spacing and ample wiring compartment room, it offers flexibility in selecting UL listed connectors for both copper and aluminum cables. The enclosure is designed with built-in wall mount tabs for convenient installation. Additionally, the Type QB transformers are RoHS compliant and UL and cUL Listed, meeting the seismic requirements of IEEE-693-2005, IBC-2021, and CBC 2022, making it a reliable choice for various applications.