YP15-3 is a three-phase transformer manufactured by Eastern Transformers Ltd. It is designed for use with ceiling-mounted or exposed voltage-mounted transformers. It is rated for 15 kVA and has a voltage range of 119 to 5781 volts. The YP15-3 is a high-efficiency transformer and has a no-load loss of 6.0 W, which is lower than most other transformers. It also has a high degree of overload protection and a wide temperature range of -25°C to 85°C. The transformer is also UL/CSA approved, making it suitable for use in residential and commercial applications.