The 1321-3R750-B is a three-phase input/output line reactor transformer with a maximum voltage rating of 600 VAC, operating at 50/60 Hz frequency. This IP00-UL/NEMA Type Open unit features a 750 AMPS capacity and 0.029 MH inductance. Note: Manufacturer has discontinued this product. Includes Radwell's 2-year warranty (original factory warranty not applicable).