Benshaw R2LR050-51C Load Reactor, Open, 50.0Hp (NEC), 575V, 52.0A. Manufactured by BENSHAW. Benshaw R2LR050-51C Load Reactor, Open, 50.0Hp (NEC), 575V, 52.0A (NEC), 1.5% Impedance. Manufacturer Part Number: R2LR050-51C.