Yaskawa Electric Corporation UZBA-B Line Reactor

The Yaskawa Electric Corporation UZBA-B is a line reactor (AC reactor) used to stabilize incoming power, reduce harmonics, and protect drives and motors in industrial automation systems. It is rated for 400–440 VAC three‑phase, 50/60 Hz, with an inductance of about 0.26 mH (variant dependent), continuous current around 80 A (variant dependent), and peak current up to about 120 A; insulation class is H, mounting is panel/enclosure, and cooling is natural convection. Commonly installed in Mori Seiki CNC machines and Yaskawa servo drive systems operating on 440V three‑phase power, the UZBA-B helps reduce voltage spikes and smooth the power input, and it remains a widely used replacement option in CNC, servo, and industrial automation applications.