Yaskawa Electric Type UZBA-B Reactor 440V CNC

Description:

The Yaskawa UZBA-B is a line reactor used in industrial motor control and CNC systems to stabilize incoming power, reduce harmonic distortion, and protect drives and motors, commonly installed in Mori Seiki CNC machines and Yaskawa drive systems operating on 440V 3-phase power, and purchased by maintenance teams, OEMs, and integrators for replacement of failed reactors and protection of sensitive electrical components.

Applications:

The Yaskawa UZBA-B reactor is used in industrial automation environments where electrical noise reduction and power conditioning are required. It is commonly deployed in CNC machines, servo drive systems, and robotic equipment where it helps reduce voltage spikes, limit inrush current, and extend the lifespan of drives and motors. In Mori Seiki CNC systems, this reactor plays a critical role in maintaining stable operation and protecting high-value control electronics.

Technical Specifications:

• Manufacturer: Yaskawa Electric Corporation
• Model: UZBA-B
• Product Type: Line reactor / AC reactor
• Rated Voltage: 400–440 VAC (3-phase)
• Frequency: 50/60 Hz
• Inductance: ~0.26 mH (variant dependent)
• Continuous Current: ~80 A (variant dependent)
• Peak Current: Up to ~120 A
• Insulation Class: Class H
• Mounting: Panel / enclosure mount
• Cooling: Natural convection
• Function: Reduces harmonics, protects drives, smooths power input
• Application: CNC machines (Mori Seiki), servo drives, industrial automation
• Status: Legacy / still widely used in replacement market

Common Replacements:

• Yaskawa UZBA-B
• Yaskawa UZ8A-B
• Generic 3-phase 400–440V line reactor