Yaskawa UZDA-B 33A DC Reactor

Description:

The Yaskawa UZDA-B 33A is a DC reactor used in industrial drive systems to smooth DC bus current, reduce harmonic distortion, and protect internal components of variable frequency drives, commonly installed in Yaskawa VFDs, CNC machines, and servo systems, and purchased by maintenance teams, OEMs, and integrators for replacement of failed reactors and improvement of drive performance and longevity.

Applications:

The Yaskawa UZDA-B DC reactor is used in industrial automation environments where DC bus stability and power quality are critical. It is commonly deployed inside VFDs and servo drives in CNC machines, robotics, and conveyor systems where it reduces ripple current, improves power factor, and minimizes stress on capacitors and rectifiers. Yaskawa specifically recommends DC reactors for larger power supplies to enhance system reliability and efficiency.

Technical Specifications:

• Manufacturer: Yaskawa Electric Corporation
• Model: UZDA-B (33A variant)
• Product Type: DC reactor (DC link choke)
• Rated Current: 33 A
• Function: DC bus smoothing, harmonic reduction, inrush current limiting
• Application: Installed in DC circuit of VFD / servo drive systems
• Inductance: Variant-dependent (typically matched to drive size)
• Voltage Class: Matched to drive DC bus (typically 200–400V class drives)
• Installation: Internal or panel-mounted within drive system
• Cooling: Passive (natural convection)
• Construction: Industrial coil reactor
• Compatibility: Yaskawa drives (V1000, A1000, etc.) and similar systems
• Duty Cycle: Continuous operation
• Status: Legacy / still widely used in replacement market

Common Replacements:

• Yaskawa UZDA-B
• Yaskawa UZDA series DC reactors
• Generic DC link reactor