Yaskawa GA50U4038ABA-134 (includes $150 mounting NEMA kit)

Power and Technical Ratings

• Normal Duty (ND): 25 HP, 38.0 Amps output
• Heavy Duty (HD): 20 HP, 31.7 Amps output
• Input/Output Voltage: 480 VAC, 3-Phase
• Enclosure Type: IP20 / Protected Chassis
• Physical Dimensions: Height 11.81 in, Width 7.09 in, Depth 5.63 in
• Weight: 10.60 lbs

Key Features

• Coated Boards: Dual-conformally coated printed circuit boards resist dust and moisture.
• Braking: Built-in braking transistor for dynamic braking.
• Safety: SIL3 and PLe safety ratings.
• Communication: Embedded Modbus support

The Yaskawa GA50U4038ABA-134 is the largest and most powerful drive in the 480 V high-frequency GA500 class. Capable of outputting high frequencies, this premium microdrive is designed to handle high-capacity high-speed spindles used in CNC routing, metal milling, aerospace component fabrication, and complex industrial manufacturing.

Operating on 380–480 V 3-phase power, this high-performance model delivers continuous power in Heavy Duty continuous operation. With its generous 150% overload protection, this drive ensures reliable, non-stop performance during continuous heavy roughing and fast machining cuts.

Key Performance & Architectural Advantages

High-Frequency Speed Profile

Broad high-frequency output ranges support high-speed spindle machining operations without sacrificing motor torque efficiency or thermal performance across high RPM stages.

Universal Motor Control

Supports advanced sensorless open-loop vector, EZ Vector, PM motor tracking, and traditional V/f control for highly adaptive operation across different spindle motor designs.

Embedded DriveWorksEZ®

Customize specific VFD logic operations and automate auxiliary controls without an external PLC by utilizing built-in icon-based software programming environments.

Integrated Braking Transistor

Offers direct dynamic braking torque capability out of the box to rapidly slow and stop high-inertia routing and milling spindles safely (requires external resistors).

Coated PCB Protection

Standard dual-conformally coated printed circuit boards provide robust resistance to conductive metal fragments, carbon wood dust, and humid cooling mist atmospheres.

24 VDC Auxiliary Control Power

Directly powers internal control logic loops and connected external system sensors without requiring a secondary auxiliary cabinet power supply unit.