Mitsubishi MR‑J4W3‑444B

Mitsubishi MR‑J4W3‑444B 

Overview

The MR‑J4W3‑444B is a high-performance servo amplifier from Mitsubishi’s MR‑J4W series. Delivering 4.4 kW output at 400 V, it utilizes SSCNET III/H for ultra-fast, deterministic control. Designed for demanding tasks requiring both power and precision, it's ideal for heavy-duty servo motor applications in advanced industrial automation.

Key Features

• Rated Output: 4.4 kW (three-phase 400 V)

• Communication: SSCNET III/H high-speed fiber‑optic network

• Control Functions: Real-time tuning, advanced vibration suppression, torque control

• Safety Compliance: Built-in STO (Safe Torque Off) per IEC 61800‑5‑2

• Scalability: Compatible with high-capacity HG-KR and HG-JR servo motors

• User Interface: LED status panel and USB for configuration via MR Configurator2

• Mounting Flexibility: DIN rail and panel support with compact housing

Technical Specifications

• Input Voltage: 380–480 V AC (three-phase)

• Control Type: Fully digital PWM

• Feedback Support: Absolute encoder compatibility

• Ambient Temp: 0–55 °C

• Certifications: CE, UL, cUL for global industrial use

• Dimensions: Compact design for panel deployment

Applications

• CNC machine axes requiring high torque

• Heavy-duty pick-and-place or transfer robots

• Injection molding and die-casting automation

• Presses, milling, and lathes needing robust servo control

• High-inertia or high-speed industrial machinery

Why Choose Mitsubishi MR‑J4W3‑444B?

• High-power capability with accurate positioning

• Ultra-fast SSCNET III/H enables precise multi-axis synchronization

• Advanced safety and tuning features for smooth operation

• Sturdy design suitable for industrial environments

• Compatible with Mitsubishi MR‑J4 ecosystem and support tools

Order Now

Upgrade your automation capabilities with the Mitsubishi MR‑J4W3‑444B — high-power, precise, and reliable servo amplifier engineered for high-performance industrial motion control.

Explore more models in our Mitsubishi Servo Drivers collection for high-performance motion control solutions.

For additional Mitsubishi automation equipment, visit the Mitsubishi Main Category.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply