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Mitsubishi MR-J3-40B
by Mitsubishi Electric
Read verified buyer reviews ↓OverviewThe Mitsubishi Electric MR-J3-40B is a high-performance 400W AC servo amplifier designed for applications requiring exceptional speed and precise motion control. As a core component within the distinguished MR-J3 series, this servo amplifier is engineered for seamless integration into sophisticated industrial automation systems. Operating efficiently with a 200V 3-phase input, the MR-J3-40B utilizes Mitsubishi Electric's advanced SSCNET III fiber-optic communication for robust and high-speed data exchange. It offers versatile control capabilities, supporting position, speed, and torque modes to meet diverse operational needs. Its design emphasizes dynamic response and reduced wiring complexity, making it an excellent choice for manufacturing, robotics, and other rapid industrial environments globally.Key Features Series: MR-J3 Rated Output: 400W Input Voltage: 3-phase 200–230V AC Control Modes: Position, speed, and torque control for adaptable application Communication: SSCNET III (fiber optic) enables high-speed, synchronized data transmission Feedback: Supports both Absolute and Incremental encoder types Tuning Functions: Real-time auto-tuning and vibration suppression for top performance Safety Function: Integrated Safe Torque Off (STO) for enhanced operational security Cooling Method: Fan-cooled for dependable thermal management Mounting: Designed for straightforward Panel Mount installation Technical Specifications Catalog Number: MR-J3-40B Output Power: 400W Input Voltage: 3-phase 200–230V AC ±10% Frequency: 50/60 Hz Maximum Motor Speed: Up to 6000 rpm (motor dependent) Encoder Resolution: Up to 262144 ppr for meticulous positioning Communication Interface: SSCNET III Ambient Temperature: 0°C to 55°C operating range Mounting Type: Panel mount Enclosure Rating: IP20 Dimensions: Approximately 150 x 70 x 150 mm Weight: Approximately 1.5 kg Compatible Motors: Optimized for use with Mitsubishi HG/HC series servo motors ApplicationsThe Mitsubishi Electric MR-J3-40B servo amplifier is adaptable and robust, making it suitable for a broad range of demanding industrial applications where precision, speed, and reliability are essential: CNC and Machine Tools: Providing accurate and repeatable motion for cutting, shaping, and milling operations. Robotics and Automated Arms: Enabling smooth and rapid movements in industrial robots for assembly, welding, and material handling. High-Speed Packaging Equipment: Ensuring precise control for processes like filling, sealing, and labeling in automated packaging lines. Pick-and-Place Systems: Delivering fast and accurate positioning for component placement in manufacturing. Semiconductor and Electronics Assembly: Crucial for high-precision tasks in the production and assembly of sensitive electronic components. Why Choose This Model? High-Speed Performance: Enjoy exceptionally fast response times and smooth, precise motion control vital for modern automation. Network-Ready: The advanced SSCNET III interface simplifies complex system integration through synchronized multi-axis control. Compact Design: Its space-saving form factor allows for efficient installation in control panels, maximizing valuable cabinet space. Advanced Features: Benefit from real-time auto-tuning and integrated vibration suppression, ensuring optimal and consistent operational efficiency. Reliable Operation: Built with Mitsubishi Electric's renowned quality, featuring integrated safety functions for secure and dependable performance. Order NowThe Mitsubishi Electric MR-J3-40B servo amplifier is readily available for purchase and ships worldwide, allowing you to quickly upgrade or implement high-performance motion control in your operations. Explore our extensive Mitsubishi Electric Servo Drivers collection to discover more cutting-edge motion control solutions. For a complete range of Mitsubishi Electric automation equipment, visit our main Mitsubishi Electric Main Category.FAQWhat is the rated output of the Mitsubishi MR-J3-40B?The Mitsubishi MR-J3-40B has a rated output of 400W.What communication interface does the MR-J3-40B use?It uses the SSCNET III (fiber optic) communication interface for high-speed data transmission.Can this servo amplifier be used with different control modes?Yes, it supports position, speed, and torque control modes for versatile applications.What safety feature is included in the MR-J3-40B?The MR-J3-40B includes an integrated Safe Torque Off (STO) function for enhanced operational safety.What types of encoders are compatible with this model?It supports both Absolute and Incremental encoder types.
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Mitsubishi MR-J3-40B
Overview
This is a genuine Mitsubishi Electric component from the Servo Drives & Motors family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Mitsubishi Electric catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Mitsubishi Electric automation ecosystem
- Engineered to integrate inside Servo Drives & Motors installations
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Mitsubishi Electric equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Mitsubishi Electric catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Mitsubishi Electric platform with documented conversion notes for the Servo Drives & Motors family
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Catalog Number: MR-J3-40B
- Output Power: 400W
- Input Voltage: 3-phase 200–230V AC ±10%
- Frequency: 50/60 Hz
- Maximum Motor Speed: Up to 6000 rpm (motor dependent)
- Encoder Resolution: Up to 262144 ppr for meticulous positioning
- Communication Interface: SSCNET III
- Ambient Temperature: 0°C to 55°C operating range
- Mounting Type: Panel mount
- Enclosure Rating: IP20
- Dimensions: Approximately 150 x 70 x 150 mm
- Weight: Approximately 1.5 kg
- Compatible Motors: Optimized for use with Mitsubishi HG/HC series servo motors
Applications
The Mitsubishi Electric MR-J3-40B servo amplifier is adaptable and robust, making it suitable for a broad range of demanding industrial applications where precision, speed, and reliability are essential:
- CNC and Machine Tools: Providing accurate and repeatable motion for cutting, shaping, and milling operations.
- Robotics and Automated Arms: Enabling smooth and rapid movements in industrial robots for assembly, welding, and material handling.
- High-Speed Packaging Equipment: Ensuring precise control for processes like filling, sealing, and labeling in automated packaging lines.
- Pick-and-Place Systems: Delivering fast and accurate positioning for component placement in manufacturing.
- Semiconductor and Electronics Assembly: Crucial for high-precision tasks in the production and assembly of sensitive electronic components.
Why Choose the MR-J3-40B?
- High-Speed Performance: Enjoy exceptionally fast response times and smooth, precise motion control vital for modern automation.
- Network-Ready: The advanced SSCNET III interface simplifies complex system integration through synchronized multi-axis control.
- Compact Design: Its space-saving form factor allows for efficient installation in control panels, maximizing valuable cabinet space.
- Advanced Features: Benefit from real-time auto-tuning and integrated vibration suppression, ensuring optimal and consistent operational efficiency.
- Reliable Operation: Built with Mitsubishi Electric's renowned quality, featuring integrated safety functions for secure and dependable performance.
Availability & Shipping
- ▸In stock: MR-J3-40B ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every MR-J3-40B ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Mitsubishi Electric
Machine down? We ship parts the same day.
New, surplus, and refurbished Mitsubishi Electric inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.