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Mitsubishi MR-J4-40A
by Mitsubishi Electric
Read verified buyer reviews ↓OverviewThe Mitsubishi MR-J4-40A servo amplifier represents a pinnacle of control technology within the venerable MELSERVO-J4 Series. This unit is specifically crafted to deliver unparalleled motion control across a broad spectrum of industrial applications. Engineered for robust operation and consistent performance, this 400W servo amplifier is an essential element for systems requiring meticulous positioning and rapid dynamic response. Its adaptable interface allows for incorporation using both pulse train and analog inputs, making it highly versatile for various control methods. Furthermore, the inclusion of an integrated Safe Torque Off (STO) capability highlights Mitsubishi Electric's dedication to operational security, ensuring adherence to rigorous international benchmarks and offering peace of mind in critical operational settings. This amplifier stands as a testament to advanced automation, providing engineers and system integrators with a potent and adaptable solution for optimizing industrial processes.Key Features Rated Output: Supplies a steady 0.4 kW (400W) to efficiently power demanding operations. Power Supply: Operates smoothly with a 1-phase or 3-phase 200–240V AC power input, ensuring broad compatibility. Control Modes: Offers comprehensive control selections, supporting accurate position, speed, and torque control settings to meet varied application needs. Interface: Equipped with a versatile general-purpose interface, accommodating both pulse train and analog input signals for seamless integration. Safety Function: Incorporates an essential integrated Safe Torque Off (STO) feature, fully compliant with IEC/EN 61800-5-2, which boosts operational safety by quickly de-energizing the motor. Dynamic Brake: Features an integrated dynamic brake for swift and regulated deceleration, enhancing system responsiveness and safety. Communication: Provides convenient USB and RS-422 ports, simplifying configuration, parameter monitoring, and diagnostic tasks. Mounting: Designed for adaptable installation with choices for both DIN rail and panel mounting, optimizing space within control enclosures. Cooling Method: Employs efficient natural convection cooling (self-cooling), which minimizes maintenance requirements and guarantees dependable operation without needing external fans. Technical Specifications Model: MR-J4-40A Series: MELSERVO-J4 Input Voltage Range: 170–264V AC Frequency: 50/60 Hz Rated Current: 2.6 A Control Method: Sine-wave PWM control / current control Maximum Input Pulse Frequency: 4 Mpps (differential input), 200 kpps (open collector) Encoder Resolution: Exceptional 22-bit (4,194,194 pulses/rev) for ultra-fine positioning. Dimensions (W × H × D): Compact 40 × 168 × 170 mm, ideal for space-constrained installations. Weight: Approximately 1.0 kg Operating Temperature: 0°C to 55°C Storage Temperature: -25°C to 75°C Certifications: CE, UL, cUL, UKCA, EAC Environmental Compliance: RoHS compliant ApplicationsThe Mitsubishi MR-J4-40A servo amplifier is designed to excel in a wide variety of demanding industrial sectors where precision, velocity, and unwavering reliability are crucial. Its robust construction and advanced features make it a prime choice for: CNC Machinery: Enables exceptionally accurate and repeatable movements in milling, turning, and grinding operations. Robotics: Provides the precise motion control essential for sophisticated robotic arms used in assembly, welding, and material handling. Conveyors and Material Handling Systems: Ensures smooth, controlled, and efficient movement of goods in logistics and manufacturing settings. Packaging Equipment: Delivers the rapid and precise actions necessary for high-speed packaging, labeling, and sealing machinery. Printing Machines: Offers exact registration and web tension control critical for high-quality printing presses. Semiconductor Manufacturing: Supports ultra-precise positioning and delicate manipulation in advanced semiconductor production processes. Why Choose This ModelThe Mitsubishi MR-J4-40A offers unmatched precision and reliability, making it an ideal choice for advanced industrial automation. Its robust design and integrated safety features ensure consistent performance and peace of mind in critical applications. The flexible interface and multiple control modes provide versatile integration options, enhancing operational efficiency and system adaptability for diverse manufacturing needs.Order NowEnhance your industrial automation with the Mitsubishi MR-J4-40A servo amplifier. Contact us today to learn more or to place your order.FAQWhat is the rated output of the Mitsubishi MR-J4-40A?The Mitsubishi MR-J4-40A servo amplifier provides a consistent rated output of 0.4 kW (400W).What are the power supply requirements for this servo amplifier?This servo amplifier operates on a 1-phase or 3-phase 200–240V AC power supply.Does the MR-J4-40A include safety features?Yes, it features a built-in Safe Torque Off (STO) function, compliant with IEC/EN 61800-5-2, enhancing operational safety.What types of control modes does it support?It supports precise position, speed, and torque control modes, catering to diverse application requirements.What are the dimensions of the Mitsubishi MR-J4-40A?The compact dimensions are 40 × 168 × 170 mm (W × H × D).
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Mitsubishi MR-J4-40A
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
- Model: MR-J4-40A
- Series: MELSERVO-J4
- Input Voltage Range: 170–264V AC
- Frequency: 50/60 Hz
- Rated Current: 2.6 A
- Control Method: Sine-wave PWM control / current control
- Maximum Input Pulse Frequency: 4 Mpps (differential input), 200 kpps (open collector)
- Encoder Resolution: Exceptional 22-bit (4,194,194 pulses/rev) for ultra-fine positioning.
- Dimensions (W × H × D): Compact 40 × 168 × 170 mm, ideal for space-constrained installations.
- Weight: Approximately 1.0 kg
- Operating Temperature: 0°C to 55°C
- Storage Temperature: -25°C to 75°C
- Certifications: CE, UL, cUL, UKCA, EAC
- Environmental Compliance: RoHS compliant
Applications
The Mitsubishi MR-J4-40A servo amplifier is designed to excel in a wide variety of demanding industrial sectors where precision, velocity, and unwavering reliability are crucial. Its robust construction and advanced features make it a prime choice for:
- CNC Machinery: Enables exceptionally accurate and repeatable movements in milling, turning, and grinding operations.
- Robotics: Provides the precise motion control essential for sophisticated robotic arms used in assembly, welding, and material handling.
- Conveyors and Material Handling Systems: Ensures smooth, controlled, and efficient movement of goods in logistics and manufacturing settings.
- Packaging Equipment: Delivers the rapid and precise actions necessary for high-speed packaging, labeling, and sealing machinery.
- Printing Machines: Offers exact registration and web tension control critical for high-quality printing presses.
- Semiconductor Manufacturing: Supports ultra-precise positioning and delicate manipulation in advanced semiconductor production processes.
Why Choose the MR-J4-40A?
The Mitsubishi MR-J4-40A offers unmatched precision and reliability, making it an ideal choice for advanced industrial automation. Its robust design and integrated safety features ensure consistent performance and peace of mind in critical applications. The flexible interface and multiple control modes provide versatile integration options, enhancing operational efficiency and system adaptability for diverse manufacturing needs.
Availability & Shipping
- ▸In stock: MR-J4-40A 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-J4-40A ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Mitsubishi Electric
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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.