Mitsubishi MR-J4-500A 5kW AC Servo Amplifier
The Mitsubishi Electric MR-J4-500A is a digital AC servo amplifier from the MELSERVO-J4 series. Designed for industrial motion control, it supports accurate servo operation with compatible servo motors and controllers.
Key Features
- 5 kW rated servo capacity
- MELSERVO-J4 series digital AC servo amplifier
- 200–240 V AC main circuit supply
- General-purpose command interface
- 22-bit encoder resolution with compatible servo motors
- USB connection for compatible configuration software
- RS-422/RS-485 communication
- Built-in dynamic braking function
- STO safety functionality
- Designed for demanding industrial motion-control applications
Technical Specifications
| Manufacturer | Mitsubishi Electric |
|---|---|
| Model | MR-J4-500A |
| Series | MELSERVO-J4 |
| Product Type | Digital AC Servo Amplifier |
| Rated Capacity | 5 kW |
| Main Circuit Supply | 200–240 V AC |
| Supply Frequency | 50/60 Hz |
| Supply Phase | Three-phase standard; single-phase permitted under specified conditions |
| Rated Output Voltage | Three-phase 170 V AC |
| Rated Output Current | 28 A |
| Rated Main Circuit Input Current | 21.7 A |
| Command Interface | General-purpose interface |
| Encoder Resolution | 22-bit |
| Communication | USB and RS-422/RS-485 |
| Dynamic Brake | Built-in |
| Safety Function | STO (Safe Torque Off) |
| Supplier Listed Price | ₹78,500 per piece |
Applications
- Industrial automation and precision motion control
- CNC and positioning machinery
- Automated manufacturing systems
- Packaging and material-handling equipment
- Servo-controlled production machinery
Compatibility and Installation
Confirm the compatible servo motor, encoder, controller, electrical supply and wiring before installation. Follow Mitsubishi Electric’s installation instructions and provide the required electrical protection and cooling arrangements.
The standard MR-J4-500A is a general-purpose interface model. Modbus RTU and CC-Link connectivity should not be assumed without confirming the exact product variant.
Contact Nexis Controls for availability, pricing confirmation and technical assistance.





















