MR-J3-70B Mitsubishi Servo Drive MR-J3 Series Motion Control

MR-J3-70B Product Overview

• The MR-J3-70B is a servo amplifier by Mitsubishi Electric.
• It belongs to the MELSERVO MR-J3 series.
• Designed for accurate motion control.
• Works with 200V to 230V AC systems.
• Author: Powergear X Automation

Main Performance Highlights

• Rated output power: 750 W.
• Rated current: 5.8 A.
• High response for dynamic motion.
• Stable torque and speed control.
• Supports demanding automation tasks.

Power and Efficiency Data

• Power supply capacity: 1.3 kVA.
• Inverse efficiency: 80%.
• Reduced energy loss.
• Lower heat generation.
• Improved system lifetime.

Electrical Input Details

• Input voltage: 200–230 VAC.
• Supports single-phase and three-phase input.
• Main circuit current: up to 54 A peak.
• Fast current attenuation during faults.
• Stable power handling.

Thermal and Environmental Limits

• Operating temperature: 0 to 55°C.
• Optimized heat dissipation design.
• Required cooling area: approx. 1 m².
• Suitable for control cabinets.
• Reliable in industrial environments.

Built-in Safety Functions

• Overcurrent protection.
• Undervoltage protection.
• Fast shutdown response.
• Protects motors and wiring.
• Reduces downtime risk.

Braking and Energy Handling

• Built-in dynamic brake.
• Integrated regenerative resistor.
• Regenerative energy absorption: 37.1 J.
• Improves stop accuracy.
• Enhances safety during deceleration.

Communication and Control

• Supports SSCNET III/H communication.
• High-speed data transfer.
• Low latency control signals.
• Easy integration with Mitsubishi systems.
• Stable long-term operation.

Mechanical Information

• Weight: approx. 1.4 kg.
• Compact form factor.
• Easy panel mounting.
• Space-saving design.
• Robust industrial housing.

Typical Application Areas

• Robotics systems.
• CNC machinery.
• Automated production lines.
• Material handling equipment.
• Precision positioning systems.

Key Selling Advantages

• High efficiency and low heat.
• Accurate motion control.
• Built-in braking features.
• Strong protection functions.
• Trusted Mitsubishi quality.

Warranty and Delivery

• Warranty period: 12 months.
• Shipping methods: FedEx, UPS, DHL.
• Secure industrial packaging.
• Fast global delivery.

Professional FAQ

• Is this model suitable for medium-power motors?
• Yes. It matches 750W class servo motors.
• Can it handle frequent start and stop cycles?
• Yes. The brake and resistor support this use.
• How do I reduce heat inside the cabinet?
• Ensure airflow and follow spacing guidelines.
• Is this unit good for energy-saving projects?
• Yes. High efficiency lowers power waste.
• What should I check before purchase?
• Confirm motor rating and supply voltage.

Contact Information

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825

Copyright © 2025
Powergear X Automation Limited.
All rights reserved.

Partner
Ubest Automation Limited
PLCDCS HUB Limited