Mitsubishi Electric MR-J3-350A4 MR-J3 Series Servo Amplifier

SKU MR-J3-350A4

In stock

12-month warranty
Free returns within 30 days

Manufacturer: Mitsubishi Electric
Product No.: MR-J3-350A4
Country of origin:United States
Product Type: Servo Amplifiers
Payment: T/T, Western Union
Weight: 4600g
Shipping port: Xiamen
Warranty: 12 months

Description

Designed for high-performance motion control, the MR-J3-350A4 servo amplifier operates within the MELSERVO-J3 product family to deliver precise torque, speed, and positioning control. This unit interfaces with compatible industrial rotary, linear, or direct drive motors, translating controller signals into highly accurate axis movements.

The MR-J3-350A4 features a general-purpose analog and pulse train control interface, making it compatible with a wide range of open-loop and closed-loop motion controllers. Incorporating real-time adaptive tuning, the drive automatically adjustments control parameters to compensate for mechanical load fluctuations, minimizing system settling time and mechanical resonance during demanding high-speed operations.

Features

Equipped with an advanced real-time auto-tuning system that continuously optimizes servo gains.
Built-in dynamic brake provides rapid deceleration and stopping during sudden power interruptions or emergency stop states.
Force-cooling structure with integrated cooling fans ensures thermal stability during high-duty cycles.
Dual-circuit architecture permits independent wiring of main power and control power inputs for safer diagnosis.
High-resolution encoder interface ensures clean feedback loop execution with reduced noise interference.

Applications

Industrial packaging and filling machines
Multi-axis CNC machine tool axes
Semiconductor fabrication and wafer-handling robotics
Automated material handling and sorting systems

Technical Specifications

Manufacturer	Mitsubishi Electric
Part Number/Model	MR-J3-350A4
Series	MELSERVO-J3
Product Type	Servo Amplifier (General-Purpose Interface)
Output Rated Voltage	3-phase 323 V AC
Output Rated Current	8.6 A
Main Circuit Power Supply	3-phase 380 V AC to 480 V AC, 50/60 Hz
Main Circuit Rated Current	7.9 A
Permissible Voltage Fluctuation	3-phase 323 V AC to 528 V AC
Permissible Frequency Fluctuation	Within 5%
Control Circuit Power Supply	1-phase 380 V AC to 480 V AC, 50/60 Hz
Control Circuit Rated Current	0.2 A
Control Circuit Power Consumption	45 W
Dynamic Brake	Built-in
Cooling Structure	Force-cooling
Weight	4.6 kg

Installation Guidelines

Mounting Orientation: Always mount the amplifier vertically on a solid, flat, and grounded metal panel to facilitate optimal thermal dissipation.
Clearance Requirements: Leave at least 10 mm of clear space on both the left and right sides of the unit, and a minimum of 40 mm above and below to ensure unobstructed airflow from the force-cooling fans.
Environmental Protection: Position the drive within an IP54 or higher rated control cabinet when operating in environments with airborne dust, conductive particles, or high humidity.
Shielding and Grounding: Ensure the power, motor, and feedback cables are properly shielded, and connect the shield braids directly to the ground plate to prevent electromagnetic interference (EMI).

FAQ

What is the main circuit input voltage required for the MR-J3-350A4?

The MR-J3-350A4 requires a 3-phase main circuit power supply of 380 to 480 VAC at 50/60 Hz, with an allowable voltage fluctuation range of 323 to 528 VAC.

Does this servo amplifier feature an integrated dynamic brake?

Yes, the MR-J3-350A4 has a built-in dynamic brake designed to quickly bring the servo motor to a safe stop during power failures or emergency conditions.

What cooling method does the MR-J3-350A4 utilize?

The module uses a force-cooling structure with built-in cooling fans to manage heat dissipation under heavy duty cycles.

What are the power requirements for the control circuit?

The control circuit runs on 1-phase 380 to 480 VAC at 50/60 Hz, with a rated current of 0.2 A and a power consumption of 45 W.

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Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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