Product Description
The 5-meter MR-J3-PWS7-79-5M shielded power cable reliably connects 4kW and 7kW Mitsubishi MELSERVO MR-J3 series HG-SP/HG-JP servo motors, offering IP67-rated dust and water protection, high bending endurance, a straight connector for easy installation, and NFPA 79 compliance within a 0C to 55C operating range (-20C to 75C storage).
Is Your Device Showing These Signs?
The Mitsubishi MR-J3-PWS7-79-5M servo amplifier cable commonly experiences issues such as insulation degradation leading to short circuits, connector pin corrosion causing signal loss, and cable jacket damage resulting in electromagnetic interference (EMI). Technicians address these problems through cable replacement, connector refurbishment involving pin cleaning or replacement, and shielding repair to maintain signal integrity and prevent drive malfunction. Improper cable routing and stress on the connector are primary contributors to these failures, necessitating careful installation practices.
Technical specifications
The 5-meter MR-J3-PWS7-79-5M cable connects 4kW/7kW Mitsubishi MELSERVO MR-J3 servo motors, featuring IP67 protection, high bending endurance, easy installation, and NFPA 79 compliance.
Our Repair Process for the
MR-J3-PWS7-79-5M
Our repair process for the Mitsubishi MR-J3-PWS7-79-5M servo amplifier cable begins with a thorough inspection to identify insulation degradation, connector pin corrosion, and cable jacket damage. Technicians then execute cable replacement using manufacturer-approved components, connector refurbishment involving meticulous pin cleaning or complete replacement, and shielding repair to restore signal integrity and prevent drive malfunction. Installation practices are reviewed and corrected to eliminate improper cable routing and stress on the connector, ensuring long-term reliability.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















