Variable frequency drive cables support large horsepower motors

Belden introduces MCM VFD cables to support large horsepower motors.


Belden, provider of signal transmission solutions for mission-critical applications, announced the extension of its line of variable frequency drive (VFD) cables to include 250 MCM, 350 MCM and 500 MCM sizes. MCM VFD cables support installations of up to 250 horsepower motors at 460 V for use in oil and gas, petrochemical, power generation, water and wastewater treatment and other demanding industrial environments.

Belden MCM VFD cables are rated for use in exposed-run cable trays, direct burial and in wet or dry conditions. Belden’s MCM VFD cables are said to be designed to provide superior performance in noise-sensitive applications or in any damp or wet environment where reflected wave voltages may degrade PVC/nylon conductors. The cable is suitable for use with virtually all variable frequency drives, as well as for use as shielded power cable for other solid-state devices.

Electrical performance, reliability for VFD applications

VFDs reduce facility energy consumption and thus operating costs; however, VFDs can be a significant source of noise, most particularly electromagnetic interface (EMI), in a facility. In addition, VFDs are usually operated in close proximity to sensitive instruments, critical networks and safety systems. Proper cable selection from cables specifically designed to connect to VFDs can mitigate adverse effects on nearby cable systems and reduce the likelihood of cable or motor failure.

The design of Belden’s MCM VFD cables are said to provide superior common mode current protection and help protect a system against damage from reflected wave voltages and capacitively coupled current for maximum safety and reliability. Design features of Belden MCM VFD cables include symmetric bare grounds, dual copper tape shield, enhanced XLP insulation, industrial-grade PVC jackets for longer life and a TC-ER (Exposed Run) rating that allows cable to run from cable tray to point of utilization per the NEC to reduce the need for additional support or protection.


Belden’s MCM VFD cable carries the following ratings:  2000 V UL 1277 Type TC-ER per 2005 NEC Article 336, 1000V CSA TC C22.2 No 230, 90 ⁰C wet/dry, Class I & II, Div. 2 hazardous locations, UL 1685 vertical tray flame test, FT4, IEEE 1202 vertical tray flame test at 70,000 BTU/hour. The cable is rated UL direct burial, oil and sunlight resistant, RoHS compliant and CE approved.

- Edited by Control Engineering, CFE Media

Find other industrial networking products at

No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
A cool solution: Collaboration, chemistry leads to foundry coat product development; See the 2015 Product of the Year Finalists
Raising the standard: What's new with NFPA 70E; A global view of manufacturing; Maintenance data; Fit bearings properly
Sister act: Building on their father's legacy, a new generation moves Bales Metal Surface Solutions forward; Meet the 2015 Engineering Leaders Under 40
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security
Upgrading secondary control systems; Keeping enclosures conditioned; Diagnostics increase equipment uptime; Mechatronics simplifies machine design
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
Building high availability into industrial computers; Of key metrics and myth busting; The truth about five common VFD myths

Annual Salary Survey

After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.

The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.

Read more: 2014 Salary Survey: Confidence rises amid the challenges

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.