3 Reasons Why the Right VFD Cable is Important

Variable-frequency drives (VFDs) are critical in today’s environment to ensure an efficient manufacturing process. They are used to control the frequency and voltage of an AC motor and yield additional performance and energy savings. Many operations professionals depend on them to regulate nearly every motor in a facility – sometimes hundreds of motors!

VFD cable is specifically engineered to carry power from the drive system to the motor and has been proven to extend motor life, improve efficiency, and avoid costly downtime.

Although VFD cable has become more popular over the last few years, many people have not yet realized the full benefits. Many facilities using VFDs expect a motor to fail every two years as a result of bearing or insulation failure. It’s important to note that this can be easily avoided and is often the result of the wrong cable placing excessive stress on the motor.

With that being said – why should you use VFD cable in your facility? We’ll share three reasons regarding the long-term benefits of using VFD cables and why it’s a safer, more reliable choice, and ultimately more cost effective.

1. The Right VFD Cable Can Prevent Premature Motor Failure

VFD systems are subject to harsh operating environments characterized by high voltage spikes and high levels of radiated noise.

How will using the wrong cable affect your motors? VFD outputs can cause a non-VFD cable to broadcast noise that can affect nearby devices. Commonly used alternative products such as unshielded tray cables or THHN wire are not suited for this application and can cause your motors to fail prematurely. These failures can cause downtime, productivity loss, and the need for new equipment, which is often very expensive.

2. The Right VFD Cable is a Safer Choice

Along with equipment faults, using a non-VFD cable can be a safety hazard for workers, putting them at risk of electrical shock.

Proper insulation and robust shielding are critical in preventing unwanted interaction between systems (and humans). When selecting VFD cable, you should look for XLP insulation because it can withstand voltage and heat significantly better than THHN and generic control or tray cable.

How a Distributor Can Help

Now that we have covered why the right VFD cable is important, let’s discuss the how.

More often than not, many operators don’t know to request VFD cable, and contractors tend to gravitate toward the cheaper option by default. To make matters more complex, there are no standards for VFD cable, so any construction-grade cable can be labeled a “VFD cable,” even if it only marginally improves reliability. You must select the right high-performance VFD cable to maximize the benefits of using a complete VFD system.

Navigating the VFD cable landscape can be complex, but the right distributor has the experience and product knowledge to guide your decision. Your local Wesco distributor can further help you identify what is best for your application.

Choosing the Right Partner

With 25 years of experience making the best VFD cables available, Belden is a specified cabling provider, dedicated to providing optimal electrical performance and physical toughness.

Together with the right distributor and supply chain partner, you will be equipped to increase workplace safety, reduce long-term failure costs, and protect your equipment.

Are you ready to optimize your supply chain?