3 Things to Know Before Buying a Variable Speed Drive (VFD)

Home 9 Uncategorized 9 3 Things to Know Before Buying a Variable Speed Drive (VFD)

3 Things to Know Before Buying a Variable Speed Drive (VFD)

May 13, 2025 | Uncategorized

Posted by Hoodridge Industrial Automation | April 22, 2022

Variable Speed Drives (VFDs) are at the heart of modern industrial automation. Whether you’re managing a production line, a water pump system, or a processing plant, choosing the right VFD is critical for performance, energy efficiency, and equipment longevity.

At Hoodridge, we’ve seen firsthand how selecting the wrong drive—or cutting corners—can lead to costly downtimes and underperforming systems. Before you buy your next VFD, here are three key factors to consider:


1 Understand Your Load Profile

Every motor application has its own load characteristics—constant torque, variable torque, or a combination of both. A drive suited for a conveyor belt may not be ideal for a pump or mixer.

Tip: Take time to define your load type, speed requirements, and duty cycle. A tailored solution will always outperform a generic one.


2 Choose the Right Enclosure Protection (IP Rating

A powerful VFD is no good if it’s installed in the wrong environment. Dust, moisture, and temperature fluctuations can degrade performance quickly.

Tip: Always match your VFD’s IP rating to the environment it will operate in. For dusty or humid environments, IP54 or higher is recommended.


3 Think Beyond Today—Scalability Matters

We often meet clients who later regret not investing in a more flexible system. Your plant might grow, your processes might evolve, and your drive should be able to keep up.

Tip: Consider modular or expandable drive systems with communications options (Modbus, Profibus, Ethernet/IP) to future-proof your investment.


Final Thoughts

Investing in the right VFD is more than just a technical decision—it’s a business decision. Hoodridge Industrial Automation offers specification, supply, installation, and support for VFD systems across a range of industries, from food processing and manufacturing to municipal utilities.

If you’d like help selecting the right VFD or optimizing your current setup, get in touch with our team.

Our customer support team is here to answer your questions. Ask us anything!