Delivering Power Reliability
For over three decades, PQSI has been a trusted leader in power quality solutions, dedicated to keeping industrial facilities operational despite the challenges of voltage fluctuations. Our journey began with a mission to address a pervasive issue in industrial settings: momentary voltage drops that disrupt processes and cost businesses millions. Through innovation and a commitment to excellence, we developed the Coil-Lock—a revolutionary device that ensures magnetic contactors remain engaged during voltage dips, transforming how industries manage power reliability.
Since its inception, PQSI has sold over 30,000 Coil-Locks worldwide, serving industries from manufacturing to energy. These devices have saved businesses millions by preventing production losses—some facilities once lost a day of output per week due to voltage drops. Our lifetime guarantee underscores our confidence in the product.
Meet the Coil-Lock Inventor, Ralph Ferraro
Hear directly from Ralph Ferraro about the inspiration behind Coil-Locks and how our technology continues to make a difference.
Meet the Team Behind the Power
A dedicated group of professionals bringing passion, expertise, and innovation to everything we do.
Ket Gondha
President and CEO
Bruce Gresham
SVP Strategy
Angela Passanesi
Product DirectorProtect Your Operations with Coil-Locks
Eliminate costly downtime caused by voltage sags with our proven power quality solutions. Trusted by industries worldwide, Coil-Locks ensure your equipment stays online, saving you time and money. Ready to improve your reliability?
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