In many industrial environments — from lifts and cranes to machine tools and automated production lines — motors don’t just consume energy. During braking or deceleration, they generate it.
This regenerative energy flows back into the system. When powered by the mains, it can return to the grid. But when powered by a UPS, it moves toward the DC bus — and if not properly managed, it can cause overvoltage, shutdowns and unwanted transfers to bypass.
For critical infrastructures, even a brief interruption is not acceptable.
The Riello UPS Power Absorber (PWA) is designed to solve this challenge. Fully integrated inside the UPS cabinet and controlled by the system microprocessor, it safely dissipates regenerative energy in real time, maintaining voltage stability and operational continuity.
No external components. No complex configurations. Just reliable protection — even during braking events. If your installation includes regenerative loads, it’s essential to verify that your UPS system is correctly sized and configured.