OMRON R88ARR12025 Regenerative Braking Resistor for Servo Drives

The OMRON R88ARR12025 (R88ARR12025) is an external regenerative braking resistor designed for use with OMRON servo drive and servo amplifier systems. In high-inertia or rapid deceleration motion control applications, servomotors generate reverse electromotive energy that flows back to the drive DC bus. The external regenerative resistor absorbs and dissipates this excess regenerative electrical energy as heat, protecting internal drive components against overvoltage conditions and ensuring stable operation during demanding stop cycles. Rated at 120 W with an electrical resistance of 25 ohms, this compact unit connects directly to compatible OMRON servo drive units requiring supplemental regenerative capacity. By providing external energy dissipation, the unit prevents regenerative overvoltage faults in dynamic motion systems, automated machinery, packaging lines, and industrial positioning equipment. Integrating the genuine OMRON resistor ensures optimal electrical matching with compatible drives, enhancing drive reliability, heat management, and overall system longevity across industrial automation installations.