Allen-Bradley 22-RFD480 Reflected Wave Filter

The Allen-Bradley 22-RFD480 is a reflected wave filter designed to mitigate voltage spikes and wave reflection issues in industrial motor drive installations. Operating as a critical protective accessory within Allen-Bradley drive systems, this unit helps safeguard motor insulation and improve system reliability across extended cable runs between variable frequency drives and connected motors. By damping high peak voltages generated by pulse-width modulated inverter switching, the filter reduces electrical stress on winding systems and prevents premature motor degradation in demanding automation environments. Weighing 10 kg, the 22-RFD480 is engineered for industrial control cabinets and drive enclosures. It is suited for applications requiring robust motor protection, including material handling, pumps, fans, and heavy-duty machinery operating under continuous service. Installing the filter ensures operational stability, minimizes system downtime, and maintains power quality across the motor circuit. The Allen-Bradley 22-RFD480 provides a dependable replacement solution for scheduled maintenance and facility retrofits.