ABB 3HAC14551-1-05A Servo Drive Capacitor Unit

ABB 3HAC14551-1-05A is a high-power capacitor unit designed for ABB servo drive systems used in industrial robots. Identified as the C2 capacitor unit within the 3HAC14551-1 family, this module is commonly sold as a used spare part for ABB robotics equipment. The capacitor unit functions as energy storage and DC-bus support within ABB drive configurations, helping to maintain stable voltages during transient motor loads and regenerative events that occur in robotic automation. The 3HAC14551-1-05A designation corresponds to the C2 variant of this series and is often listed by authorized distributors as a replacement component for drive cabinets that require the C2 capacitor module. Typical buyers are service technicians and automation engineers replacing worn capacitor units in ABB servo drives, aiming to keep the control system compatible with existing ABB hardware. Because it is a factory spare part, this model's compatibility is tied to matching the 3HAC14551-1 family designation and the C2 variant to the customer’s drive configuration.