280914 - Miller .34 uF 1700V Polypropylene Film Capacitor

Genuine Miller 280914 Capacitor: High-Performance Replacement

The Miller 280914 is a premium-grade Polypropylene Film Capacitor designed specifically for the rigorous electrical demands of industrial welding equipment. Engineered by Miller Electric, this component serves as a direct OEM replacement for internal circuitry, ensuring that your power source operates within its specified electrical parameters. This specific unit features a capacitance of 0.34 µF (microfarads) and is distinguished by its robust voltage rating of 1700 VRMS. This high root mean square voltage rating indicates the component's ability to withstand significant electrical stress, making it a critical element for maintaining the reliability and safety of the machine's power architecture.

This part is the official successor to the Miller 230272 capacitor. While the previous iteration was rated for 1000 VRMS, the 280914 upgrade to 1700 VRMS provides a substantial safety margin against voltage spikes and thermal stress. This improvement translates to a longer service life and reduced likelihood of component failure under heavy welding loads. The use of polypropylene film as the dielectric material ensures low dielectric losses, high insulation resistance, and excellent frequency characteristics, which are essential for the precision control circuits found in modern welding power sources.

Maintenance professionals and industrial electricians understand that using genuine OEM parts is vital for preserving the integrity of the equipment. Generic capacitors may not meet the specific form factor or the stringent electrical tolerances (+/- 10%) required by Miller engineering standards. By installing the Miller 280914, you ensure that the repair meets factory specifications, thereby protecting downstream components from potential damage caused by out-of-spec capacitance or voltage breakdown. Whether performing preventative maintenance or an emergency repair, this capacitor provides the quality assurance expected from Miller Electric products.

Installation of internal electrical components should always be performed by qualified personnel. The capacitor is supplied as a single unit. Please verify fitment by checking the parts breakdown for your specific Miller serial number, as this capacitor is utilized across various models in the Miller lineup.