MP9-21451K Rev.F EC Capacitor — 3×349μF, 500VAC / 900VDC, for ABB Converters

The MP9-21451K Rev.F is a high-reliability, three-phase electrolytic capacitor module designed specifically for industrial drive and power conversion applications. It consists of three identical, internally balanced 349 μF capacitors (total 3×349 μF), rated for continuous operation at 500 VAC (50/60 Hz) and peak DC voltage up to 900 VDC. Engineered for harsh environments, it features low ESR, high ripple current capability, extended service life (≥10,000 h @ 85°C), and robust vibration resistance. Certified for use in ABB’s AC/DC/AC converter systems — including ACS880, ACS800, and similar medium-voltage or high-power drive platforms — the module includes integrated balancing resistors, pressure-relief venting, and standardized mounting (M6 terminals, 3U chassis footprint). Compatible with ABB’s thermal management and monitoring interfaces per Rev.F hardware revision.