The MP9-21499K Rev.B is a high-reliability, three-terminal (3×365 μF) electrolytic capacitor module specifically engineered for demanding industrial drive applications. Designed for integration into ABB’s medium-voltage and high-power converter systems (e.g., ACS880, PCS600, or modular multilevel converter platforms), it delivers robust AC line filtering, DC-link stabilization, and energy buffering under harsh operating conditions. Rated at 1000 VAC (50/60 Hz, continuous) and 1400 VDC (with derating per IEC 61071), the unit features low ESR, high ripple current capability, extended lifetime (≥10,000 h @ 70°C), and enhanced thermal management via integrated aluminum housing and forced-air compatible mounting. Includes built-in balancing resistors, discharge resistors (≤50 V in <3 min per IEC 61800-5-1), and UL/EN/IEC safety certifications. Compatible with ABB’s standard capacitor trays and monitoring interfaces (e.g., temperature and voltage sensing terminals). Revision B incorporates improved internal busbar layout and updated creepage/clearance compliance for higher pollution degree (PD3).