Reliance Electric 600442-9B Capacitor

Reliance Electric 600442-9B is a high-capacitance DC bus capacitor in the 600442 series, cross-listed as AeroVox 600442-9B and 6004429B, and is associated with Reliance Electric drive systems sold under Rockwell/Baldor brands. The component is specified at 2400 µF (MFD) with a 350 V DC rating, and secondary-market listings note it has been discontinued by the manufacturer. Designed to smooth and stabilize the DC link in power-electron­ics drives and motor-control systems, this capacitor helps absorb voltage fluctuations and support peak current demands in drive circuits. When selecting a replacement, verify the exact lead configuration, case size, and mounting requirements against the original equipment specification, since these aspects can vary across production runs of the 600442 series.