B32376 series rugged three-phase AC-filter capacitors

28th September 2020

Alex Lynn

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TDK Corporation presents two new series of EPCOS power capacitors for AC filtering in three-phase delta connection applications. The B32375* series is designed for the low to medium power range and covers a capacitance spectrum from 3x5µF to 3x50 µF with rated voltages from 250 VRMS to 600 VRMS.

The can diameters are 50 or 63.5mm and the heights vary between 128 and 275mm depending on capacity and voltage. These capacitors have faston terminals for easy installation.

The B32376* series is designed for high power with a capacitance range from 3x10µF to 3x400µF with rated voltages from 250 VRMS to 1000 VRMS. The can diameters are 116 or 136mm and the heights are between 200 and 275mm. These capacitors have screw terminal M10 for safety installation. The capacitors in this series are also available in versions with a vibration resistance of 20g.

A key feature of the new capacitors compared with predecessor types is an improved safety device in accordance with IEC-61071, which eliminates the need for soldering. This results in a long service life of up to 100,000 hours at a continuous hot-spot operating temperature of 85°C and 200,000 hours at 70°C.

The main areas of application are input and output filters of high-performance converters, for example in traction applications or in the field of renewable energy.