00720072| Datasheet

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Capacitors with Screw Terminals General General
Capacitors with 2-pad solution The more compact design of modern frequency inverters, UPS systems and power supplies leads to a rising thermal load of capacitors in the DC bus. Further increases in performance can be achieved only by optimally adapted components and a thought out heat management. This is also valid for aluminum electrolytic capacitors, which are optimized for particularly high ripple current load capability (e.g. extended cathode foil for optimized heat dissipation to can base). Due to the "extended cathode foil" construction and with the help of special heat conducting foils ("2-pad solution") heat dissipation at the can base can be improved by up to 15 times. This results in an increase of the ripple current capability (refer to the data for I~R (B), TB in useful life curves and table "Technical data and ordering codes"). The increase of the permissible ripple current allows a reduction of devices joined in parallel and thus a noticable cost reduction as well a a clear reduction in size an
d volume of the bank. All high-voltage data book types without threaded stud and for diameters 64,3 mm can be ordered in 2-pad design (last digits of ordering code: 006).

Thermopad thickness 0,5 mm 0,2 mm

Heatsink

KAL0823-3-E

Low-inductance design Low-inductance aluminum electrolyte capacitors offer numerous advantages for frequency converter design:
s Voltage peaks caused by steep-edged pulses are significantly reduced. s Power semiconductors of a lower voltage class can be used. s Capacitors banks require fewer capacitors, which reduces the cost, weight and space require-

ments of frequency converters accordingly. The low inductance of the aluminum electrolytic capacitor with screw terminals is the result of various design improvements. This optimized design has no impact on overall capacitor dimensions. Most of the data book types with diameter 64,3 mm can be ordered in low-inductance design with inductance approx. L = 13 nH (last digits of ordering code: 003).

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