Capacitors

Low-Inductance DC Capacitors
600V to 3600V, up to 7400μF, Irms up to 120A per capacitor

The E50 (PK16™) capacitor can be universally used for the assembly of low inductance DC buffer circuits and DC Link filters; with its high energy density it can replace banks of series-connected electrolytic capacitors as well as large film capacitors in rectangular cases. Thanks to its compact cylindrical aluminum (N1/N5) or plastic (N4) can designs this capacitor is ideal for both the electrical and mechanical requirements of high-speed IGBT converters.

Its robust terminals and the robust fixing stud allow for very simple and reliable mounting that unites lowest inductance and highest current strength.

Axial Low-inductance DC or AC/DC-Capacitors
1,300 VDC to 50,000 VDC, up to 700μF
2,350 VAC to 35,000 VAC, up to 5μF

The capacitors of the E51 series are primarily suitable for use in low inductance buffer circuits with higher voltages as well as in discharge circuits, and they are suitable for use in power electronics in general.

Despite the high voltage rating, they are manufactured in dry technology and without expensive bushings. Inside the can, made of self-extinguishing plastic, the capacitor element is enclosed in solid resin (PUR). Connection is made through robust terminals with internal thread. Along with their very good ratio of capacitance to volume, these capacitors also have high pulse strength and very good self-healing characteristics without loss of capacitance.

Radial and Axial Low-inductance AC/DC-Capacitors
280 VAC to 2100 VAC / 550 VDC to 5000 VDC, up to 250μF

E53 capacitors have a particularly low series resistance and high pulse strength; they are especially suited for low-inductance buffer circuits with high rms currents and for the damping of GTO thyristors.

Along with their very good ratio of capacitance to volume, these capacitors also have very good self-healing characteristics without loss of capacitance. Their very low self-inductance makes them suitable for use in high-current applications with medium frequencies.

DC-link/DC-Filter Capacitors in Rectangular Case
Up to 25,000 VDC, or up to 10,000 VAC, up to 60,000μF

Thanks to the special kind of films and coatings used in our E56/E59-capacitors, they unite large capacitance, low self-inductance and high surge current sustaining capability (up to 750kA) as well as the possibility of high rms currents (up to 1000A rms). Special flat terminals further reduce self-inductance.

These capacitors have a high specific ratio of capacitance to volume. At the same time, they are extremely overvoltage proof. The capacitors are housed in either steel or aluminum cases which are filled with solid resin, i.e. completely dry and leakage proof. Even at high operating temperatures, and after increased numbers of self-healing breakdowns, the capacitance remains stable.

DC-link/DC-Filter Capacitors in Rectangular Plastic Case
Operating temperatures up to 105°C

This range has been created particularly for applications in the automotive industry where high operating voltages and very compact design are often the key requirement.

Low-Inductance DC Capacitors for PCB mounting
500V to 1300V, up to 260uF, Irms up to 35A per capacitor

The E61 capacitor is based on the same philosophy as our PK16™ range, but prepared for direct mounting on printed circuit boards. Function and benefits are the same as with PK16™, in a smaller scale.

AC/DC-Capacitors for General Use
420VAC to 5000VAC

Thanks to their high AC-voltage load capacity and outstanding suitability for high rms and surge currents, E62 series capacitors are widely used in power electronics applications.

Filled with vegetable based liquid resin, these capacitors have a high specific ratio of capacitance to volume. Very good self-healing characteristics and the integrated overpressure protection (break-action mechanism) ensure safe operation and controlled disconnection in the event of overload or failure at the end of operating life. All designs with metal lid can be made available in same size and design as E65 with gas-filling.

DC-capacitors for General Use
800V to 6300V DC, up to 1800μF

The specialized films and coatings used in our E63-capacitors makes them interesting particularly for applications with high rms currents.

Filled with vegetable based liquid resin, these capacitors have a high specific ratio of capacitance to volume. At the same time, they are extremely overvoltage-proof. Very good self-healing characteristics and the integrated overpressure protection (break-action mechanism) ensure safe operation and controlled disconnection in the event of overload or failure at the end of operating life.

Three phase AC-Filter Capacitors
640VAC to 1700V AC (450Vrms to1200Vrms), up to 3 x 200μF

These capacitors which have been designed especially for harmonic filtering in three-phase mains stand out by their high AC-voltage load capacity and suitability for high rms and surge currents. Thanks to their construction they have a very low series resistance and a low self-inductance.

The three capacitor elements are connected in delta internally; liquid resin filling serves for improved heat dissipation. The finger-proof screw terminals of designs CAPAGRIPTM K, L and M (rated IP20) make for simpler connections.

Self-Healing Induction Furnace Capacitors
400Vrms to 800Vrms, up to 230kvar

Resonating capacitors / power factor correction in furnace applications

Dry-Type, Self-Healing Medium Voltage Capacitors
3,000 Vrms to 12,000 Vrms, up to 400kvar (3ph)

These capacitors are self-healing and extremely durable. The capacitance remains practically unchanged over a long period of time which is of particular interest for applications with tuning or detuning reactors; domino-like failures of entire groups of series-connected capacitor elements and the resulting phase asymmetries are practically impossible. Moreover, the capacitors are completely insensitive to vibration stress.