EPCOS B440 series AC Filter Capacitors

Features and Applications of B440 series AC Filter Capacitors

The purpose of this article is to briefly illustrate what is possible with AC Filter Capacitors and the features and applications of these capacitors manufactured by EPCOS under the B440 series.

Applications

  • Motor drives
  • Industrial transport (non-car & non-light truck)
Associated Products

Part NumberDescriptionStockRFQ
B44020A0001B025Capacitor Hardware AL-ELKO ACCESSORIES ISOLATION DISC0RFQ
B44020B0002B030Capacitor Hardware AL-ELKO ACCESSORIES ISOLATION DISC0RFQ
B44020J0007B012Capacitor Hardware AL-ELKO ACCESSORIES CAP NUT0RFQ
B44020-B2-B30Insulating washer, M12, B44020-B2-B30, EPCOS0RFQ
B44030-A50-BFastening clamp ø 50 mm, B44030-A50-B, EPCOS0RFQ
B44020J0006B012Capacitor Hardware AL-ELKO ACESSORIES0RFQ
Technical Documents

An attempt to capture the failure of a RIFA AC filter capacitor in a TRS-80 Model II Microcomputer.

RIFA AC Filter Capacitor Blowup


The B440 series capacitors are constructed using a metalized polypropylene film with a flame-retardant plastic case. They have a voltage rating of up to 850V AC and a capacitance range from 2μF to 180μF. These capacitors are designed to operate in harsh environments and have a high ripple current rating of up to 20A RMS. The B440 series AC filter capacitors are ideal for use in high-performance AC filtering applications where long-term reliability and safety are essential.

Features

The main features of B440 series AC Filter Capacitors may be summarized as follows:

1. High capacitance and low ESR for efficient AC filtering

2. Low inductance and high current handling capacity

3. Self-healing properties for increased safety and reliability

4. UL, CSA, and VDE approved

Applications

  • Power factor correction

  • Motor drives

  • Wind and solar power inverters

  • Welding equipment

  • Uninterruptible power supplies (UPS)

  • Industrial Electronics

In various power electronics applications, such as frequency converters, DC link circuits, and high-power drives, the B440 capacitors can provide reliable performance and help to reduce energy losses. The capacitors can be used in a range of industrial electronics applications, such as power supplies, welding equipment, and motor control systems, where they can help to improve energy efficiency and reliability.



Frequently Asked Questions

What is the voltage rating of the B440 series AC Filter Capacitor?

The voltage rating ranges from 250VAC to 850VAC, depending on the model.

What is the temperature range of the B440 series AC Filter Capacitor?

The operating temperature range is -40°C to +85°C.

What is the capacitance range of the B440 series AC Filter Capacitor?

The capacitance range is from 0.22μF to 100μF, depending on the model.