October 10, 2013

EMC components: Portfolio of reactors for frequency converters extended

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TDK Corporation presents a new product group of EPCOS standard 3-phase line reactors for frequency converters with input rectifier stages. Seven new types in the B86305L* series cover a broad current range from 4 A to 230 A. These line reactors are designed for a rated voltage of 520 V AC and, depending on the type, for a short-circuit voltage of 5 percent to 6 percent. They are thus able to efficiently suppress any EMI caused by the frequency converters.

The new line reactors are also characterized by their high saturation strength. As a result, their inductance remains constant up to 1.5 times the rated current. Even at three times the rated current, the inductance remains above 60 percent of its rated value. The reactors of the B86305L*R000 and S000 series are manufactured with a UL-approved insulation system that meets class F requirements. While the types for rated currents of up to the 60 A have copper windings and clamp terminals, the types for 100 A and 230 A feature aluminum band windings and busbar terminals.

Main applications

  • Frequency converters for drives, pumps, elevators, air-conditioning and conveyor systems
  • Three-phase power supplies

Main features and benefits

  • Rated voltage of 520 V AC
  • Current strengths from 4 A to 230 A
  • Constant inductance up to 1.5 times the rated current

Key data

Ordering codeRated voltage
[V AC]
Rated current

* Tolerance: -0/+20%, ±5% per phase referred to the mean value

Further information on the products can be found under www.epcos.com/reactors

Please forward reader inquiries to marketing.communications@epcos.com

About TDK Corporation
TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's portfolio includes electronic components, modules and systems which are marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2013, TDK posted total sales of USD 9.1 billion and employed about 80,000 people worldwide.

About TDK-EPC Corporation
TDK-EPC Corporation, a TDK group company, is the manufacturer of TDK’s electronic components, modules and systems and is headquartered in Tokyo, Japan. TDK-EPC was founded on October 1, 2009 from the combination of the electronic components business of TDK and the EPCOS Group. The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites, inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors.