28.E5.T60-7A00 KEB
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The KEB 28.E5.T60-7A00 is an EMC filter from the Combiline EMC Filters series. It has a rated input voltage of 565 VDC and a rated current of 410 Amps, with a leakage current of 60 mA. The filter supports a maximum input voltage of 840 VDC, has a maximum ambient temperature of 45 °C, and dissipates 50 W of power.
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Product Description:
The 28.E5.T60-7A00 is a DC-link electromagnetic compatibility filter manufactured by KEB for the Combiline EMC Filters series. Mounted between the rectifier stage and the inverter, it suppresses high-frequency noise that would otherwise return to the supply or radiate through motor leads. By keeping conducted emissions within industrial limits, the device helps drive systems satisfy plant-level requirements and protects nearby measurement or control electronics from switching interference.
The filter is rated for a nominal bus voltage of 565 VDC, and its laminated copper paths can carry a continuous current of 410 A. Attenuation covers the spectrum from 0.15 to 30 MHz, the range in which steep IGBT edges generate most differential-mode and common-mode disturbances. Dielectric spacing withstands a hipot test of 2772 V for 2 s, confirming the integrity of the insulation. Its C2 EMC classification indicates suitability for industrial networks supplied by a dedicated transformer. Additional line filters are unnecessary when the applicable installation requirements are observed.
Low copper loss is achieved with a winding resistance of 0.001 Ω per phase, limiting internal heating during continuous service. Displacement current toward protective earth is held to 60 mA, allowing most residual-current devices to operate without nuisance trips. The open-frame construction has an IP00 rating, and total power dissipation remains 50 W when the ambient temperature does not exceed 45 °C. During transient events such as braking or rapid acceleration, the filter withstands 150% of nominal current for up to 60 seconds. Additional operating limits include a maximum DC input of 840 V and a permitted motor cable length of 30 m. The filter uses two DC conductors, one positive and one negative, plus a protective earth conductor, and its insulation resistance to earth is 15 MΩ.
