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Siemens 4EU2551-8UA00 3-Phase Mains Choke for Converters

Siemens 4EU2551-8UA00 3-Phase Mains Choke for VFDs.

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ManufacturerSiemens

Part number4EU2551-8UA00

Type 3-Phase Mains Choke

Max Current 224A

Voltage 480V (60Hz) / 400V (50Hz)

Voltage Drop 5.31V (at 60Hz)

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3-Phase operation Reduces voltage drop Protects converters Smooths current fluctuations For 480V/60Hz and 400V/50Hz systems

Product description

The Siemens 4EU2551-8UA00 is a 3-phase mains choke designed for use with variable frequency drives (VFDs) or other U-converters. Its primary function is to smooth out current fluctuations and reduce harmonic distortion, thereby protecting the converter and improving power quality. This choke is rated for converters up to 224A and is suitable for systems operating at 480V/60Hz or 400V/50Hz. It provides a voltage drop of approximately 5.31V at 60Hz.

This component is crucial in applications where power quality is a concern or where compliance with harmonic regulations is required. It helps to extend the lifespan of VFDs and connected motors by reducing stress caused by electrical noise and voltage transients. Common applications include industrial machinery, HVAC systems, and any setup utilizing VFDs for motor speed control.

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Technical specifications

Type	3-Phase Mains Choke
Max Current	224A
Voltage	480V (60Hz) / 400V (50Hz)
Voltage Drop	5.31V (at 60Hz)
For	U-Converters

Common applications

Variable Frequency Drives (VFDs)

Motor control

Industrial machinery

HVAC systems

Power quality improvement

Compatible systems

Siemens U-converters (VFDs) up to 224A 480V/60Hz and 400V/50Hz systems

Also known as

Siemens VFD Choke 4EU25518UA00 Siemens Line Reactor

Replaces / compatible with

This choke is designed as a component for Siemens U-converters (VFDs). It can replace other chokes with similar electrical specifications if compatibility is confirmed.

Technical note

Expert tip

Ensure proper mounting and ventilation as chokes generate heat during operation; consult the installation manual for correct wiring and connection procedures.

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Frequently asked questions

What is the purpose of the Siemens 4EU2551-8UA00 mains choke?

The Siemens 4EU2551-8UA00 mains choke is used to reduce harmonic distortion and smooth current fluctuations in the power supply to a U-converter (VFD). This helps protect the VFD and improve the overall power quality.