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Siemens 3-Phase Mains Choke 4EP4000-6US for Converters

Siemens 125A 3-Phase Mains Choke for Frequency Converters.

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ManufacturerSiemens

Part number4EP4000-6US

Type 3-Phase Mains Choke

Current Rating 125A

Voltage 480V 60Hz / 400V 50Hz

Voltage Drop 5.31V at 60Hz

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3-Phase mains choke 125A current rating Reduces harmonic distortion Protects converters Suitable for 480V/60Hz and 400V/50Hz systems Low voltage drop

Product description

The Siemens 4EP4000-6US is a 3-phase mains choke designed for use with frequency converters (U-converters). It has a current rating of 125A and is suitable for input voltages of 480V at 60Hz or 400V at 50Hz. This choke helps to reduce harmonic distortion and protect the converter from line noise and voltage fluctuations, with a specified voltage drop of 5.31V at 60Hz.

This component plays a vital role in ensuring the reliable operation and longevity of variable frequency drives (VFDs) and other converter-based systems. It is commonly used in industrial applications such as motor control, pump systems, and conveyor belts where power quality is critical for system performance and efficiency.

Stanlo Automation, a veteran-owned surplus distributor, offers a selection of Siemens industrial components, including mains chokes like the 4EP4000-6US. Sourcing from Stanlo provides access to quality surplus parts, ensuring your automation systems are maintained with essential protective devices.

Technical specifications

Type	3-Phase Mains Choke
Current Rating	125A
Voltage	480V 60Hz / 400V 50Hz
Voltage Drop	5.31V at 60Hz
Application	For U-converters

Common applications

Motor Control

Variable Frequency Drives (VFDs)

Pump Systems

Conveyor Systems

Industrial Machinery

Power Quality Management

Compatible systems

Siemens U-converters Various 3-phase frequency converters (verify voltage and current ratings)

Also known as

Siemens 125A converter choke 3-phase input choke 4EP4000 series choke Siemens line reactor

Replaces / compatible with

This mains choke is designed for use with Siemens frequency converters and similar variable speed drives. It improves power quality for connected equipment.

Technical note

Expert tip

Ensure correct installation in the line feeding the frequency converter to effectively mitigate harmonic issues and protect the drive.

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Frequently asked questions

What is the primary function of the Siemens 4EP4000-6US mains choke?

The Siemens 4EP4000-6US mains choke functions to reduce harmonic distortion and protect frequency converters from line noise and voltage fluctuations. It helps ensure stable and efficient operation of the connected drive system.