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Siemens 3-Phase MAINS CHOKE - 480V, 819A

Siemens 3-Phase MAINS CHOKE for FU applications, 480V, 819A.

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ManufacturerSiemens

Part number4EU3951-1UB00-0A

Phases 3

UN1(V) 480

ITHMAX 1(A) / F1(HZ) 910 / 60

I LN (A) 819

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CAGE: 9NK75

3-Phase Operation 480V Input Voltage 819A Continuous Current 910A Short-term Current UL/CSA-Recognized Reduces Harmonics

Product description

The Siemens 4EU3951-1UB00-0A is a three-phase mains choke designed for use in frequency converter (FU) applications. It features an input voltage rating of 480V, a continuous current rating of 819A (I LN), and a maximum short-term current of 910A (ITHMAX). The choke has an impedance of 4% (UK) and an inductance of 0.031 mH (LN).

This component is crucial for reducing harmonic distortion and improving power quality in industrial motor drives and frequency converter systems. It helps protect sensitive equipment from voltage fluctuations and electrical noise, ensuring reliable operation in demanding environments. Applications are found in heavy industry, manufacturing, and power generation.

Stanlo Automation, a veteran-owned distributor, offers the Siemens 4EU3951-1UB00-0A mains choke. Secure this vital component for your power quality needs from a trusted source that understands industrial requirements.

Technical specifications

Phases	3
UN1(V)	480
ITHMAX 1(A) / F1(HZ)	910 / 60
I LN (A)	819
UK(%)	4
LN(MH)	0.031
TA/ISOKL	40 / H
IP Rating	IP00
Terminals	Flat-type

Common applications

Frequency Converter Systems

Motor Drives

Power Factor Correction

Industrial Power Distribution

Harmonic Filtering

Machine Control

Compatible systems

Frequency Converters Industrial Motor Control Power Distribution Units

Also known as

Siemens Line Choke 4EU39511UB000A FU Mains Choke

Replaces / compatible with

This mains choke is designed for specific frequency converter applications. For compatibility with other systems, consult the Siemens industrial automation catalog.

Technical note

Expert tip

Ensure proper ventilation as the IP00 rating indicates no protection against ingress, and the 40°C ambient temperature limit (TA) should be observed.

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Frequently asked questions

What is the purpose of the Siemens 4EU3951-1UB00-0A MAINS CHOKE?

The Siemens 4EU3951-1UB00-0A MAINS CHOKE is used in frequency converter (FU) applications to reduce harmonic distortion and improve power quality. It helps protect equipment by smoothing out current and voltage fluctuations.