Siemens 6SE6400-3CC00-6AD3
Siemens 6SE6400-3CC00-6AD3
Siemens 6SE6400-3CC00-6AD3
Siemens 6SE6400-3CC00-6AD3
Siemens 6SE6400-3CC00-6AD3
Siemens 6SE6400-3CC00-6AD3
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6SE6400-3CC00-6AD3

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The 6SE6400-3CC00-6AD3 is a Siemens MICROMASTER 4 AC commutating choke for 380-480V 3-phase drives, rated at 4.8A, with 1.53 mH inductance, IP20, and footprint FSA.
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Technical specifications for 6SE6400-3CC00-6AD3

  • Manufacturer:
    Siemens
  • Part Number:
    6SE6400-3CC00-6AD3
  • Product Family:
    Siemens SINAMICS
  • Product Type:
    Commutating Choke
  • Number of Phases:
    3 AC
  • Input Voltage Range:
    380...480V AC
  • Rated Output Current:
    4.8 A
  • Inductance:
    1.53 mH
  • Power Loss (50 Hz):
    7.5 W
  • Power Loss (60 Hz):
    9 W
  • Protection Class:
    IP20
  • Connectable Conductor (Mains):
    3 x AWG16 / 1.5 mm²
  • PE Connection:
    M5 stud bolt
  • Approvals:
    cURus
  • Weight:
    1.4 kg
  • Estimated shipping dimensions:
    22.5x7.5x5cm
  • Tariff Code:
    8504500000
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Diagnosis and Protection Installation and Upgrade

Features:

  • Smoothes drive input current, reducing THD, improving power factor, and protecting upstream transformers and breakers.
  • Designed for direct mounting adjacent to MICROMASTER 4 FSA drives; IP20 enclosure.
  • Approved for North American installations; screw terminals for easy wiring; M5 stud bolt for PE connection.
Variable frequency drives (VFDs) use a diode bridge rectifier to convert AC to DC. This rectifier draws current in short, high‑amplitude pulses – not a smooth sine wave. These pulses cause harmonic distortion in the AC line current, leading to overheating of transformers, nuisance tripping of circuit breakers, distortion of voltage waveform, and interference with other sensitive equipment. The 6SE6400-3CC00-6AD3 is a line commutating choke (also called a line reactor) that installs between the AC supply and the drive input. Its 1.53 mH inductance opposes rapid changes in current, smoothing the rectifier pulses into a more sinusoidal waveform. This reduces the total harmonic distortion (THD) of the input current, typically from over 100% to around 40-50% (depending on load).

The PE (protective earth) connection is an M5 stud bolt, providing a secure, low‑impedance ground path. The screw‑type terminals accept 3 x AWG16 (1.5 mm²) stranded wire, which matches typical VFD input wiring. The maximum cable length on the load side (from choke to drive) is 0.38 m, meaning the choke should be placed close to the drive. For engineers retrofitting harmonic mitigation to an existing MICROMASTER 4 installation, this choke fits seamlessly into the existing mechanical layout.

For drive systems installed in North America, UL or cURus certification is often mandatory. The 6SE6400-3CC00-6AD3 carries cURus approval, meaning it has been tested and certified for use in the US and Canadian markets. This simplifies compliance with local electrical codes (NEC, CEC) and reduces the burden of field approval. The certification covers the electrical insulation, thermal performance, and construction safety. The choke’s IP20 protection class requires installation inside a control cabinet to prevent accidental contact. The screw terminals are designed for copper conductors only (AWG16 / 1.5 mm²).

The 6SE6400-3CC00-6AD3 Siemens Commutating Choke may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

Siemens 6SE6400-3CC00-6AD3 Commutating Choke Manuals, Datasheets,Drivers,Link Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
Siemens 6SE6400-3CC00-6AD3 Commutating Choke Specs

General

  • Manufacturer Siemens
  • Model 6SE6400-3CC00-6AD3
  • Condition New Original ready stock
  • Product Family 6SE6400-3CC00-2AD3,6SE6400-3CC00-8AD3,6SE6400-3TC00-4AD2
Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
  • Inverter Front-End Protection: Installed at the power input of the inverter to suppress voltage spikes and surges from the power grid.
  • Harmonic Interference Reduction: Significantly reduces low-frequency harmonics (especially the 5th and 7th harmonics) generated by the inverter, preventing interference with other sensitive equipment (such as PLCs and sensors) on the same power grid.
  • Extended Equipment Lifespan: By smoothing the input current, it reduces the load on the inverter's internal rectifier bridge and DC intermediate circuit capacitors, extending component lifespan.
  • Overvoltage Protection: Prevents the inverter from reporting a "F0002 (DC Link Overvoltage)" fault when the power grid experiences voltage surges due to switching operations or lightning strikes.
  • Overcurrent Buffer: Limits the peak input current during power grid transients and recovery or drastic load changes, preventing the inverter's overcurrent protection (F0001) from being triggered.
  • Heat Check: If the reactor temperature rises abnormally during operation, it usually indicates extremely high harmonic content in the power grid or overload.
  • Input Voltage Range: 200V to 280V AC.
  • Rated Current: Requires a frequency converter with appropriate power (e.g., MICROMASTER 420/440).Good grounding (PE) must be ensured for optimal shielding and filtering.
  • Compatibility: If you are upgrading an older system, please confirm the frequency converter's dimensions (FSA specification).
Description
The 6SE6400-3CC00-6AD3 is a line commutating choke designed for MICROMASTER 4 and SINAMICS V20 drives. It operates on 3-phase 380-480V AC at 50/60 Hz. The choke has a rated output current of 4.8 A and an inductance of 1.53 mH. 

When using the 6SE6400-3CC00-6AD3, engineers can reduce harmonic distortion in the drive input current. The choke smoothes the rectifier current waveform, lowering total harmonic distortion (THD) and improving power factor. It also protects the drive from line voltage spikes and transients. 

The 6SE6400-3CC00-6AD3 has a power loss of 7.5 W at 50 Hz and 9 W at 60 Hz. It is UL/cURus certified for North American installations. The choke is specifically sized for MICROMASTER 4 FSA (Frame Size A) drives and is also compatible with SINAMICS V20 drives of similar power ratings.

For legacy MICROMASTER 4 system installations requiring harmonic mitigation, the 6SE6400-3CC00-6AD3 provides a direct-mount choke solution. It installs between the AC line supply and the drive input. The compact dimensions allow mounting adjacent to the drive. 
Alternative Names
6SE6400-3CC00-2AD3 6SE6400-3CC00-8AD3 6SE6400-3TC00-4AD2 6SE64OO-3CCOO-6AD3
Technical notes
The 6SE6400-3CC00-6AD3 is a 3‑phase line commutating choke (also called a line reactor or AC choke). It is installed between the AC mains supply and the drive input. Its primary function is to reduce harmonic distortion in the input current, protecting the upstream power system.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Does 6SE6400-3CC00-6AD3 reduce harmonics?
Yes. The 6SE6400-3CC00-6AD3 line choke smooths the rectifier current pulses, lowering total harmonic distortion (THD) and reducing voltage distortion. This prevents transformer overheating, nuisance breaker trips, and interference with sensitive equipment. It helps meet IEEE 519 compliance.
Which drives work with 6SE6400-3CC00-6AD3?
The choke is designed for MICROMASTER 4 FSA (Frame Size A) drives. It is also compatible with SINAMICS V20 drives of similar power rating. Note: It is NOT suitable for V20 footprint FSA. Always verify the drive’s input current rating does not exceed 4.8A.
How much heat does 6SE6400-3CC00-6AD3 dissipate?
The choke dissipates 7.5 W at 50 Hz and 9 W at 60 Hz. This is relatively low heat, but it must be mounted with adequate airflow. The IP20 enclosure requires installation inside a control cabinet. Ensure no flammable materials are near the choke.
What wire connections does 6SE6400-3CC00-6AD3 require?
The choke has screw-type terminals for mains connection accepting 3 x AWG16 (1.5 mm²) stranded wire. The PE (protective earth) connection is an M5 stud bolt. The maximum cable length on the load side (to the drive) is 0.38 meters. Use appropriate ferrules for stranded wire.