A line reactor is an inductor which is wired in series between a power source and a load. Line reactors, also called input AC reactors, are generally used in motor drive applications.

The main function of this KOSED component lies into its current limiting characteristics. Line reactors also reduce the main harmonics, limit the inrush currents and protect variable frequency drives (VFD) and motors. An overall improvement of the true power factor and the quality of the input current waveform can be achieved. Besides many other high demanding functions, KOSED custom-made line reactors are used as second harmonic filters in traction rolling stock applications.


Three-phase Line Reactor for Motor Drive & Power Quality Performance.

  • Reducing cross-talk between drives
  • Prevent fuses and circuit breakers from blowing or tripping due to high current spikes
  • Provide needed impedance between VFD’s and power system capacitors
  • Protection of capacitors and other power system components from harmonic resonance
  • Reducing the amount of high frequency noise injected into the power system.
  • Increased reliability and life span of the VFD
  • Provide some protection against overvoltage trips
  • A cost-effective solution to reduce harmonic distortion
Protection category

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Rated current
Insulation class

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440 Volts, 50/60 Hz (Open type)

This price is not exact. only awareness. Thank you.

CodeTypeRatingsInductance (mH)Current (A)Net ($)Availability
1 AC Line Reactor440 Volts, 50/60 Hz6.54$27Upon Request
2AC Line Reactor440 Volts, 50/60 Hz4.06$32Upon Request
3AC Line Reactor440 Volts, 50/60 Hz4.07$33Upon Request
4AC Line Reactor440 Volts, 50/60 Hz1.88$35Upon Request
5AC Line Reactor440 Volts, 50/60 Hz1.410$41Upon Request
6AC Line Reactor440 Volts, 50/60 Hz1.212$55Upon Request
7AC Line Reactor440 Volts, 50/60 Hz1.222Upon Request
8AC Line Reactor440 Volts, 50/60 Hz2.035Upon Request
9AC Line Reactor440 Volts, 50/60 Hz1.440Upon Request
10AC Line Reactor440 Volts, 50/60 Hz1.265Upon Request