3-Phase Line Reactors RWK3044

3-phase Line Reactor to reduce mains disturbances at 400 V


3-phase Line Reactor to reduce mains disturbances at 400 V

  • 4% 3-phase line reactor for 400 V network
  • Reducing harmonics on the mains side
  • Reducing commutation notches
  • Limiting inrush current
  • Reliable and economical solution for mitigating mains disturbances

Features and Benefits

Ensure reliability, performance and a long service life of electrical consumers
Reduction of mains harmonics and commutation notches
Help to meet international power quality standards 
Protection of motor drive electronics and dc link capacitors against mains transients
Reduction of inrush and peak currents
Improvement of conducted LF immunity
Prevention from nuisance tripping caused by power line voltage spikes
Improvement of true power factor

Typical Applications

Motor drives and various adjustable speed drive systems, such as:
Process automation equipment

Technical Specifications

Maximum continuous operating voltage

3x340 to 530 VAC

Nominal operating voltage

3x380 to 480 VAC

Rated currents

1.76 to 1010 A @ 45°C

Overload capability

1.6x rated current for 1 minute, once per hour


4% @ 400 V, 50 Hz and rated rms current

High potential test voltage

P -> P 3030 VAC, 1 s

P -> E 3030 VAC, 1 s

Earthing system


Overvoltage category

OV III (IEC 60664-1 / UL 61800-5-1)

Pollution degree


Temperature range (operation and storage)

-40°C to +45°C fully operational

+45°C to +100°C derated operation*

-40°C to +100°C transport and storage

Climatic category

40/100/21 (IEC 60068-1)


Natural cooling AN

Protection category

IP 00

Flammability corresponding to

UL 94 V-2

Design corresponding to

UL 61800-5-1, EN 61558-2-20, EN 60076-6

Insulation class

UL electrical insulation system SCH-200(N)

Lifetime (calculated)

20 years

* derating according NEC 310-15(C), Iderated = Inominal*SQRT((Tmax-Tamb)/(Tmax-Tnominal)) = Inominal*SQRT((100°C-Tamb)/55°C)

Typical electrical schematic


Approvals & Compliances

CE Label
UKCA Label
RoHS Label
UL Recognized Label (USA)

(UL recognized up to 640 A)