Inductors and Reactors

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Build configurations and capabilities

Inductor / Reactor Types

  • Current-Limiting Reactor
  • Neutral-Grounding Reactor
  • Smoothing Reactor
  • Harmonic-Filter Reactor
  • Saturable Reactor
  • Dampening Reactor
  • Motor Starting Reactor
  • Pancake Reactor
  • Air-Core Inductor

Electrical Characteristics

Power rating=500 VArup to 250 kVAr

Phases=1-Phase, 3-Phase

Frequency=50 Hz and/or 60 Hz, 400 Hz up to 20,000 Hz

Voltages=up to 600 Vrms up to 34.5 kVrms

Terminal Configurations

Copper buss bar

Silicon bronze hardware

Ring-lug compatibility

Enclosures and weather

NEMA enclosures

NEMA 1: General purpose

NEMA 3: Weather-resistant (falling dirt, windblown dust, rain, sleet, snow, formation of ice)

NEMA 3R: Same as 3, omits protection against windblown dust

NEMA 4: Watertight

NEMA 4X: Same as 4, but stainless steel

NEMA 6: Submersible

Examples of Inductors and Reactors

140uHy Air Core Inductor

140 uHy Air-Core Inductor


Current=5,250 Arms

Output=480V @ 193A

NEMA3R enclosure

146 uHy Iron-Core Inductor

146 uHy Iron-Core Inductor

3-Phase, 60Hz

Voltage=480 Vrms L-L

Current=400 Arms

NRTL to UL 506