Three-phase motor reactors ED3S

Motor reactors have higher inductance than dv/dt limiting reactors thus they effectiveness in voltage steepness and peak value reduction is much better. ED3S reactors are a good choice when medium motor cables are used and protection against EMC disturbances is important for the application. 
Benefits Application
  • Reduction of the steepness of voltage rise dv/dt
  • Limitation of the amplitude of the overvoltage at the motor terminals
  • Decrease in motor temperature
  • Increase in reliability and motor lifetime
  • Decrease of motor noise and EMC disturbances
  • AC drive systems with frequency converters
  • AC motors with lowered insulation strength
  • Motor cables of medium length

Special execution
Products with parameters exceeding the catalogue card can be made upon prior contact

Download catalog card in PDF

Product for:


Rated current 6-2250 A
Rated voltage

380 - 500 V

Rated frequency 50/60 Hz
Switching frequency ≥2kHz
Overloadability 110% In (continuous)
160% In 1 min/h (momentary)
Cooling AN – air natural
Ambient temperature 40°C – standard design
45°C – maritime design
≥50°C – special design
Insulation class F (155°C)
Winding material Aluminium, copper
Standard equipment NC temperature switch 
Mounting standing, vertical
Degree of protection IP00, klasa I
Applied standards PN-EN 61558-20,
PN-EN 60076-6

*- UL approved insulation system

Typical application diagram

Obudowa leżąca IP 23 dla urządzeń trójfazowych

for horizontal mounting IP23

Obudowa naścienna IP 23 dla urządzeń trójfazowych

wall mounted IP23

Obudowa stojąca IP 23 dla urządzeń trójfazowych

for vertical mounting IP23

Obudowa stojąca IP 44 dla urządzeń trójfazowych

vertical design IP44

Obudowa stojąca IP 54 dla urządzeń trójfazowych

vertical design IP54

Mirosław Łukiewski,
Jarosław Czornik
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