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OPTIM FRE6-500-440


Code: R64J35.

  •  Cable section (mm2): 2×240
  •  Nr steps: 5
  •  kvar (400 V): 413
  •  kvar (440 V): 500
  •  Optional circuit breaker (A) : 1000
  •  Optional manual switch (A): 1000
  •  Composition: 5 x 100
  •  Use voltage (V): 440

The capacitor banks with detuned filters of the OPTIM FRE series have been designed for reactive energy correction in networks with fluctuating load levels, high harmonic presence and a risk of resonance.

The power variations are relatively quick (measured in milliseconds), and the operation is thus carried out by thyristors, which are connected to a voltage controller board, so that the connection and disconnection of the capacitor is carried out with zero voltage difference. Transients are prevented between the connection and disconnection of the steps, obtaining an immediate response to the load fluctuations.



The most common application is with individual loads or in installations where a quick compensation response is needed (e.g. welding units, motors for lifting units, lifts, etc.) and where the network has high harmonic content.

Losses (W) < 0,5 W/kvar
Discharge resistance 75 V / 3 min
Surge 10 % 8 h over 24 h 15 % up to 15 min over 24 hours 20 % up to 5 min over 24 hours 30 % up to 1 min over 24 hours
Reinforcement voltage 440 V
Tolerance C -5% / 10 %
Voltage 400 V (50 Hz) (other voltages on request)
Size (mm) width x height x depth 1200 x 1900 x 650 (mm)
Envelope Sheet metal RAL 7035 Grey / RAL 3005 Garnet
Fastening Vertical / Self-supporting
Ventilation Natural or forced according to options
Weight (kg) 440
Protection class Marked on the label
Relative humidity (without condensation) 80%
Operating temperature Tª class D: Daily average: 45 ºC, annual average: 35 ºC, maximum: 55 ºC, minimum: -50 ºC
Permanent overload 1,3 In
Transformation ratio In / 5A
Electrical safety, Maximum height (m) 2000 m
Standards UNE-EN 61921, UNE-EN 61439-1, UNE EN 60831
Components CLZ capacitor Static switching unit on each stage, made up of static contactors (thyristors) Two-pole circuit breaker protection for capacitor bank and regulator operations. Reactive energy regulator of the Computer MAX-f Built-in thermostat on the heatsink for disconnecting the stage in the case of excessive temperatures (90 ºC) Detuned filters tuned to 189 Hz for protection against harmonics present in the network and for preventing resonance with harmonics of the 5th order or higher.
Optional Manual switch on capacitor bank header Circuit breaker on capacitor bank header Circuit breaker + earth leakage protection on capacitor bank header Forced ventilation unit + thermostat Polycarbonate sheet for protection against direct contacts 400/230 V autotransformer
Element Protection by stage by fuses with high cut-off power (APR). NH-00 series.