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Power Factor Controller FCR06 & FCR12

The power factor controllers FCR06 and FCR12 are well proven controllers for LV and MV applications as well as for fast and hybrid thyristor power factor correction applications. The power factor controllers FCR06 and FCR12 offer advanced functionality, the automatic detection of measuring circuits and capacitor steps, three-phase current measurement, and also reliability and design for the hardest conditions.

FCR06 & FCR12
  • 4 quadrant measurement and regulation
  • three regulation methods (APFR default)
  • ready for classic, dynamic and hybrid PFC
  • monitoring of U, I, P, Q, S, cosφ, THDU, THDI,
  • monitoring of odd harm. of U and I till 19th order
  • thyristor control speed up to 25 operations in 1 s
  • 6 or 12 regulated outputs
  • ready for de-compensation PFC
  • automatic detection of measuring circuit
  • independent alarm output
  • high sensitivity of current sensing (3 mA)
  • monitoring of switching operations and step operation time
  • communication interface RS485
  • communication protocol Modbus RTU
  • panel mounting design 144 x144 mm
  • SW Power Monitoring System


Device digitizes measured phase voltage and current in one phase. Then, from those values, parameters like: power factor, effective values of voltage and current, apparent power and reactive power, are calculated. With consideration of requested cosφ it calculated need compensation power. According to its size, regulator switches on or off appropriate capacitor stages.

Within the scope of each power level, regulator uses method of circle switching. All the time connects this stage at appropriate power level which was switched off for longest time. Everything is made so that regulator will reach optimal compensation in one regulation cycle with minimum number of switched stages.


Power factor controllers FCR06 and FCR12 have several alarms which are adjustable by level, min time of event, action on regulated steps etc. Special alarm from temperature is able to control forced ventilation of PFC and protect capacitor steps against higher temperature.


The controllers FCR06 and FCR12 have features for smart de-compensation with several reactor steps operating in a similar way as capacitor steps or only one reactor that is tuned by capacitor steps.

Cascade operation of two controllers

Two controllers in variant C can be connected together to expand the number of controlled steps or substitute for each other in a system with two main power supplies. Any one of controllers can behave as a master or slave.


Thanks for software Power Monitor System is possible controllers with RS485 easily configured and also use for monitoring of PFC systems.

Technical features

Parameter Value
supply voltage 400 V AC 50 Hz (+10%, -20%)
measuring voltage
400 V AC 50 Hz (+10%, -20%)
system frequency 50 / 60 Hz
measuring current range 0.003 ... 5.3 A
self consumption
10 VA
number of regulated outputs 6 or 12
alarm output 250 VAC / 5A
output contacts load 250 VAC / 5A
range of regulated PF 0.8 ind. ... 0.8 cap.
reconnection delay: semiconductor / contactor steps 0 s / 5 ... 600 s
disconnection delay: semiconductor / contactor steps 0 s / 5 ... 600 s
capacitor step settings manually / automatically
ambient temperature -25°C ... +70°C
front panel 144 x 144 mm
panel cutout 138 x 138 mm
side depth 55 mm
weight 1.5 kg
protection degree
IP20 read side / IP54 front panel


BMR trading - Hasal s.r.o.
Horní lán 1200/17
779 00 Olomouc
Czech Republic

+420 778 066 566