The realization of the three-phase CMR capacitors is done using single-phase capacitors of our MFA series in an aluminum case equipped with an overpressure protection device, with a dielectric in metallized polypropylene film and a non-toxic biodegradable filler.

The CMR series capacitor case is made of self-extinguishing thermoplastic material, provided with special holes for natural ventilation and retains the characteristic of modularity, the connection to the network is via M8 terminals.

The CMR series three-phase capacitor is realized in the 4 voltage ranges 230 Vac – 400 Vac – 440 Vac – 500 Vac.


Dielectric Metallized polypropylene film
Rated frequency 50 Hz
Power tolerance -5% + 10%
Dielectric losses < 0,30 W/KVAr
Working ambient temperature -25°C + 45°C
Max over voltage 1,1 Un (according to IEC)
Max over current 1,3 In
Max inrush current 100 In
AC test voltage between terminals 2,15 Un for 2 sec.
AC test voltage between case/terminals 3 kV for 10 sec.
Insulation level 3/15 KV
Discharge resistors Included
Discharge time < 3 minutes with residual voltage 75V
Internal connection Delta three-phase
Safety device Internal overpressure disconnector
Terminals M8 screw
Filling Oil filling, without PCB
Service type Continuous, indoor
Protection degree IP 40
Mounting position Vertical preferable for better cooling
Permissible humidity 95%
Service life 60.000 hours
Reference standards CEI EN 60831-1/2 IEC 831-1/2

CMR 230 series

230 Vac  50 Hz
Capacitors MFA 230 Vac 50 Hz

CMR 400 series

400 Vac  50 Hz
Capacitors MFA 440 Vac 50 Hz

CMR 440 series

400 Vac  50 Hz
Capacitors MFA 500 Vac 50 Hz

CMR 500 series

400 Vac  50 Hz Capacitors MFA 550 Vac 50 Hz