Category: Our partners

Private Joint Stock Company “DEG” is the official representative of “Zakład Energoelektroniki “TWERD” Sp. z o.o. – a polish manufacturer of advanced power electronics with more than 30 years of experience, and offer:

  • frequency converters:

– 1-phase supply voltage 230 V, 50 Hz, power 0,37-3,0 kW;
– 3-phase supply voltages of 400, 500, 690 V, power up to 500 kW, available with energy recovery into the network;
– modular three-level, with liquid cooling, for a voltage of 1140 V with a power of 55-800 kW, available with energy recovery into the network;;

  • inverters for renewable energy;
  • inverters and DC chargers for fast charging electric vehicles.

Z.E.TWERD equipment is widely used in explosion-proof electrical equipment manufactured by our company.

We supply equipment directly from the manufacturer with a subsequent warranty.

More detailed technical information about Z.E.TWERD equipment you can find at the website: or by phone: