DU/dt filters
DU/dt filters are used for filtering voltage increase rate and voltage peak value in motor input. With Trafox DU/dt filters, lengths up to 100–300 m can be reached, facilitating even the most demanding installations. The extensive standard selection of different current ranges ensures an optimal filter choice.
The features, dimensions, structure and mounting options of the filters can be tailored according to the customer’s objectives and needs.
Additional information:
Technical data
| Operating voltage range: | 3 x 200–690 Vac ±10% |
| Motor frequency: | – 0–70 Hz without derating |
| – 70–320 Hz with derating | |
| Maximum switching frequency: | 4 kHz |
| Typical voltage spike: | 50% of DC link voltage |
| Voltage loss: | < 5V at nominal current |
| Ambient temperature: | -20–40°C in operation |
| Storage temperature: | -20–70°C |
| Humidity: | <95 % RH, no condensation |
| Overload capacity: | 1.5 x rated current for 1 min, once per 60 min |
| Insulation class: | H 180°C |
| Flammability of materials: | UL 94 |
| Standard: | EN 61558-2-20 |
| Protection class: | IP00 |
| Regulatory compliance: | LVD 2006/95/EC |
| Certifications: | CE, UL/ur, ROHS |