Dv/dt filters
Protect motors against high voltage increases and voltage peaks at motor terminals

Our dv/dt filters protect motors against high voltage increases and voltage peaks at motor terminals.
Since modern motor solutions consist of variable speed drives (VSD), dv/dt filters are a vital system component. Dv/dt filters allow longer motor cables and are a central element for retrofitting actions. With dv/dt filters, the voltage has still a pulse shaped wave form, though the current is sinusoidal. Due to their lower reactor and capacitor values, generally dv/dt output filters are smaller and lighter in weight than sine wave filters.
Capabilities
- Phases: 1 and 3
- Current range: up to 5 kA
- Short circuit current withstand: up to 50 kA
- Voltage range: up to 36 kV
- Fundamental frequency: up to 1 kHz
- Switching frequency: up to 20 kHz
- Insulation classes: 180 / 200 / 220
- Protection class: up to IP67 and NEMA 6/6P
- Cooling methods: AN, AF, WD