dv/dt filters compact plus VPL (Voltage Peak Limiter) limit the voltage rate-of-rise dv/dt to values < 1600 V/Ојs and the typical voltage peaks to the following values according to limit value curve A to IEC 60034‑25: 2007:

• < 1150 V at U_line < 575 V
• < 1400 V at 660 V < U_line < 690 V

Standard motors with standard insulation and without insulated bearings can be used for inverter operation if a dv/dt filter compact plus VPL is used.

dv/dt filters compact plus VPL are designed for the following maximum motor cable lengths:

• Shielded cables: 100 m (328 ft) (e.g. Protodur NYCWY)
• Unshielded cables: 150 m (492 ft) (e.g. Protodur NYY)

For longer cable lengths (> 100 m (328 ft) shielded, > 150 m (492 ft) unshielded) refer to dv/dt filter plus VPL.

Note:

• The max. permissible cable length between the dv/dt filter and Power Module is 5 m (16.41 ft).
• Operation with output frequencies <10 Hz is permissible for max. 5 min.