SD VFD Chassis front view
DV Series

dV/dt Output Filters

9 - 480 A | 480 V | Open, NEMA 1, and NEMA 3R

  • Extends the life of a motor, bearings, and cable
  • Superior peak voltage protection limits voltage spikes
  • Distributed gap alloy powder core
  • Recommended lead length 50 - 800'
  • Manufactured, assembled, and tested in the U.S.

Uncommon Value in Motor Protection

Phase Technologies is pleased to offer the DV Series dV/dt filter for long lead motor applications.

Phase Technologies DV Series output filters are designed with distributed gap alloy powder cores resulting in superior peak voltage reduction, lower core losses, higher temperature stability, and a more compact product envelope.

The DV Series output filters are completely manufactured in the U.S. using our vertically integrated manufacturing processes include: coil winding, varnishing, sheet metal enclosure fabrication, fully automated wire processing center, advanced printed circuit board assembly line, and UL508A custom panel shop.

All stand alone output filters are tested and certified to the UL508 standard.

dv SERIES NEMA 3R dV/dt filter

Standard PWM waveform
dV/dt PWM waveform


DV Series

Contact our sales department for terms and pricing on DV Series motor protection filters.

Contact sales