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Products / AC Drives / AC Drive Accessories / V1K DV/DT Filters
V1K DV/DT Filters

V1K DV/DT Filters

1 - 250HP, 208/240V, 480V, 600V, CHASSIS MOUNT & NEMA 1

Quick Specs

  • HP 1 - 250
  • VOLTAGE 208/240V, 480V, 600V, 50/60Hz
  • ENCLOSURE Chassis Mount (Open) and UL Type 1 (NEMA 1)

Product Overview

The V1k dv/dt motor protection filter is an output device that prevents voltage spikes from variable frequency drives (VFD) from exceeding 1000V for long lead applications at 480VAC and 1300V for 600VAC. The V1K minimizes these voltage wave amplitudes and slows the rate of voltage increases.

As Pulse Width Modulated (PWM) Drives are incorporated into various applications and processes, the increased energy savings and decreased maintenance on drives can be offset by increases in motor failures. The V1k product family has been designed as an engineered solution for motor failures due to the reflected wave phenomenon.


  • Limits voltage spikes to below 1000V for applications with lead lengths up to 1,000 ft
  • Reduces motor heating, noise and vibration
  • Greatly extends the life of the motor and cable
  • Specific applications can reach 3,000 feet
  • Prevents motor failure with protection against motor insulation breakdown
  • Reduces Common Mode by a minimum of 30%
  • Improves system productivity by increasing motor bearing life
  • 208/240VAC, 480VAC, 600VAC system compatibility
  • 2 - 305 Amps range
  • Carrier Frequency: 1 - 12 kHz
  • Fundamental Frequency: 0 - 60 Hz (consult factory for applications over 6 kHz and/or 60 - 120 Hz fundamental if the cable lengths don't exceed 400 feet)
  • Efficiency: > 98%
  • Insulation Rating: 600V Class
  • Insulation Class: Class H (180°C) or Class R (220°C)
  • Ambient Temperature: 40° C
  • Maximum Altitude: 2,000 meters (6,000 feet)
  • Derating necessary above 2,000 meters
  • Agency Approvals: cUL, UL
  • Enclosures: Open, UL Type 1
  • Lead Length: Specific applications can reach 3,000 feet (consult factory for applications above 1,500 feet)

Models & Pricing