Features:
- Limits voltage spikes to below 1,000 V for applications with lead lengths up to 1,000 ft on 480 V systems.
- Reduces motor heating, noise and vibration.
- Prevents motor failure with protection against motor insulation breakdown.
- Reduces Common Mode by a minimum of 30%.
Typical VFD/Motor Applications:
- Submersible pumps
- Wastewater pumping stations
- HVAC cooling systems
- Process automation facilities
- Agriculture irrigation systems
Peak voltages on a 480 V system can reach 1,600 V, and on a 600 V system can reach 2,100 V. These high peak voltages will cause a rapid breakdown of motor insulation, leading to motor failure. The V1K dV/dt filter is an output device that prevents voltage spikes from variable frequency drives (VFD) from exceeding 1,000 V. The V1K minimizes these voltage wave amplitudes and slows the rate of voltage increases.
Reflective Wave Phenomenon Voltage wave reflection is a function of the voltage rise time (dV/dt) and the length of the motor cables. If the impedance on either end of the cable run does not match, the voltage pulses will be reflected back in the direction from which it arrived. As these reflected waves encounter other waves, their values add, causing higher peak voltage. As wire length or carrier frequency increases, the overshoot peak voltage also increases. V1K dV/dt filter reduces these peak voltages to prevent damage to motors and cables.
For more information, please see 
Data Sheet and Drawing
