Motor Protection

Enerdoor developed the Motor Protection series to protect motors from harmful overvoltage and dV/dt spikes.

Motor Protection

Enerdoor developed the Motor Protection series to protect motors from harmful overvoltage and dV/dt spikes generated on the output. This is particularly useful for applications with variable frequency drives and servo-motors. 

This series includes common mode and differential mode inductances, sine wave filters and snubbers designed to work with various frequency switches, output frequencies and applications.  

The sine wave filter series reduces the pulse wave modulation (PWM) effect, converts the PWM to a sine wave and reduces dV/dt. The FIN915SF model is used with fundamental frequencies up to 2 kHz. The high frequency inductance FIN960F is a unique solution used for synchronous spindle motor applications.

Browse Motor Protections

FIN930 Output Filter
  • Common mode impedance
  • Rated currents from 10 - 200A
  • Nominal voltage 600 Vac
  • Low impedance
  • Reduces dV/dt from inverter - motor
  • Long motor life
FIN950U Load Reactor Filter
  • Nominal voltage 480 Vac
  • Frequency range 50 - 60 Hz
  • Insulation class H
  • Max current frequency 100 Hz
FIN5955 Output Filter
  • Differential mode impedance
  • Rated currents from 3 - 20A
  • Nominal voltage 600 Vac
  • Low power loss up to 250 Hz frequency output
  • Protects against voltage spikes to the motor
FIN958 Output Filter
  • Rated current from 12 to 110A
  • Protects against voltage spikes to the motor
  • Low power loss up to 1 kHz frequency output
FIN5980P Output Filter
  • Rated currents from 9 - 110A
  • Nominal voltage 600 Vac
  • Differential mode impedance
  • Eliminates dV/dt
  • Overvoltage spikes regenerate into the DC bus
FIN960F Output Filter
  • Rated currents from 7 - 500A
  • Nominal voltage 750 Vac
  • High frequency application
  • Synchronous electrosplindle application
  • No heating on the core
  • High linearity versus frequency
FINSTP Star Point Snubber
  • Nominal voltage 600 Vac 
  • Reduces dV/dt 
  • Very low power loss 
  • Easy installation
FINTR Toroid and FINFE Ferrite
  • Ferrite core
  • Rated available in different sizes
  • Very high permeability ferrite
  • Plastic cover protection
FIN915SFH High Frequency Sine Wave Filter
  • Currents rated from 8 - 250A
  • Nominal voltage 480 Vac
  • Reduces dV/dt
  • Increases motor life
  • Very low heating for high frequency application
FIN905SF Sine Wave Filter
  • Three phase sinusoidal filter
  • Rated current from 8 - 880A
  • Nominal voltage 480 Vac
  • Reduces dV/dt
  • Increases motor life
FIN5983 Output Filter
  • Rated currents from 12 - 60A
  • Nominal voltage 600 Vac
  • Differential mode impedance
  • Eliminates dV/dt
  • Footprint with drives manufacturers
FIN47SNB Snubber dV/dt Filter
  • Reduces dV/dT
  • Remote contact indicator
  • Compact dimensions due to the parallel installation
  • Nominal voltage 0 - 500 Vac
  • Frequency range 50 - 60 Hz
FIN900 Output Filter
  • Common mode impedance
  • Rated currents from 10 - 280A
  • Nominal voltage 500 Vac
  • High impedance
  • Reduces high frequency interference (PWM)
  • Cable/ screw connections available

Previous Category

Next Category

Full Page