Motor Protection

Safeguarding Motors from Overvoltage and dV/dt Spikes

Safeguarding Motors from Overvoltage and dV/dt Spikes

Motor Protection

Experience unparalleled motor protection with Enerdoor's dedicated series, shielding motors from detrimental overvoltage and dV/dt spikes originating from the drive's output. Essential for applications involving variable frequency drives, servo drives, and long cable setups, these output filters are engineered to seamlessly collaborate with diverse carrier frequencies, output frequencies, and applications. The comprehensive range includes load reactors (differential mode inductance), chokes (common mode inductance), sine wave filters, snubbers, and dV/dt filters.

Key Features of Enerdoor Motor Protection Series:

  1. Certifications and Approvals: CE and UL approvals ensure compliance with international standards, guaranteeing the reliability and safety of your motor protection setup.

  2. Wide Current Range: Offering a current range from 3 to 1100A, our motor protection series is versatile and adaptable to various motor applications.

  3. Unique Attributes:

    • High linearity vs frequency and current
    • Very low operating temperatures
    • Compact dimensions for efficient space utilization

Benefits of Enerdoor Motor Protection:

  • Prolonged Motor Life: Increase the lifespan of your motors, safeguarding windings, insulation, and bearings.
  • Protection Against Voltage Spikes: Shield motors from damaging voltage spikes, ensuring uninterrupted operation.
  • Reduced Repairs and Downtime: Minimize frequent motor repairs, reducing production downtime and improving overall efficiency.
  • Tailored for High-Speed Applications: Unique solutions catering to the demands of high-speed motor applications.

Compliance and Performance:

  • Pass European Emission Standards: Ensuring compliance with European emission standards, our motor protection series is a reliable choice.
  • Prevent EMC Noncompliance: Mitigate EMC noncompliance risks by reducing radiated emissions from motor cables.
  • Temperature Control: Efficiently reduce motor temperature with minimal power loss, contributing to sustained performance.

For more information and to explore the benefits of Enerdoor's Motor Protection Series, visit our dedicated Motor Protection Application page. Your motors deserve the best—choose Enerdoor for unmatched protection and performance.

Browse Motor Protections

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FIN47SNB Snubber dV/dt Filter
  • Three-phase plus neutral star point snubber 
  • Nominal voltage up to 600 Vac
  • Protects motor windings, insulation and bearings
  • Only one model for unlimited HP motors
  • Compact dimensions due to parallel installation
  • Reduces dV/dT

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FIN5955 Differential Inductance
  • Differential mode inductance (load reactor)
  • Rated currents from 3 - 20A
  • Nominal voltage 600 Vac
  • Low power loss up to 250 Hz frequency output
  • Protects against voltage spikes on the motor
  • Increases motor life

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FIN5980P Differential Inductance
  • Load reactor
  • Rated currents from 9 - 22A
  • Nominal voltage 480 Vac
  • Eliminates dV/dt
  • Overvoltage spikes regenerate into the DC bus
FIN5980P

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FIN5983 Differential Inductance
  • Load reactor
  • Rated currents from 12 - 60A
  • Nominal voltage 600 Vac
  • Eliminates dV/dt
  • Footprint with drives manufacturers

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FIN900 Common Inductance
  • Choke
  • Rated currents from 10 - 280A
  • Nominal voltage 600 Vac
  • High impedance
  • Reduces high frequency interference (PWM)
  • Cable/screw connections available
FIN900.(010 - 030).C

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FIN915SFH High Frequency Sine Wave Filter
  • Currents rated from 5 - 1100A
  • Nominal voltage 600 Vac
  • Reduces dV/dt
  • Increases motor life
  • Ideal for high speed motors with output frequency up to 10 kHz
FIN915SFH.(005 - 048).M

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FIN930 Common Inductance
  • Choke
  • Rated currents from 6 - 200A
  • Nominal voltage 600 Vac
  • Low impedance
  • Reduces dV/dt
  • Increases motor life

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FIN958 Differential Inductance
  • Load reactor
  • Rated current from 12 to 110A
  • Nominal voltage 600 Vac
  • Protects against voltage spikes on the motor
  • Low power loss output frequency up to 1 kHz

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FIN960F Differential Inductance
  • Load reactor
  • Rated currents from 10 - 1000A
  • Nominal voltage 750 Vac
  • Low power loss with frequency output up to 30 kHz
  • High frequency applications
  • Reduces motor temperature
  • Ideal for high speed motors

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FINSTP Star Point Snubber
  • Reduces dV/dt star point - PE
  • Nominal voltage 600 Vac 
  • Protects motor windings, insulation and bearings
  • Over temperature protection
  • Only one model for unlimited HP motors
  • Very low power loss 

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FINTR Toroid and FINFE Ferrite
  • High permeability toroid and ferrite core to reduce common mode noise
  • Plastic covers protects against accidental contact
  • Insulation plastic housing included
  • Helps pass radiated emission test EN61000-6-4
  • For indoor and outdoor applications
  • Available in various sizes

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ORT Load Reactor
  • Reduces dV/dt voltage peaks
  • Minimal power loss
  • Ventilation-free design
  • Ideal for VFDs, water treatment plants, and industrial automation
ORT025 - ORT030

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SWF Sine Wave Output Filter
  • Eliminates high-frequency disturbance
  • Ideal for applications with motor cables longer than 250m
  • Rated current from 2 to 1000A
  • Minimal power loss
  • Ventilation-free design
SWF.(210 - 380).M

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