Filters and Chokes

Sine Wave Filters

KEB Sine Wave Filters provide a cleaner, sinusoidal power supply to your motor. This reduces heat buildup, extends cable range, and minimizes noise. Enjoy improved motor health, system performance, and meet stricter EMI regulations with a KEB filter.

KEB Sine Wave Filters are ideal for applications requiring sinusoidal output waveforms. They can handle a wide range of frequencies, from the standard 50 Hz/100 Hz/200 Hz all the way up to 1,600 Hz. This is achieved through the use of carefully designed capacitor modules and cable sets.

Our filters are built to handle a rated voltage of 400V AC and are available in current ratings from 1.3A to 710A, making them suitable for various applications.

Catalog Customer-fabricated Cables Instructions
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Product Details

KEB sine wave filters smooth out the power to your motor. They eliminate choppy signals, reducing noise and heat, while extending usable cable lengths.

When a KEB Sine Filter is used, the allowable motor cable length can be up to 500 meters. The sinusoidal output voltages reduce discharge currents driven by pulse frequency.

The sinusoidal voltage between phases reduces motor noise.

Customers can also expect to see a reduction in high-frequency transient emissions and improve the entire EMC load on the equipment.

Tech Specs

Electrical

• Voltage class: 400V (500V Max)
• Rated current: 1.3-710A
• Max output frequency: options for 100, 200, 800, and 1200/1600 Hz

Environment

• Protection type: IP20
• Climate category: 3K3 (in accordance with EN60721-3-3)

Certifications

• CE
• UL (*Only available on some models. Contact KEB for details.)

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Using Sine Wave Filters for Efficiency

KEB's high-speed sine wave filters are designed to improve the efficiency of your drive system. They work to smooth the VFD's output voltage and current waveform, reduce heating, and protect the bearing from damage or stress. This leads to a longer motor life and overall quieter operation.

Optimizing High-Speed Motors with KEB
Announcement Z2 Sine Wave Filter Cable Sets Instructions
Customer-fabricated Cables

Sine Wave Filter Features

Sine Wave Filtering

Sine wave filtering uses an inductor/capacitor combination to provide a smooth output to the motor. This also helps to reduce heat and increase the system's lifetime.

Pulse with Modulation

PWM is a technique used by VFDs to control the motor speed and torque. This allows for efficient motor control and energy use.

Advantages of Choosing Sine Wave Filters

• Increased service life of the bearing currents
• Reduced motor noise
• Improved motor efficiency
• Optimized high-frequency interference emissions
• Lowered EMC load on the equipment
• Reduced discharge currents driven by pulse frequency in long cable lengths
• Reduced capacitive currents
• Increase in the service life of motor insulation
• No excess voltage and a smaller rise in voltage at the motor winding

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