Magnetec

CoolBLUE® & NaLa®

Electric motors in industrial applications can suffer performance issues due to high-frequency currents generated by variable frequency drives (VFD’s). These currents can lead to increased motor heating, bearing damage, and electromagnetic interference (EMI) that disrupts nearby electronics.

Magnetec’s CoolBLUE® Common Mode Chokes, in conjunction with their NaLa® Differential Mode Chokes, mitigate these high-frequency currents and suppress EMI prior to reaching the motor or other nearby electronics, thus protecting sensitive components and improving overall system reliability.

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Bearing Protection

CoolBLUE® inductive absorbers protect motor bearings by filtering out damaging high-frequency currents produced by variable frequency drives (VFDs). In addition to CoolBLUE®, NaLa® differential mode chokes further minimize noise and peak currents, adding another layer of bearing protection.

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Electrical Solution

CoolBLUE® and NaLa® offer a targeted electrical solution for bearing and EMI related issues, thus ensuring optimal performance and longevity, unlike less effective “band-aid” approaches such as grounding rings or brushes.

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Easy Installation

CoolBLUE® and NaLa® offer a faster and more efficient integration into motor systems compared to conventional methods. This simplified design minimizes downtime during installation and reduces the need for complex modifications, making them a practical choice for both new and retrofit applications.

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Reduce Downtime

By effectively filtering out high-frequency currents, CoolBLUE® and NaLa® chokes significantly reduce the risk of electrical fluting and EMI issues such as ghost shutdowns, leading to decreased downtime and a more reliable system operation.

Extend Motor Life

By mitigating harmful high-frequency currents, CoolBLUE® and NaLa® chokes protect motor bearings from electrical damage like pitting, frosting, and fluting, thus extending the motor lifespan and reducing the need for constant bearing replacements.

Protect Nearby Electronics

CoolBLUE® and NaLa® chokes effectively reduce conducted electromagnetic interference (EMI) from variable frequency drives (VFDs). They do this by absorbing high-frequency EMI currents, preventing them from traveling through power cables and interfering with nearby sensitive electronic equipment.

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Nanocrystalline Technology

Base Material: The core is primarily composed of iron (Fe), which provides the foundation for its magnetic properties and contributes to its high saturation flux density, allowing it to handle strong magnetic fields.

Key Additives: Specific elements like silicon (Si), niobium (Nb), copper (Cu), and boron (B) are added in precise proportions. These additions play crucial roles in refining the microstructure and enhancing the material’s soft magnetic characteristics.

Microstructure: This microstructure is achieved through a specialized manufacturing process involving rapid solidification and controlled heat treatment, resulting in superior magnetic performance.

Resulting Properties: The nanocrystalline structure yields desirable magnetic properties: high permeability for efficient flux conduction, low coercivity for minimal energy loss, low core losses for improved efficiency, and high saturation flux density for handling high power.

Watch The CoolBLUE® Video

Discover how CoolBLUE® Inductive Absorbers, featuring nanocrystalline cores, can significantly reduce or even eliminate motor bearing damage in variable frequency drive (VFD) applications. Watch this video for a detailed explanation.

Selection Tool

CoolBLUE® & NaLa® Selection Tool

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CoolBLUE® Part Number Quantity
NaLa® Part Number Quantity