Nanocrystalline Current Leakage Switch Magnetic Cores

High permeability:

Allows for accurate measurement of small leakage currents with high precision and low error.

High saturation induction:

Increases the accuracy of the switch and reduces the need for a larger core size.

High linearity:

Ensures that the core's response is consistent across a wide range of current values.

Small volume:

Enables the creation of more compact and efficient leakage switches.

Excellent temperature stability:

Provides reliable performance over a wide temperature range, from approximately -25 to 85 ℃ or even higher.

Applications in leakage current switches

• Leakage protection:

These cores are central to the function of residual current devices (RCDs) and ground fault circuit interrupters (GFCIs), detecting small leakage currents to prevent electrical shock and fire.

• Power monitoring:

Used in energy meters and power meters for precise current and voltage data sampling.

• Motor protection:

Helps protect motors in applications like servo motors and new energy vehicles by monitoring for leakage.

Nanocrystalline core Material and manufacturing

Material:

The cores are made from a nanocrystalline alloy, which is formed into thin ribbons and wound into the desired shape.

Form factor:

Typically produced as toroidal (donut-shaped) cores, but can also be custom-shaped.

Protection:

Because the nanocrystalline material is brittle, the finished core is usually enclosed in a protective plastic housing or coated to prevent mechanical damage.