Round Copper Braid
Products Description
Round Copper Braid is a cylindrical copper braided wire product designed for precision electrical equipment such as magnetic latching relays. It features a white fiberglass insulating tube and is available in both cut and roll forms. Made from high-purity copper using a precision braiding process, this product has wide applications in electrical connections, current transmission, and electromagnetic shielding. A key choice for electrical engineers and purchasing decision-makers, it excels in current carrying capacity, flexibility, oxidation resistance, and long-term stability.
Design Advantages
Two Delivery Options
Cut-to-size options are suitable for internal relay assembly, with precise length control for each piece; roll-to-roll options are suitable for automated production lines, allowing for on-demand cutting and reducing material waste.
End Processability
The ends of the Braided Flexible Wire can be pre-treated according to customer requirements: including tinning (for easy insertion into terminal holes), cold-pressing (copper tube crimping), or ultrasonic welding (end densification).
Optional Sleeve Colors
White is the standard color for easy visual inspection of complete sleeve coverage; black, blue, or other colored sleeves can also be customized for circuit marking for Flexible Copper Wire for Latching Relay.
Adjustable Braid Density
The Magnetic Latching Relay Copper Braid density can be adjusted between 80% and 95% to balance current rating and flexibility requirements. Higher density results in stronger current carrying capacity; lower density provides better flexibility.
Working Principle and Technical Mechanism
Multi-strand Current Splitting and Skin Effect Optimization
In AC or pulsed current transmission, current tends to flow on the conductor surface (skin effect). Copper Braid for Relay Applications consists of hundreds of fine copper wires, with a total surface area much larger than a solid copper rod of the same cross-sectional area. This structure significantly reduces AC resistance and improves current-carrying efficiency. Simultaneously, the braided structure creates a mesh-like current path, enhancing the conductor's resistance to the skin effect.
Mechanical Stress Absorption Mechanism
Magnetic latching relays generate minute mechanical displacements and vibrations during operation. Solid wires cannot absorb these displacements, easily leading to solder joint breakage. The braided structure of Copper Braid for Electrical Contact gives it a spring-like elastic modulus, enabling it to absorb axial and radial mechanical stresses through its own minute deformation, thereby protecting the relay's internal solder joints from external damage.
Material Composition
Conductor Material: T2 high-purity copper, ensuring excellent conductivity for Copper Braid.
Bracket Structure: Multi-strand fine copper wires interwoven for enhanced flexibility and stability.
Insulation Layer (Optional): White fiberglass tubing, providing high-temperature resistance and insulatio.
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If you are evaluating Round Copper Braid applications in relays or power systems, please contact us for professional selection advice and customized support.
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