Flat Wire
Copper Flat Wire for Coils and Windings
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Copper flat wire provides a rectangular current path for coils, transformers and compact electrical assemblies. Specify width, thickness and corner radius together with the copper grade, temper and insulation needs. These details determine how the wire fits and bends in the winding.
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Construction and specification
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| Item | Specification |
|---|---|
| Material construction | Specified copper grade and temper |
| Product form | Flat wire |
| Surface | Bare, plated, annealed, insulated-ready |
| Supply format | Coils, spools or cut lengths |
Explore the related product details for this material and product form.
Specification design factors
Drawing-defined specification
Geometry and performance
- Width, thickness and corner shape define the conductor envelope.
- Camber, twist and bend direction affect winding and automated feeding.
- The metal section and any insulation build occupy separate parts of the finished envelope.
Selection and processing
For a catalog dimension reference, see copper flat wire. Define the corner radius and finished insulation dimensions in addition to metal width and thickness. The drawing determines fit, bend direction and the winding clearances.
Material and form references
Rolled strip, foil and flat wire are defined by material, temper, section and finished-part requirements. Their geometry and test methods differ from those of round wire.
Standards and product formsProduct questions
What is copper flat wire?
copper flat wire is a rectangular or ribbon-shaped conductor made by precision rolling or drawing, used where space utilization, heat dissipation and winding efficiency are important.
Why use copper flat wire instead of round wire?
Flat wire can improve slot fill factor, contact area, thermal path and packing density compared with round wire in motors, coils, transformers and power components.
Which drawing details are needed for Copper Flat Wire for Coils and Windings?
Width, thickness and tolerances. Corner radius, edge condition, camber and twist. Metal grade and temper. Surface finish or coating, joining method and inspection requirements. Quantity, spool or coil format, packaging and delivery destination.
How does a flat section behave in bending and winding?
Width, thickness and corner geometry define the conductor envelope. Bending about the long and short edges produces different strains and springback. Bare metal and insulated finished dimensions occupy different portions of the available winding space.
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- Width, thickness and tolerances
- Corner radius, edge condition, camber and twist
- Metal grade and temper
- Surface finish or coating, joining method and inspection requirements
- Quantity, spool or coil format, packaging and delivery destination