A busbar conductor is a metallic strip or bar used for high-current power distribution in electrical systems, providing efficient and reliable electricity transfer.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Conductivity | ≥97% IACS for copper, ≥61% IACS for aluminum | |
| Cross Section | 10mm x 2mm to 200mm x 20mm (rectangular) | |
| Current Rating | 200A to 5000A (typical) | |
| Surface Finish | Bare, tin-plated, or silver-plated | |
| Voltage Rating | Up to 1000V AC/DC | |
| Temperature Range | -40°C to +105°C (operating) | |
| Short Circuit Withstand | 50kA for 1 second (typical) |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A busbar system in a capacitor bank is the primary electrical distribution network that connects multiple capacitor units together, allowing for the efficient transfer and distribution of reactive power compensation throughout the electrical system.
Primary power distribution conductor within a Motor Control Center that horizontally connects multiple vertical sections or compartments.
A vertical electrical conductor system within a Motor Control Center that distributes power between horizontal busbars at different levels.
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Manufacturer profiles associated with Busbar Conductor.
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Copper busbars offer higher conductivity (about 1.6 times better than aluminum), better corrosion resistance, and higher mechanical strength, but are more expensive and heavier. Aluminum busbars are lighter, more cost-effective, and require larger cross-sections for equivalent current capacity, often needing surface treatments to prevent oxidation.
Current rating depends on material conductivity, cross-sectional area, ambient temperature, and cooling conditions. It can be calculated using formulas considering permissible temperature rise (e.g., 30°C above ambient), with derating factors for enclosed installations or high ambient temperatures. Standards like IEC 61439 provide guidelines for sizing.
Common failures include overheating due to poor connections or overload, corrosion (especially for aluminum), mechanical fatigue from thermal cycling, insulation breakdown, and short-circuit damage from inadequate withstand ratings.
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