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Electrical Aluminum Busbar Manufacturer & Supplier

Notice: Production MOQ 500 kg. Stock products can be purchased in small quantities.

Aluminum bus bars are essential conductive components used in power distribution systems, switchgear assemblies, renewable energy installations, and battery applications. With advantages in lightweight design, cost efficiency, and reliable electrical performance, aluminum busbars are widely adopted in medium- and high-current applications where conductivity, thermal stability, and structural reliability are critical.

As a professional aluminum bus bar manufacturer and global supplier, Chalco provides a comprehensive portfolio of EC-grade and structural alloys including 6101 (T61), 1350, 1060, 6061, 6063, and 6082. Backed by integrated casting, extrusion, machining, and surface treatment capabilities, we support customized production, stable bulk supply, and export-ready project delivery. Our long-term cooperation with leading transformer, switchgear, and energy equipment manufacturers reflects our proven quality control and reliable supply performance in global power projects.

Chalco aluminum busbar partner

Aluminum Busbar Grades & Alloy Options

  • 6101 aluminum bus bar
    6101 EC Aluminum Bus Bar (T61) T6, T61, T63, T64, T65

    6101 aluminum bus bar is a high-conductivity EC grade alloy widely used in switchgear and power distribution systems. Compared with 1350, it offers improved mechanical strength and better anti-creep performance.

    High conductivity Anti-creep performance
  • 1350 aluminum bus bar
    1350 EC Aluminum Bus Bar H14, H16, H19

    1350 aluminum busbar contains a minimum of 99.5% aluminum and is widely recognized as an EC-grade conductor alloy, providing excellent electrical conductivity. It is commonly used in battery busbars and high-current applications.

    Maximum conductivity Battery applications
  • 6061 aluminum bus bar offers a balance of conductivity and structural strength, making it suitable for applications requiring both electrical performance and mechanical stability.

    Structural strength Good machinability
  • 6063 aluminum bus bar
    6063 Aluminum Bus Bar T5, T6, T66

    6063 aluminum busbar is known for its excellent surface finish and extrusion performance. It is commonly used where aesthetic appearance and heat dissipation are important.

    Surface finish Heat dissipation
  • 6082 aluminum bus bar provides higher mechanical strength while maintaining reliable electrical conductivity, suitable for heavy-duty industrial installations.

    High strength Industrial grade
  • 1070 aluminum bus bar
    1070 EC Aluminum Bus Bar

    1070 aluminum bus bar offers very high electrical conductivity with excellent forming properties. It is commonly used in medium- and high-current electrical systems where conductivity is the primary requirement.

    High conductivity Good formability
  • 6060 aluminum bus bar
    6060 Aluminum Bus Bar

    6060 aluminum busbar provides a balance between electrical conductivity and extrusion performance. It is suitable for applications requiring smooth surface finish and lightweight structural design.

    Lightweight Excellent extrusion
  • custom aluminum bus bar
    Custom Aluminum Bus Bar

    Custom aluminum bus bars are available in various sizes, thicknesses, and surface treatments including tin plated aluminum bus bar options to meet specific project requirements.

    Custom sizes Tin plated option

Aluminum Tubular Busbar (Bus Pipe)

Aluminum busbars are typically supplied in flat bar form. For high-current and substation applications, aluminum tubular busbars (aluminum bus pipes) provide an alternative structural solution.

Compared with flat bars, tubular busbars offer greater rigidity, improved heat dissipation, and reduced corona effects, making them suitable for long-span and outdoor high-voltage systems.

aluminum tubular busbar

Chalco provides aluminum bus pipe solutions in multiple alloys to meet different electrical and structural requirements:

  • 6101 Aluminum Bus Pipe – High conductivity with enhanced mechanical strength, widely used in high-current power transmission systems.
  • 1350 Aluminum Bus Pipe – Maximum electrical conductivity, suitable for ultra-high current and substation bus systems.
  • 6061 Aluminum Bus Pipe – Combines structural strength and conductivity for mechanically demanding installations.
  • 6063 Aluminum Bus Pipe – Excellent extrusion performance and surface finish, ideal for precision applications.
  • 1060 Aluminum Bus Pipe – High purity aluminum offering reliable conductivity and good formability for medium-current systems.
  • 3003 Aluminum Bus Pipe – Improved corrosion resistance with moderate strength, suitable for industrial and outdoor environments.

For detailed specifications, dimensional data, and ampacity performance of tubular busbars, please refer to our dedicated Aluminum Electrical Bus Pipe page. For project-specific requirements or technical consultation, please contact our engineering team for support.

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Aluminum Busbar Ampacity & Current Carrying Capacity

The current carrying capacity (ampacity) of an aluminum busbar depends on alloy type, cross-sectional area, installation method, and ambient temperature. Proper sizing ensures safe operation, reduced temperature rise, and long-term reliability.

Below is a simplified reference for flat aluminum bus bars under standard installation conditions:

Size (mm) Cross Section (mm²) Approx. Ampacity (A)
30×5 150 ~300 A
40×5 200 ~400 A
50×5 250 ~500 A
60×10 600 ~1000 A

For detailed aluminum busbar ampacity data under different temperature rise limits and installation conditions, please refer to the full ampacity chart below.

Note: Ampacity values are approximate and may vary depending on installation conditions, airflow, and allowable temperature rise.

Aluminum Busbar Size & Dimensions

Aluminum busbar size selection depends on current carrying requirements, installation space, and temperature rise limits. Standard flat aluminum bus bars are available in various thicknesses, widths, and lengths to meet common electrical system specifications.

  • Thickness: typically 2 mm – 40 mm
  • Width: typically 10 mm – 200 mm
  • Length: up to 12 meters (custom cutting available)

For high-capacity power distribution and substation projects, large cross-section aluminum busbars can be customized to support higher ampacity and improved thermal performance. Wider and thicker busbars reduce resistance and temperature rise under heavy load conditions.

Custom aluminum busbar sizes, drilled holes, bending configurations, and surface treatments can be manufactured according to project drawings and technical specifications.

Chalco Aluminum Busbar Manufacturing & Surface Treatment Capabilities

Chalco manufactures aluminum busbars using precision extrusion, rolling, and CNC machining processes. Our production capabilities support stable electrical performance, dimensional accuracy, and project-based customization for industrial and power distribution systems.

Production Capability

Chalco manufactures aluminum busbars through both extrusion and large-size plate processing, supporting standard conductive bars as well as heavy-section industrial power applications.

  • Extruded busbars with stable cross-section control, available in lengths up to 12 meters for high-current systems
  • Heavy-section busbars processed from thick plates, supporting sizes up to 120 mm thickness and 600 mm width
  • Controlled flatness and dimensional tolerance for large-format industrial busbars

Surface Treatment Options

To enhance corrosion resistance and connection reliability, we provide multiple surface treatments for aluminum bus bars:

  • Tin Plated Aluminum Bus Bar – Reduces contact resistance and improves oxidation resistance in humid or outdoor environments.
  • Nickel or Silver Plating – Enhances conductivity and wear resistance for critical electrical connections.
  • Anodizing – Provides additional surface protection in specific industrial applications.

Copper Cladding & Insulation Solutions

For applications requiring bimetallic transition or electrical insulation, we offer:

  • Copper-clad aluminum processing (explosive welding, rolling cladding)
  • Powder coating and epoxy insulation
  • Insulation sleeves (PVC, heat shrink, silicone)

Precision Machining & Custom Fabrication

Custom aluminum busbar sizes and configurations can be manufactured according to technical drawings and installation requirements:

  • Custom cutting (up to 6 meters)
  • Drilling & punching for connection holes
  • CNC milling and slotting
  • Bending and forming for assembly integration
  • Thickness range: 2 mm – 40 mm
  • Width range: 10 mm – 200 mm

Applications of Aluminum Busbars

Aluminum busbars are widely used in medium- and high-current electrical systems where weight reduction, cost efficiency, and reliable conductivity are required. Proper alloy selection and structural design allow aluminum busbars to perform effectively across various industrial and power applications.

  • Power Transmission & Distribution: Used in substations, distribution transformers, switchgear assemblies, and panel boards. In high-current systems, aluminum busbars serve as primary electrical bus bar solutions for stable current transfer and structural integration.
  • Battery & Energy Storage Systems: In EV battery packs, energy storage cabinets, and charging infrastructure, lightweight aluminum conductors reduce overall system weight while maintaining reliable conductivity. See our dedicated battery bus bar applications for detailed configurations.
  • Power Electronics & Compact Equipment: In inverter systems, converters, and UPS equipment, space-saving conductor layouts are critical. In these cases, laminated busbars are often adopted to reduce inductance and improve thermal performance.
  • Industrial Equipment & Mechanical Installations: Manufacturing plants, mining facilities, and heavy-duty electrical installations use aluminum busbars for cost-effective current distribution, especially where large cross-sections are required.
  • Grounding & Safety Systems: Aluminum busbars are also used in grounding and bonding systems to ensure electrical safety and equipotential connection. Learn more about ground busbar applications.

Aluminum Busbar Applications in Power and EV Systems

Aluminum vs Copper Busbar Comparison & Transition Solutions

Aluminum and copper are both widely used materials in electrical busbar systems. Material selection depends on conductivity requirements, installation space, mechanical performance, and overall project cost. When properly engineered and installed, both aluminum and copper busbars can achieve reliable long-term performance in power distribution systems.

Aluminum vs Copper Busbar Comparison
  • Electrical Conductivity: Copper has lower resistivity, but aluminum achieves comparable performance when properly sized.
  • Weight: Aluminum is approximately 50% lighter than copper, reducing structural load and installation effort.
  • Thermal Expansion: Aluminum has a higher expansion coefficient and requires proper fastening design.
  • Cost Consideration: Aluminum bus bars generally offer better cost efficiency in high-current and large-volume projects.

Copper and aluminum busbars are both widely used in power systems, and when properly sized and connected with suitable transition solutions, they can achieve reliable electrical performance while balancing conductivity, weight, and cost considerations.

  • Bimetallic Transition Plates
    Bimetallic Transition Plates

    Copper-aluminum bonded plates designed to prevent galvanic corrosion and maintain low contact resistance in transition assemblies.

  • Copper-Clad Aluminum Busbars
    Copper-Clad Aluminum Busbars

    Integrated bimetallic solution combining aluminum conductivity with a copper interface for stable copper-to-aluminum transitions.

  • Busbar Connectors
    Busbar Connector

    Used for multi-busbar connections and controlled transition assemblies.

  • Busbar Terminal Connectors
    Busbar Terminal Connector

    Support cable-to-busbar and copper-to-aluminum interface transitions in switchgear systems.

Chalco – Reliable Aluminum Busbar Manufacturer & Global Supplier

Chalco is a professional aluminum busbar manufacturer supplying EC-grade conductive busbars for power distribution, renewable energy, industrial equipment, and EV systems worldwide. We support large-scale production, stable quality control, and export-ready project delivery.

  • Complete Product Range: Aluminum, copper, and copper-clad aluminum busbars with EC-grade alloys including 6101, 1050, 1060, 1070, 1100, 1350, 6061, 6063, and 6082
  • International Standards Compliance: ASTM B317, ASTM B236, IEC 60105, EN 573-3, DIN EN 755-2, ISO 209
  • Certified Quality System: Mill Test Certificate (MTC) available, third-party inspection support
  • Stable Supply Capacity: Bulk production capability with consistent raw material sourcing
  • Global Export Experience: Supplying customers in Europe, North America, Southeast Asia, and the Middle East
  • OEM & Project Support: Drawing-based production, technical coordination, and flexible order quantities
  • Industry Partnerships: Long-term cooperation with transformer, switchgear, capacitor, and electrical equipment manufacturers

With integrated supply chain management and global project experience, Chalco ensures reliable delivery, competitive pricing, and long-term performance for aluminum busbar applications.

Aluminum Busbar Quality Control

Ampacity Chart of Copper and Aluminum Busbar

Converting Copper to Aluminum using an Ampacity Chart
Ampacity Conversion Chart Copper C110 30° C Rise 50° C Rise 65° C Rise Aluminum 6101 30° C Rise 50° C Rise 65° C Rise
Flat Bar Size in Inches Sq. In Circ Mils Thousands Weight Per Ft in Lb. DC Resistance at 20° C, Microhms/Ft 60 Hz Ampacity Amp* Weight Per Ft in Lb. DC Resistance at 20° C, Microhms/Ft 60 Hz Ampacity Amp**
1/2*1 0.5 637 1.93 16.5 620 820 940 0.585 31 347 459 526
1/2*1 1/2 0.75 955 2.9 11 830 1100 1250 0.878 21 465 616 700
1/2*2 1 1270 3.86 8.23 1000 1350 1550 1.17 15 560 756 868
1/2*2 1/2 1.25 1590 4.83 6.58 1200 1600 1850 1.463 12 672 896 1036
1/2*3 1.5 1910 5.8 5.49 1400 1850 2150 1.755 10 784 1036 1204
1/2*3 1/2 1.75 2230 6.76 4.7 1550 2100 2400 2.048 9 868 1176 1344
1/2*4 2 2550 7.73 4.11 1700 2300 2650 2.34 8 952 1288 1484
1/2*5 2.5 3180 9.66 3.29 2050 2750 3150 2.925 6 1148 1540 1764
1/2*6 3 3820 11.6 2.74 2400 3150 3650 3.51 5 1344 1764 2044
1/2*8 4 5090 15.5 2.06 3000 4000 4600 4.68 4 1680 2240 2576
1/4*1/2 0.125 159 0.483 65.8 240 315 360 0.146 123 134 176 202
1/4*3/4 0.188 239 0.726 43.8 320 425 490 0.220 82 179 238 274
1/4*1 0.25 318 0.966 32.9 400 530 620 0.293 62 224 297 347
1/4*1 1/2 0.375 477 1.450 21.9 560 740 880 0.439 41 314 414 482
1/4*2 0.5 637 1.930 16.5 710 940 1100 0.585 31 398 526 616
1/4*2 1/2 0.625 796 2.410 13.2 850 1150 1300 0.731 25 476 644 728
1/4*3 0.75 955 2.900 11 990 1300 1550 0.878 21 554 728 868
1/4*3 1/2 0.875 1110 3.380 9.4 1150 1500 1750 1.024 18 644 840 980
1/4*4 1 1270 3.860 8.23 1250 1700 1950 1.170 15 700 952 1092
1/4*5 1.25 1590 4.830 6.58 1500 2000 2350 1.463 12 840 1120 1316
1/4*6 1.5 1910 5.800 5.49 1750 2350 2700 1.755 10 980 1316 1512
1/8*1/2 0.0625 79.6 0.241 132 153 205 235 0.073 247 86 115 132
1/8*3/4 0.0938 119 0.362 87.7 215 285 325 0.110 164 120 160 182
1/8*1 0.125 159 0.483 65.8 270 360 415 0.146 123 151 202 232
1/8*1 1/2 0.188 239 0.726 43.8 385 510 590 0.220 82 216 286 330
1/8*2 0.25 318 0.966 32.9 495 660 760 0.293 62 277 370 426
1/8*2 1/2 0.312 397 1.210 26.4 600 800 920 0.365 49 336 448 515
1/8*3 0.375 477 1.450 21.9 710 940 1100 0.439 41 398 526 616
1/8*3 1/2 0.438 558 1.690 18.8 810 1100 1250 0.512 35 454 616 700
1/8*4 0.5 636 1.930 16.5 900 1200 1400 0.585 31 504 672 784
1/16*1/2 0.0312 39.7 0.121 264 103 136 157 0.037 494 58 76 88
1/16*3/4 0.0469 59.7 0.181 175 145 193 225 0.055 327 81 108 126
1/16*1 0.0625 79.6 0.242 132 187 250 285 0.073 247 105 140 160
1/16*1 1/2 0.0938 119 0.362 87.7 270 355 410 0.110 164 151 199 230
1/16*2 0.125 159 0.483 65.8 345 460 530 0.146 123 193 258 297
Source: Copper Development Organization; Aluminum Association
Note: Ratings depend upon configuration, air flow, ambient temp, etc. The values depicted are an approximation. Controlled testing is always required to validate.
Other considerations Forming the busbar (aluminum has a tendency to crack with very tight radius) Electroplating the busbar (white rust on aluminum, oxidation is an issue with aluminum) Configuration of the busbar (vertical or horizontal configuration)

Standard Conductive Aluminum Busbar Size Reference Table

Square angle aluminum bar
2mm 2*30 2*40 2*67 2*70 2.5* 25
3mm 3*10 3*15 3*20 3*25 3*30 3*40 3*50 3*60 3*67 3*75
3*110
4mm 4*10 4*15 4*20 4*25 4*30 4*40 4*45 4*50 4*60 4.6*60
4.8*9.8
5mm 5*15 5*20 5*25 5*30 5*35 5*40 5*50 5*60 5*80 5*100
6mm 6*20 6*25 6*30 6*40 6*50 6*54 6*55 6*60 6*65 6*70
6*75 6*80 6*100 6*120 6*150 6*160
6.3mm 6.3*50 6.3*63 6.3*63.5 6.3*80 6.35*50.8 6.35*76.2
7mm 7.6*80 7*150 7*4*20*4
8mm 8*11 8*30 8*40 8*50 8*51 8*60 8*63 8*63.5 8*65 8*70
8*80 8*90 8*100 8*120 8*125 8.8*28.6
9mm 9*170 9*125 9. 2*64
10mm 10*20 10*25 10*30 10*40 10*45 10*50 10*60 10*63 10*65 10*70
10*80 10*90 10*100 10*110 10*114 10*120 10*125 10*140 10*150 10*160
12mm 12*30 12*40 12*45 12*50 12*60 12*70 12*76 12*80 12*100 12*120
12*125 12*130 12*140 12*150 12*160
12.5mm 12.5*90 12.5*100 12.5*125 12.5*127 12.7*101.6 12.7*160
13mm 13*125 13*130 13*160
14mm 14*100 14*120 14.5*80
15mm 15*30 15*35 15*50 15*60 15*80 15*100 15*120 15*125 15*150
16mm 16*30 16*90 16*100 16*110 16*125 16*130 16*140 16*150 16*160
20mm 20*76 20*100 20*120 20*130
Square bar 19*19 30*45 15*15
Round bar Φ6 Φ8 Φ10 Φ11 Φ12 Φ14 Φ15 Φ15.6 Φ16 Φ18
Φ20 Φ21 Φ22 Φ23 Φ25 Φ27 Φ28 Φ30 Φ32 Φ35
Φ38 Φ40 Φ45 Φ50 Φ55 Φ60
Round angle aluminum bar
2mm R2*20 R2.5* 50
3mm R3*30 R3*40 R3*50 R3*60 R3*80 R3*100 R3*120 R3*160
4mm R4*25 R4*30 R4*35 R4*40 R4*50 R4*60 R4.1*44.1 R4.7*151
5mm R5*30 R5*35 R5*40 R5*45 R5*50 R5*60 R5*70 R5*75 R5*80
R5*90 R5*100 R5*120
6mm R6*40 R6*50 R6*60 R6*70 R6*80 R6*100 R6*120 R6*140 R6*160
R6.3*63 R6.35*76.5
7mm R7*70
8mm R8*40 R8*50 R8*60 R8*80 R8*100 RS*120
10mm R10*20 R10*40 R10*50 R10*60 R10*75 R10*80 R10*100 R10*120 R10*125
R10*150 R10*160 R10*170 R10.4*25
12mm R12*80 R12*100 R12*110 R12*120 R12*125 R12*150 R12*160
12.5mm R12.5*80 R12.5*125 R12.7*90 R12.7*127
13mm R13*120 R13*125
14mm R14*100 R14*120 R14*150
15mm R15*100 R15*120 R15*130 R15*150
16mm R16*150 R16*160
19mm R19.05*101.6 R19.05*127
20mm R20*80 R20*120 R20*130
Custom-shaped aluminum profiles *4*50 *5*50 *5*60 *6*40 *6*50 *6*60 *6*80 *8*60 *8*80
*8*100 *8*120 *10*40 *10*80 *10*100 *10*120 *12*80 *12*100 *12*120
*15*120 *20*130 *28*60

Aluminum Busbar Ordering & Pricing Information

The price of aluminum busbars depends on alloy type, cross-sectional size, surface treatment, and fabrication complexity. As a professional aluminum busbar manufacturer, Chalco provides competitive pricing based on stable raw material sourcing and large-scale production capacity.

  • Alloy Selection: EC-grade alloys such as 6101 and 1350 typically differ in conductivity and mechanical strength, affecting overall cost.
  • Cross-Section & Dimensions: Thickness, width, and length directly influence material consumption and current carrying capacity.
  • Surface Treatment: Tin plating, nickel plating, silver plating, or copper cladding will impact final pricing.
  • Machining & Customization: Drilling, bending, CNC processing, and special tolerances may affect production cost.
  • Order Volume: Bulk orders benefit from more competitive unit pricing.

For accurate aluminum busbar price quotation, please provide the following information:

  • Required alloy grade (e.g., 6101-T61, 1350-H19)
  • Dimensions (thickness × width × length)
  • Surface treatment requirements
  • Estimated order quantity
  • Application or installation environment (if applicable)

Our engineering team will evaluate technical requirements and provide a fast quotation along with material certification and delivery schedule details.

Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.

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MOQ for production is 500 kg. Stock items are available for small orders.