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This section provides an overview for copper buss bars as well as their applications and principles. Also, please take a look at the list of 13 copper buss bar manufacturers and their company rankings. Here are the top-ranked copper buss bar companies as of December, 2024: 1.Watteredge, LLC, 2.R.H. Marketing, 3.Sunflex Metal Industries.
Table of Contents
Copper buss bars are copper materials used in the current-carrying parts of electrical equipment, and are made of tough pitch copper or oxygen-free copper, which has excellent electrical and thermal conductivity.
Tough pitch copper (C1100) is a metal with a Cu purity of 99.9% or higher. It has excellent electrical and thermal conductivity as well as corrosion resistance and workability. Due to the presence of a trace amount of oxygen inside, it may react with hydrogen at high temperatures, resulting in hydrogen embrittlement.
Oxygen-free copper (C1020) contains less oxygen than tough pitch copper and has less resistance and distortion, so oxygen-free copper may be used in environments where hydrogen embrittlement is a concern. Oxygen-free copper is also widely used in vacuum equipment because of its low gas emission.
Copper buss bars are used as conductors for carrying large currents at high voltage in a variety of applications, including power distribution boards and circuits for controlling electric vehicles and trains.
Compared to round conductors, copper buss bars have the advantage of better conductivity and require less wiring space. In addition, there is no need to caulk the terminals; simply drill holes directly through copper buss bars and bolt them to the equipment. When conductors are thicker, it is necessary to consider the bending radius, but this is not necessary with copper buss bars.
Copper buss bars require a minimum cross-sectional area based on the current value. The cross-sectional area is calculated by dividing the current value by the current density as follows:
In designing the actual cross-sectional area, the cross-sectional area is determined by taking into account the chamfering and forming of the material and the current density increase +5%.
Copper buss bars have screw holes to fix them to equipment. If the cross-sectional area of the screw holes exceeds 1/2 of the cross-sectional area without screw holes, it is not necessary to adjust the cross-sectional area of the screw holes to the cross-sectional area determined by the calculation.
In addition to copper, copper buss bars may also be made of aluminum. Although aluminum has lower tensile strength and conductivity than copper, it is less expensive and may be considered as a cost reduction plan. On the other hand, aluminum has lower conductivity, so the conductor volume must be larger than that of copper buss bars.
*Including some distributors, etc.
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Watteredge LLC is an Avon Lake, Ohio-based manufacturer of high-current conductors established in 1954. Its product portfolio includes battery & custom busbar copper connectors, water-cooled power cables, resistance welding cables, busbar systems, and laminated shunts produced through design and testing technologies such as CAD and solid works for 3D & 2D design and CNC machining. The company is ISO 9001:2015-certified and DQS 10017160-registered, serving the automotive, energy & power generation, and chemical processing industries.
Shanghai Metal Corporation, established in 1980 as a state-owned Shanghai Metal Materials Company headquartered in Shanghai, China, is a manufacturer and supplier specializing in metal materials and products. The company's metal offerings include aluminum, copper, stainless steel, galvanized steel, and steel products. It also provides metal machines for forming, cutting, bending, and processing. Additionally, the company offers various containers, gas cylinders, fire extinguishers, mechanical products, and electrical systems. These products find applications in various industries, such as automobile, construction and decoration, electrical and transformer components, machinery, and packaging. Other applications include oil, gas, and water pipelines, as well as boilers and tanks.
Bhagyanagar India Ltd. (BIL), established in 1985 and headquartered in Hyderabad, India, is a manufacturer of copper products. The company specializes in copper items, including rods, strips, and sheets. It offers solar flat plate collectors, commutators, and submersible wires. It also produces paper-insulated copper conductors for transformers and motors, and specialized products like yoke assemblies and solenoid switches for machinery and automotive manufacturing processes. Its copper foils and sheets are used in telecommunications and automotive sectors. Listed on the Bombay Stock Exchange and the National Stock Exchange, the company serves OEMs like L&T, Lucas-TVS, and Toshiba.
Multimet Overseas, founded in Mumbai, Maharashtra, is a manufacturer of electrical components, earthing and lightning protection components. The company's product portfolio includes Stainless Steel Cable Ties, Brass Cable Glands, Cable Cleats, Brass & Copper Turned Parts and O-H Line Hardware. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. They also offer quality control, customer support, warehousing, and distribution services.
RK Copper & Alloy LLP, established in 1991 and headquartered in Mumbai, India is a manufacturer of copper strips, mechanical, and plumbing systems. The company offers a wide range of products, including copper strips, copper wire, copper bars, copper hex bars, copper bus bars, and more. It also offers copper continuous cast copper wire rods, copper square bars, and copper round bars. Its product can withstand high pressure and temperature changes, as well as its resistance to corrosion and rust. The company has achieved ISO 45001:2018 and ISO 14001:2015 certifications. It serves various industries, including construction, electrical, plumbing, and more.
Sunflex Metal Industries, established in 1990 and located in Mumbai, India, is a manufacturer, exporter, and supplier of copper, copper-nickel alloy, and brass. The company’s product range includes pipes, tubes, sheets, plates, and round bars. It stocks and distributes material specifications such as AB1, AB2, CuAl10Ni5Fe4, NES 833 (Def Stan 02-833), and CW307G. It also offers pressure tubing for condensers, oil coolers, chillers, cooling towers, scrubbers, and boilers. Its products are used in industries such as mechanical tubing, marine, and refineries and are supplied worldwide.
Nexus Metal & Alloys is a manufacturer and distributor of copper and brass products that is based in Mumbai, India, and was established in 2008. Its main activities involve the manufacturing of various stainless steal products, including earth boss, earth rods and cable ties as well as the supply of brass cable glands, concrete earth pit, and aluminium earthing strips. The company provides a wide range of copper and brass products, including pipes, tubes, sheets, and fittings. Nexus Metal & Alloys caters to various industries, including construction, electronics, and automotive.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Watteredge, LLC |
31.0%
|
| 2 | R.H. Marketing |
10.3%
|
| 3 | Multimet Overseas |
10.3%
|
| 4 | Mehta Tubes Limited |
6.9%
|
| 5 | Citizen Metalloys Ltd. |
6.9%
|
| 6 | Conex Metals |
6.9%
|
| 7 | RK Copper & Alloy LLP |
6.9%
|
| 8 | Sunflex Metal Industries |
6.9%
|
| 9 | Nexus Metal & Alloys |
6.9%
|
| 10 | Bhagyanagar India Ltd. (BIL) |
3.4%
|
Derivation Method
The ranking is calculated based on the click share within the copper buss bar page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
India
|
9 | 75.0% |
|
China
|
2 | 16.7% |
|
United States of America
|
1 | 8.3% |
1 product is listed.
Manse Kogyo Co., Ltd.
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■Features Pure copper with Cu99.90% or more contains 0.02 to 0.05% oxygen and has excellent electrical conductivity. Since it is easy to obtain, it...
