Scope of Electrical Lugs
A cable lug also known as a cable terminal is a component of an electrical device that connects the cable to the device terminals. It simplifies the assembly of personnel, maintenance, and repair processes. A cable lug or connector is used when a permanent connection is required, but a direct one is inconvenient or impossible to achieve.
Lugs are made of high-grade electrolytic copper (ETP Grade) and available in a range of diameters and mounting holes, with wire sizes ranging from #8AWG to 1000MCM. The terminals are CSA & UL approved and have corrosion-resistant tin plating.
Classification of Various Types of Lugs/Terminals
Copper Terminals
Copper lugs are ideal in large gauge applications for power draw or grounding. The wire can be soldered or crimped to each copper lug. One end of the copper terminal takes the cable by soldering, welding, or crimping, depending on the type of lug used. The other end of the copper lug is secured to a matching termination or connection point by a bolt, screw, or spring clip.
Copper Cable Lugs offer easy installation and long-term dependability. AXIS Copper Lugs are made of high-grade ETP Copper material and tinned for corrosion protection. Excellent for any outdoor application or in a marine environment.
With cable sizes ranging from 1.5 sq mm to 1000 sq mm, our Electrical Lugs are dependable with rapid termination methods for interconnecting heavy gauge power cables to bus bars, relays, batteries, solar power inverters, power cables, grounding devices, and more, with increased efficiency, safety, and reduced costs.
Aluminium terminals are manufactured from the solid aluminium rod using high conductivity (99.6% pure) aluminium. The lugs are forged from solid material and are suitable for outdoor use (as the palm ends are sealed). The Aluminium Lugs are supplied with jointing compounds in the barrels and sealed with an end cap. We have a list of standard sizes but can manufacture according to the requirement. Crimping takes place with hex dies and usual aluminium cable preparation.
Copper lugs are better in numerous ways, however; these lugs are a bit more expensive than aluminium lugs. Due to its low price, aluminium wires and lugs are in almost every wiring system. Aluminium lugs related innovations are being made, making them as safe and convenient as copper lugs.
Aluminium lugs are tinned with a middle layer of copper coating for corrosion protection and are barrel entry chamfered at the end to provide easy insertion into a barrel.
The inner barrel of the lug has an AntiOxide compound, which reduces oxide formation caused inside and helps to get a better connection after crimping the lug with the conductor; however, UL listed aluminium lugs come with AL9CU marking, which is rated for a 90o C system.
Bimetallic Lugs
Axis bimetallic terminals made of Friction welding establish the highest quality connection between the copper palm and the Aluminum barrel.
Bimetallic Lugs are used in Solar Plants to connect aluminium conductors to copper busbars in a range of electrical applications such as control panels, switchgear, and combiner boxes.
The Aluminum barrel is friction welded to the copper palm, achieving the best possible transition between barrel & palm.
As a result, the aluminium conductors touch the aluminium barrels, and the copper busbar touches the copper palm. To prevent oxidation lug barrel is filled with contact lubricant which improves contact properties, enabling smooth electrical connection.
We manufacture a wide range of lugs, connectors and specialised items to meet specific customer needs. Other combinations can be made if needed:
1-Bi-metallic lugs – Aluminium barrel with copper palm (with single, double, or four holes)
2-Bi-metallic lugs with copper washer (Aluminium lug with copper washer)
3-Bi-metallic lugs reverse type (Copper barrel with aluminium palm)
4-Bi-metallic connectors – Straight type (for the same cross-section of Al & Cu cables)
5-Bi-metallic connectors – Reducing type (for different cross-sections of Al & Cu cables)
6-Bi-metallic connectors – Pin type (Aluminium barrel with solid copper pin)
Crimping Lugs
Crimping is the process of deforming one or both of two pieces of metal or similar material to hold the other in place. The bend or deformity is called a crimp.
Crimping lugs are connectors that connect cables, surfaces, and machinery. The clamps connecting wires to an automotive battery, and the ends of battery jumper cables, are examples of crimping lugs.
They are used in automobile wire systems, electrical boxes, machinery, household appliances, electronics, and other durable goods. For electrical applications, insulate them with rubber or plastic. They prevent accidental energy transfers to people or neighbouring electrical components.