Overview
When an aluminium cable has to land on a copper busbar or breaker terminal, a plain copper or aluminium lug alone is not ideal: dissimilar metals in contact in the presence of moisture can corrode. A bimetallic lug or connector puts an aluminium barrel on the cable side and a copper palm on the terminal side.
Empire Alloys processes both copper and aluminium in Jamnagar and manufactures bimetallic lugs and connectors along with its copper lugs and aluminium split bolts, so a project can source its complete termination set from one plant.
Types and variants we make
Bimetallic cable lugs
Aluminium barrel, copper palm.
Bimetallic connectors
Joints between aluminium and copper conductors.
Custom bimetallic parts
Special palms, holes or barrels to drawing.
Specifications
| Materials | Copper and aluminium |
|---|---|
| Finish | As required (tin plating on copper side available) |
| Sizes | To cable size and terminal drawing |
Values shown are typical capabilities. Final dimensions, threads, tolerances and finish are confirmed against your drawing or sample at quotation stage.
Why buyers specify these parts from Empire Alloys
- Copper and aluminium processed at the same plant
- Matched to our aluminium split bolts and copper lugs
- Built to drawing for utilities and OEMs
Applications
- Aluminium cable to copper busbar
- Distribution transformers
- Feeder pillars
- Solar inverters and combiner boxes
Materials, plating and packing
Free-cutting brass (CZ121 / IS 319 type) is the default for machined parts; copper, copper alloys, aluminium, gunmetal and steel are also processed in-house. Plating options at Empire Alloys include tin, copper, chrome, nickel and zinc, with shot blasting and nitric wash available as surface treatments.
Parts are packed to suit the shipment: PVC or thermal PVC bags, cartons, shrink-wrap, strapped wooden cases or pallets, with every bag and carton labelled for easy identification.
What to send with your enquiry
- Drawing (PDF/DWG/STEP) or a physical sample, plus the part name or code you use
- Material grade and any standard the part must meet
- Thread type and size, critical dimensions and tolerance
- Finish or plating, quantity per lot and annual requirement
- Packing preference and delivery location (India or export)
Frequently asked questions
When do I need a bimetallic lug?
Whenever an aluminium conductor is terminated on a copper terminal or busbar.
Can you supply copper lugs too?
Yes. See copper cable lugs.
What information do you need to quote?
Cable size and material, terminal hole size, palm width and quantity.
Related products
Copper Cable Lugs
Tubular, offset tang and lay-in copper lugs for cable terminations.
View details →
Aluminium Split Bolts
Aluminium split bolts in V-box and round designs for aluminium conductors.
View details →
Split Bolt Wire Connectors
Copper-alloy split bolts from 6 mm² to 300 mm² with pressure bar and hex nut.
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Electrical Wire Connectors
Screw-type, terminal and custom brass wire connectors for panels and wiring.
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