Reliable Aluminium Transformer Lugs Connectors for Electrical Systems
Conex’s Aluminium Transformer Lugs Connectors are precision-engineered for secure and efficient electrical connections in transformer systems, offering excellent conductivity and durability.
High-quality Aluminium Transformer Lugs Connectors by Conex, delivering reliable and long-lasting electrical connections for industrial and commercial power systems.
At Conex Aluminium Components, we specialize in manufacturing **Aluminium Transformer Lugs Connectors** designed to ensure secure and efficient electrical connections in transformer systems. These connectors are crafted from high-grade aluminium, offering superior conductivity, corrosion resistance, and mechanical strength. Ideal for use in industrial, commercial, and utility applications, they provide reliable performance in demanding environments. Available in a variety of sizes and configurations, Conex also offers customization options to cater to specific project requirements, ensuring top-quality performance and durability.
They terminate aluminium or copper service cables on distribution transformer spades or bushing studs. Designs include compression lugs, mechanical set-screw lugs and multi-conductor lugs that let several cables share one transformer terminal.
Lugs cover conductors from about #6 AWG to 1000 kcmil (16–500 mm²). Multi-port mechanical lugs accept two to six conductors per terminal, each within a marked range.
NEMA one-, two- and four-hole patterns with 9/16 in holes on 1-3/4 in centres are standard, matching IEEE C57.12.34 transformer spades. IEC patterns are available for metric transformers.
Transformer lugs are typically tested to UL 486A-486B and ANSI C119.4 for pull-out, heat-cycle and resistance performance, with NEMA dimensions per IEEE C57.12.34.
Tin-plated aluminium lugs rated AL9CU can accept both aluminium and copper conductors and connect to copper or tin-plated spades without galvanic corrosion.
A mechanical lug clamps the conductor with one or more set screws, so no crimping tool is needed. It covers a range of conductor sizes with one part, which simplifies stock and field installation.
Torque depends on screw size and conductor range and is marked on the lug; typical values range from about 20 Nm on smaller ports to 50 Nm or more on large conductors. Always use a calibrated torque tool.
Strip the conductor to the barrel depth, brush aluminium strands, insert fully and crimp with the specified die and number of crimps using a hydraulic tool.
Most distribution transformers and service cables use aluminium conductors. Aluminium lugs match their expansion and potential, are about one third the weight of copper lugs and cost significantly less.
Use 1/2 in or M12 stainless or galvanized bolts with Belleville washers and flat washers to maintain contact pressure through heat cycling and aluminium creep.
Pull-out, heat-cycle, electrical resistance and short-time current tests are performed per UL 486A-486B and ANSI C119.4, along with dimensional and plating checks.
Yes. Lugs and multi-tap connectors are used on both pad-mounted and pole-mounted transformers, with insulated covers available for pad-mounted cabinets.
Yes. Custom palm shapes, port counts, hole patterns and markings are produced to OEM drawings.
MOQ is 10 pieces. Samples are typically ready within 2–3 weeks and production within 4–6 weeks.
Please provide conductor sizes and quantity per terminal, lug type, hole pattern, plating, certification needs and quantity.
Need Aluminium Transformer Lugs Connectors? Get a Fast, Detailed Quotation
Send your drawing (STEP, IGES, DWG, DXF or PDF) with material grade, finish and quantity. Our engineers reply with a DFM review, price and lead time. MOQ 10 pcs • ISO 9001:2015 • Exports to USA, UK, Europe, Canada & Australia.
