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Copper Cable Lug

DT series copper cable lug is suitable for the conjunction of wires cable in the distribution equipment and the electrical equipment.
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1.Introduction:

The DT series copper cable lug is a high-quality electrical connector designed for secure and efficient termination of copper conductors. It features an acid-washed surface treatment, which ensures optimal conductivity and corrosion resistance. This lug is engineered to provide a reliable, permanent connection in various electrical applications, from power distribution to industrial machinery.

The DT series copper crimp lug (also known as a copper terminal or connector) is a critical component for joining copper cables to electrical equipment. Its design includes a cylindrical barrel for crimping onto the cable conductor and a flat tongue with a pre-punched hole for bolting to terminals. The acid-washed surface treatment enhances its performance by removing oxides and impurities, resulting in a clean, matte-finish surface ready for crimping. This lug combines high electrical conductivity with mechanical durability, making it ideal for demanding environments.


2. Drawings:

图片1

3.Specifications:

Type

Dimension(mm)

φ

D

d

L

L1

W

DT-10

8.5

9

5.2

63

32

16

DT-16

8.5

10

6.2

66.2

33.4

16

DT-25

8.5

11

7

72

33.4

18

DT-35

10.5

12

8.2

75.8

39

20

DT-50

10.5

14

9.8

86.2

42

23

DT-70

12.5

16

11.4

93

45

26

DT-95

12.5

18

13.8

103

48

28

DT-120

14.5

20

14.8

110.4

50.2

30

DT-150

14.5

22

17.2

117.2

52.2

34

DT-185

16.5

25

19

124

57.4

37

DT-240

16.5

27

20.8

135

63

40

DT-300

18

31

23

150

67

50

DT-400

21

34

26.5

158

68

50

DT-500

21

38

29

166

74

54.2

DT-630

21

45

34.2

203

78.6

59.8


4.Material

Primary Material: High-purity electrolytic copper (typically meeting standards like T2 or TU1), known for excellent electrical conductivity (≥98% IACS).

Surface Treatment: Acid washing using a phosphoric acid-based solution to remove oxides, contaminants, and minor imperfections. This process leaves a uniform matte finish while improving surface adhesion for crimping.


5. Production Process

Material Selection: High-conductivity copper rods or strips are selected and cut to size.

Forming: The copper wire terminal shape is cold-forged or stamped to form the barrel and tongue structure.

Hole Punching: A precision hole is punched in the tongue for bolt/screw fastening.

Acid Washing: Cable Terminal Lugs are immersed in a phosphoric acid solution to clean the surface, remove oxides, and etch the material slightly for improved crimp retention.

Rinsing and Drying: Thorough rinsing removes acid residues, followed by drying to prevent oxidation.

Quality Inspection: Each crimp terminal is checked for dimensional accuracy, surface quality, and conductivity.

Marking and Packaging: Size and model markings (e.g., "DT", "185") are stamped, and lugs are packaged for shipment.

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6. Features

High Conductivity: Ensures minimal energy loss and efficient current transfer.

Superior Crimp Performance: The acid-washed surface provides a clean, oxide-free interface for reliable crimping and reduced electrical resistance.

Corrosion Resistance: Acid washing passivates the surface, enhancing resistance to oxidation and environmental degradation.

Mechanical Strength: Robust construction withstands vibration, thermal cycling, and mechanical stress.

Versatile Sizing: Available in multiple sizes (e.g., DT185 for 185 mm² cables) to accommodate various conductor cross-sections.

Compliance: This Electrical Connector meets international standards (e.g., IEC 61238, UL 486) for safety and performance.


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7. Applications

Power Distribution: Connecting cables to circuit breakers, switchgear, and distribution boards in substations.

Industrial Equipment: Terminations for motors, transformers, generators, and control panels.

Renewable Energy Systems: Interconnecting cables in solar farms, wind turbines, and battery storage (e.g., UPS, electric vehicles).

Transportation Infrastructure: Railway electrification, airport ground power systems, and EV charging stations.

Telecommunications and Data Centers: Grounding and power connections in critical infrastructure.

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