Product Introduction：
The SC type copper lug, commonly referred to as an oil-sealed copper terminal, is an essential component for connecting power cables to electrical equipment. It is manufactured from high‑purity T2 copper rod (with a copper content of no less than 99.9%) through precision cold extrusion or hot forging, resulting in a dense, void-free internal structure and achieving a conductivity of over 97% IACS. This design effectively minimizes contact resistance and temperature rise, ensuring stable and safe high current transmission. The front end of the terminal features a unique oil‑blocking (grease-filled) sealing structure: a conductive grease or sealing compound is pre-filled into the wire barrel before crimping. When crimped with a hydraulic tool or hexagonal die, the compound evenly fills any microscopic gaps between the wire strands and the inner wall of the barrel, blocking air and moisture ingress and thereby preventing oxidation and corrosion of the copper conductor for long-term connection reliability. The surface can be treated with pickling and passivation, hot-dip tinning, or silver plating according to the application environment, providing a clean, bright finish as well as enhanced weather resistance and corrosion protection. SC type copper lugs are available for cable cross‑sections ranging from 1.5mm² to 1000mm² and accommodate bolt hole sizes from M4 to M20. They are widely used in high and low-voltage switch gear, distribution boxes, transformer terminals, motor connections, frequency converters, and various industrial automation equipment. During installation, it is recommended to use crimping tools matched to the wire size and follow the specified single or multi point crimping procedures to ensure mechanical pull out strength and electrical continuity. As a fundamental component in electrical assembly and wire harness processing, the SC type copper lug has become a standard choice for power connections due to its reliable conductivity, effective moisture‑proof sealing, and broad compatibility.
Product Advantages:
High-purity T2 copper construction( 99.9% Cu min.)
Superior electrical conductivity (>97% IACS)
Low contact resistance and minimal temperature rise
Effective protection against wire oxidation and moisture ingress
Wide cable size range: 1.5mm² ~500mm²
Reliable long-term connection stability under heavy loads
Product Structure Diagram：
Product Parameters：
