The YQUNIQUE JG-Type Copper Tube Terminal is manufactured from high-purity copper to ensure excellent electrical conductivity and reliable current transmission. The entire terminal is precision tin-plated to improve corrosion resistance, extend service life, and provide long-term protection in demanding environments.
Featuring a closed-barrel design without an inspection hole, it effectively seals the crimped conductor against moisture, dust, and other contaminants, making it an ideal choice for power distribution, industrial electrical systems, renewable energy equipment, and other applications requiring secure, durable electrical connections.
The Copper Tube Terminal (JG-Type) is a premium electrical fastening component engineered for safely terminating and connecting medium-to-heavy gauge power cables. In demanding electrical installations, a secure and low-resistance connection is absolutely critical to prevent power loss, arcing, and dangerous heat buildup.
The terminal body of our JG-Type cable lug is manufactured from high-quality copper, ensuring maximum electrical conductivity. To provide exceptional longevity and environmental protection, the entire copper body undergoes a specialized tin plating process. Unlike some other terminal designs, the JG-Type typically features a closed-barrel design (without an inspection hole), which makes it an excellent choice for environments where keeping moisture or contaminants out of the crimped wire is highly prioritized.

| Item No. | Screw dia. d2 (mm) | Dimension (mm) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Cable Size (mm²) | D | d | W | L1 | L | t1 | t | ||
| JG10-6 | 6.4 | 10 | 8.0 | 5.4 | 12.0 | 18.0 | 38.0 | 2.5 | 1.3 |
| JG10-8 | 8.4 | 8.0 | 5.4 | 12.0 | 18.0 | 40.0 | 1.9 | 1.3 | |
| JG10-10 | 10.5 | 8.0 | 5.4 | 14.0 | 18.0 | 40.0 | 1.9 | 1.3 | |
| JG16-6 | 6.4 | 16 | 9.0 | 6.0 | 13.0 | 18.0 | 40.0 | 2.9 | 1.5 |
| JG16-8 | 8.4 | 9.0 | 6.0 | 13.0 | 18.0 | 40.0 | 2.7 | 1.5 | |
| JG16-10 | 10.5 | 9.0 | 6.0 | 16.0 | 18.0 | 40.0 | 2.7 | 1.5 | |
| JG16-12 | 13.0 | 9.0 | 6.0 | 17.0 | 18.0 | 45.0 | 2.6 | 1.5 | |
| JG25-6 | 6.4 | 25 | 10.0 | 7.0 | 14.0 | 19.0 | 45.0 | 2.9 | 1.5 |
| JG25-8 | 8.4 | 10.0 | 7.0 | 14.0 | 19.0 | 45.0 | 2.7 | 1.5 | |
| JG25-10 | 10.5 | 10.0 | 7.0 | 15.0 | 19.0 | 45.0 | 2.7 | 1.5 | |
| JG25-12 | 13.0 | 10.0 | 7.0 | 19.0 | 19.0 | 47.0 | 2.4 | 1.5 | |
| JG35-6 | 6.4 | 35 | 11.0 | 8.0 | 16.0 | 22.0 | 50.0 | 2.9 | 1.5 |
| JG35-8 | 8.4 | 11.0 | 8.0 | 16.0 | 22.0 | 50.0 | 2.9 | 1.5 | |
| JG35-10 | 10.5 | 11.0 | 8.0 | 16.0 | 22.0 | 50.0 | 2.9 | 1.5 | |
| JG35-12 | 13.0 | 11.0 | 8.0 | 19.0 | 22.0 | 54.0 | 2.6 | 1.5 | |
| JG50-6 | 6.4 | 50 | 13.0 | 10.0 | 18.5 | 23.0 | 54.5 | 2.9 | 1.5 |
| JG50-8 | 8.4 | 13.0 | 10.0 | 18.5 | 23.0 | 54.5 | 2.9 | 1.5 | |
| JG50-10 | 10.5 | 13.0 | 10.0 | 18.5 | 23.0 | 54.5 | 2.9 | 1.5 | |
| JG50-12 | 13.0 | 13.0 | 10.0 | 19.0 | 23.0 | 54.5 | 2.9 | 1.5 | |
| JG70-8 | 8.4 | 70 | 16.0 | 12.0 | 22.5 | 25.0 | 60.0 | 3.9 | 2.0 |
| JG70-10 | 10.5 | 16.0 | 12.0 | 22.5 | 25.0 | 60.0 | 3.9 | 2.0 | |
| JG70-12 | 13.0 | 16.0 | 12.0 | 22.5 | 25.0 | 60.0 | 3.9 | 2.0 | |
Superior Conductivity: The terminal body is forged from premium copper, ensuring optimal current flow and minimal voltage drop across your electrical systems.
Corrosion-Resistant Plating: The exterior features a durable tin plating. This protective layer prevents rust and copper oxidation, making these lugs highly suitable for humid, marine, or harsh industrial environments.
Comprehensive Size Range: We provide a wide array of standardized sizes, perfectly accommodating cable cross-sections from 10 mm² up to 70 mm².
Versatile Mounting Options: The flat mounting pad is pre-punched with precise screw hole diameters (Dimension “d2”), available in 6.4mm, 8.4mm, 10.5mm, and 13.0mm configurations to fit various stud and bolt sizes.
Robust Closed-Barrel Design: The continuous, un-slotted tubular barrel ensures the cable strands remain tightly bundled during crimping, providing high mechanical pull-out strength.
Due to their tin-plated copper construction, JG-Type Copper Tube Terminals are highly versatile and widely deployed across multiple demanding sectors:
Electrical Switchgear & Panels: Terminating main power lines and grounding cables inside low and medium-voltage distribution cabinets.
Marine & Offshore: The tin plating provides vital protection against corrosive saltwater environments, making them ideal for boat wiring and offshore platform power systems.
Automotive & RV Power: Splicing heavy-duty battery cables, alternators, and high-amp audio power lines in vehicles and recreational transport.
Renewable Energy Systems: Creating highly conductive and weather-resistant connections for solar panel inverters and wind turbine battery banks.
Achieving a professional, long-lasting connection with our JG-Type cable lugs is a straightforward process:
Cable Preparation: Strip the insulation off your power cable. The exposed bare wire length should accurately match the barrel length (Dimension “L1”) of the terminal.
Wire Insertion: Slide the bare copper strands fully into the closed barrel of the JG lug.
Heavy-Duty Crimping: Use a proper hydraulic or mechanical crimping tool with the correct die size to compress the barrel tightly around the wire.
Weatherproofing (Optional): Slide a piece of dual-wall, adhesive-lined heat shrink tubing over the crimped barrel and heat it to create a completely waterproof seal.
Secure Mounting: Place the terminal pad over your mounting stud and secure it with a bolt matching the “d2” screw hole diameter.
Uncompromising Quality: The UNIQUE brand stands for reliability. By using thickened material, we ensure that every crimp holds tight and every connection remains safe.
One-Stop Procurement: With a complete range of specifications covering 6 mm² to 400 mm², we can supply your entire project’s terminal needs in a single order.
Engineering Flexibility: Your projects shouldn’t be limited by standard catalogs. Our ability to manufacture custom non-standard products means we can adapt hole sizes, barrel lengths, or pad widths to solve your unique assembly challenges.
1. What is the JG-Type Copper Tube Terminal used for?
The JG-Type Copper Tube Terminal is designed for securely terminating copper conductors in electrical power and control systems.
2. What material is the terminal made of?
The terminal is manufactured from high-purity copper for excellent electrical conductivity and reliable performance.
3. Is the terminal suitable for copper conductors?
Yes. It is specifically designed for copper cables and copper conductors.
4. What cable sizes are available?
A wide range of sizes is available to suit different cable cross-sections and installation requirements.
5. Does the terminal provide reliable electrical connections?
Yes. Its precision-formed barrel provides secure crimping with low contact resistance and long-term reliability.
6. Can customized sizes be manufactured?
Yes. Custom dimensions, stud hole sizes, and specifications are available according to customer drawings or requirements.
7. What industries use this product?
It is widely used in power distribution, switchgear, transformers, industrial control panels, renewable energy systems, and electrical equipment manufacturing.
8. What information is required for quotation?
Please provide the cable size, stud hole diameter, material requirements, surface finish, and order quantity.
9. Can samples be provided before bulk orders?
Yes. Samples are available for evaluation before mass production.
10. Do you support OEM and ODM services?
Yes. We provide OEM and ODM manufacturing services, including customized dimensions, packaging, and branding.
YQUNIQUE provides 1 year warranty period, during which our company will undertake all after-sale services and spare parts free of chargee
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