GTL
Mingxu
Precision-engineered from 99.9% high-purity electrolytic copper, this clamp features a distinctive C-shaped design that allows tool-free initial positioning before final tightening, significantly reducing installation time. Compliant with UL 467 and IEC 62561-1 standards, it provides reliable low-resistance connections for copper conductors in industrial, commercial, and utility applications. Its robust construction ensures consistent performance in both indoor and outdoor environments, making it a preferred choice for electrical contractors seeking efficiency without compromising on safety.
Manufactured from electrolytic tough pitch (ETP) copper with a minimum conductivity of 97% IACS, the clamp minimizes contact resistance and ensures efficient current dissipation. The solid copper construction eliminates potential failure points found in plated alternatives, maintaining long-term electrical integrity even under cyclic loading conditions.
The unique C-profile allows for tool-free pre-installation on conductors, enabling precise positioning before final torque application. This design feature reduces installation time by up to 40% compared to traditional bolted clamps. The clamp accommodates conductor sizes from 10 mm² to 150 mm² with a ±2 mm tolerance for alignment variations, ensuring versatility across different installation scenarios.
The copper surface undergoes a bright tin plating process (8-12 µm thickness) to enhance corrosion resistance in harsh environments. This plating provides protection against atmospheric contaminants, industrial pollutants, and coastal salt spray, maintaining conductivity even after prolonged exposure to moisture.
In manufacturing facilities and processing plants, the clamp establishes critical grounding connections for machinery, control panels, and conveyor systems. Its reliable performance ensures proper fault current dissipation, protecting equipment from electrical surges and minimizing downtime.
Electrical contractors utilize the clamp in commercial buildings for bonding metal components, including HVAC systems, structural steel, and electrical enclosures. It ensures compliance with electrical safety codes in hospitals, data centers, and high-rise buildings where reliable grounding is essential.
Utility companies deploy the clamp in substation grounding grids and overhead line connections, providing secure bonds between conductors, ground rods, and equipment enclosures. Its corrosion resistance makes it suitable for both urban and rural utility applications, including renewable energy installations.
Proper installation requires torque values ranging from 12 N·m for 10 mm² conductors to 40 N·m for 150 mm² conductors. Always use a calibrated torque wrench to ensure optimal contact pressure without damaging conductor strands.
While designed for copper conductors, the clamp can be used with aluminum conductors when paired with a copper-aluminum transition sleeve to prevent galvanic corrosion. Direct contact between copper and aluminum without proper isolation is not recommended.
The C-shaped profile allows contractors to position the clamp on conductors without holding it during initial tightening, enabling one-person installation. This design also facilitates repositioning if needed before final torque application, reducing the risk of installation errors.
When installed within rated parameters, the clamp provides a service life of 30+ years. The tin-plated surface maintains corrosion resistance through 10,000+ thermal cycles, equivalent to the operational lifespan of modern electrical infrastructure.
| Item No. | D1±0.2 | d1±0.2 | D2±0.2 | d2±0.2 | L1±2 | L2±2 | L±2 | Package (pcs) | Gross weight (kg) |
| GTL-16 | 9 | 5.7 | 10 | 6.5 | 25 | 33 | 70 | 1440 | 27 |
| GTL-25 | 10 | 6.5 | 12 | 7.5 | 27 | 37 | 75 | 960 | 25 |
| GTL-35 | 11 | 7.5 | 14 | 8.5 | 29 | 40 | 84 | 600 | 21 |
| GTL-50 | 12 | 8.5 | 16 | 10.2 | 30 | 45 | 89 | 540 | 22 |
| GTL-70 | 14 | 10.0 | 18 | 11.5 | 35 | 48 | 98 | 360 | 21 |
| GTL-95 | 16 | 11.5 | 21 | 13.5 | 38 | 50 | 106 | 240 | 19 |
| GTL-120 | 18 | 13.5 | 23 | 15.0 | 40 | 50 | 110 | 240 | 23 |
| GTL-150 | 20 | 15.0 | 25 | 16.5 | 43 | 53 | 115 | 180 | 23 |
| GTL-185 | 22 | 16.5 | 27 | 18.5 | 45 | 57 | 125 | 120 | 18 |
| GTL-240 | 24 | 18.5 | 30 | 21.0 | 48 | 62 | 130 | 120 | 22 |
| GTL-300 | 27 | 21.0 | 34 | 23.5 | 53 | 65 | 145 | 72 | 20 |
| GTL-400 | 30 | 23.5 | 38 | 26.5 | 60 | 70 | 150 | 54 | 22 |
| GTL-500 | 34 | 26.5 | 44 | 29.0 | 64 | 78 | 160 | 54 | 24 |
Precision-engineered from 99.9% high-purity electrolytic copper, this clamp features a distinctive C-shaped design that allows tool-free initial positioning before final tightening, significantly reducing installation time. Compliant with UL 467 and IEC 62561-1 standards, it provides reliable low-resistance connections for copper conductors in industrial, commercial, and utility applications. Its robust construction ensures consistent performance in both indoor and outdoor environments, making it a preferred choice for electrical contractors seeking efficiency without compromising on safety.
Manufactured from electrolytic tough pitch (ETP) copper with a minimum conductivity of 97% IACS, the clamp minimizes contact resistance and ensures efficient current dissipation. The solid copper construction eliminates potential failure points found in plated alternatives, maintaining long-term electrical integrity even under cyclic loading conditions.
The unique C-profile allows for tool-free pre-installation on conductors, enabling precise positioning before final torque application. This design feature reduces installation time by up to 40% compared to traditional bolted clamps. The clamp accommodates conductor sizes from 10 mm² to 150 mm² with a ±2 mm tolerance for alignment variations, ensuring versatility across different installation scenarios.
The copper surface undergoes a bright tin plating process (8-12 µm thickness) to enhance corrosion resistance in harsh environments. This plating provides protection against atmospheric contaminants, industrial pollutants, and coastal salt spray, maintaining conductivity even after prolonged exposure to moisture.
In manufacturing facilities and processing plants, the clamp establishes critical grounding connections for machinery, control panels, and conveyor systems. Its reliable performance ensures proper fault current dissipation, protecting equipment from electrical surges and minimizing downtime.
Electrical contractors utilize the clamp in commercial buildings for bonding metal components, including HVAC systems, structural steel, and electrical enclosures. It ensures compliance with electrical safety codes in hospitals, data centers, and high-rise buildings where reliable grounding is essential.
Utility companies deploy the clamp in substation grounding grids and overhead line connections, providing secure bonds between conductors, ground rods, and equipment enclosures. Its corrosion resistance makes it suitable for both urban and rural utility applications, including renewable energy installations.
Proper installation requires torque values ranging from 12 N·m for 10 mm² conductors to 40 N·m for 150 mm² conductors. Always use a calibrated torque wrench to ensure optimal contact pressure without damaging conductor strands.
While designed for copper conductors, the clamp can be used with aluminum conductors when paired with a copper-aluminum transition sleeve to prevent galvanic corrosion. Direct contact between copper and aluminum without proper isolation is not recommended.
The C-shaped profile allows contractors to position the clamp on conductors without holding it during initial tightening, enabling one-person installation. This design also facilitates repositioning if needed before final torque application, reducing the risk of installation errors.
When installed within rated parameters, the clamp provides a service life of 30+ years. The tin-plated surface maintains corrosion resistance through 10,000+ thermal cycles, equivalent to the operational lifespan of modern electrical infrastructure.
| Item No. | D1±0.2 | d1±0.2 | D2±0.2 | d2±0.2 | L1±2 | L2±2 | L±2 | Package (pcs) | Gross weight (kg) |
| GTL-16 | 9 | 5.7 | 10 | 6.5 | 25 | 33 | 70 | 1440 | 27 |
| GTL-25 | 10 | 6.5 | 12 | 7.5 | 27 | 37 | 75 | 960 | 25 |
| GTL-35 | 11 | 7.5 | 14 | 8.5 | 29 | 40 | 84 | 600 | 21 |
| GTL-50 | 12 | 8.5 | 16 | 10.2 | 30 | 45 | 89 | 540 | 22 |
| GTL-70 | 14 | 10.0 | 18 | 11.5 | 35 | 48 | 98 | 360 | 21 |
| GTL-95 | 16 | 11.5 | 21 | 13.5 | 38 | 50 | 106 | 240 | 19 |
| GTL-120 | 18 | 13.5 | 23 | 15.0 | 40 | 50 | 110 | 240 | 23 |
| GTL-150 | 20 | 15.0 | 25 | 16.5 | 43 | 53 | 115 | 180 | 23 |
| GTL-185 | 22 | 16.5 | 27 | 18.5 | 45 | 57 | 125 | 120 | 18 |
| GTL-240 | 24 | 18.5 | 30 | 21.0 | 48 | 62 | 130 | 120 | 22 |
| GTL-300 | 27 | 21.0 | 34 | 23.5 | 53 | 65 | 145 | 72 | 20 |
| GTL-400 | 30 | 23.5 | 38 | 26.5 | 60 | 70 | 150 | 54 | 22 |
| GTL-500 | 34 | 26.5 | 44 | 29.0 | 64 | 78 | 160 | 54 | 24 |
