Superior Electrical Conductivity
Tin-plated copper body, large and flat contact surface, ultra-low contact resistance, stable current transmission, effectively avoids overheating during operation.
Bolt-type copper lugs offer tin-plated copper construction and hot-dip galvanized bolts for low-resistance, corrosion-resistant connections from 35–400mm², enabling wrench-only installation without crimping tools.
WANGYUAN Bolt-type copper lug are professionally engineered for low and medium voltage power systems, providing reliable electrical connection solutions for copper conductor steel reinforced (ACSR) to electrical equipment such as distribution transformers, switch gears and circuit breakers. The lug body is precision die-cast from high-grade copper with tin-plated surface treatment, ensuring low contact resistance and stable current transmission. The bolts and nuts adopt hot-dip galvanized color zinc process, delivering excellent corrosion resistance.
Featuring a reliable bolt fastening structure, these connectors provide uniform and stable clamping force without the need for specialized crimping tools. They can be easily installed and disassembled with a standard wrench, which greatly improves construction efficiency and facilitates later maintenance. Our product line covers all common copper conductor cross-sections from 35mm² to 400mm², suitable for various installation scenarios in power distribution networks. All products are manufactured in strict accordance with international power industry standards, ensuring safe and stable long-term operation.

| Type | L | B | T | ∅ | B1 | H1 | L1 | T1 | ∅1 |
|---|---|---|---|---|---|---|---|---|---|
| WYJB-35 | 50 | 26 | 2.3 | 10.5 | 21.5 | 15 | 20 | 2.3 | 7.5 |
| WYJB-50 | 59 | 30 | 2.8 | 10.5 | 23 | 17 | 20 | 2.8 | 9.5 |
| WYJB-70 | 61 | 34 | 3.4 | 13.25 | 26 | 20 | 20 | 3.4 | 11 |
| WYJB-95 | 67 | 35.8 | 3.9 | 14.3 | 29 | 21 | 30 | 3.9 | 13 |
| WYJB-120 | 77.5 | 36.5 | 3.8 | 22 | 39.5 | 22 | 30 | 3.8 | 14 |
| WYJB-185 | 86.5 | 47 | 5 | 22 | 40 | 27.5 | 40 | 5 | 17 |
| WYJB-240 | 90 | 48 | 5.5 | 22 | 42 | 28 | 40 | 5.5 | 18 |
| WYJB-300 | 118 | 53 | 6.5 | 22 | 46 | 32 | 60 | 6.5 | 21 |
| WYJB-400 | 120 | 59 | 7.5 | 22 | 48 | 35.5 | 60 | 7.5 | 23 |
Tin-plated copper body, large and flat contact surface, ultra-low contact resistance, stable current transmission, effectively avoids overheating during operation.
Precision die-cast integrated structure, uniform bolt clamping force, excellent vibration resistance and tensile strength, no loosening under long-term load.
Natural corrosion resistance of tin plating, hot-dip galvanized color zinc fasteners, suitable for long-term outdoor and industrial polluted environments.
No specialized crimping tools required, only a standard wrench is needed for installation. Reusable and detachable, greatly reduces maintenance time and costs.
