Product Introduction
JB-4 Aluminum PG Clamp
JB-4 PG Clamps (3-Bolt Aluminum Parallel Groove Connector)
Suitable for conductor cross-sections of 120–185 mm², this premium JB-4 PG Clamp is specifically engineered for parallel conductor connections on 10kV/33kV urban power distribution networks. It provides an exceptional electrical joint for splicing residential area distribution lines and industrial factory branch trunk lines.
Featuring a high-conductivity aluminum alloy body secured by an advanced three-bolt locking mechanism, this heavy-duty clamp ensures a powerful, evenly distributed clamping torque, making it the ideal specialized electrical fitting for medium-to-large diameter overhead transmission lines.
Technical Parameters
Check the standard parameters below to find the precise 3-bolt Aluminum PG Clamp dimensions that match your specific overhead conductor line wire gauges:
| Model | Applicable steel strand diameter (mm) | Main dimensions(mm) | Quality(kg) | Material |  |
||||
| B | M | L | R | Number of bolts | |||||
| JB-0 | 5.0～7.0 | 38 | 10 | 72 | 6 | 2 | 0.2 | Aluminum alloy | |
| JB-1 | 7.5～10.5 | 44 | 12 | 86 | 6 | 2 | 0.3 | Aluminum alloy | |
| JB-2 | 10.8～14.0 | 50 | 12 | 114 | 7 | 3 | 0.7 | Aluminum alloy | |
| JB-3 | 14.5～17.5 | 62 | 16 | 140 | 8.5 | 3 | 1.1 | Aluminum alloy | |
| JB-4 | 18.0～22.0 | 70 | 16 | 160 | 10 | 3 | 1.5 | Aluminum alloy | |
| JB-5 | 22.5～26.6 | 80 | 18 | 180 | 10 | 3 | 2 | Aluminum alloy | |
| JB-6 | 26.5～30.0 | 90 | 20 | 200 | 12 | 3 | 2.6 | Aluminum alloy | |
Detailed technical parameters
JB-4 Conductor Compatibility: Masterfully calibrated for large overhead cables, perfectly accommodating an applicable conductor diameter range of 18.5–22.0 mm (ideal for standard ACSR and stranded aluminum wires).
3-Bolt High-Torque Specs: Engineered with robust dimensions of B=75 mm, M=14 mm, L=110 mm, and R=10 mm, utilizing 3 heavy-duty galvanized bolts to distribute extreme mechanical holding power uniformly along the conductor.
Industrial Solid Weight: Weighing a substantial 1.1 kg per unit, its dense aluminum body ensures high tensile strength, exceptional current-carrying efficiency, and lower contact resistance.
Product Features
Key Features of JB-4 Heavy-Duty Aluminum PG Clamps
Premium Extruded Aluminum Alloy: Manufactured from high-purity, heavy-duty aluminum profiles that deliver excellent electrical conductivity and superior creep resistance, maintaining steady grid connection integrity over decades.
Precision-Milled 3-Bolt Grooves: Features precision-forged dual-arc grooves designed to closely hug 18.5-22mm cables. The 3-bolt heavy mechanical design ensures uniform distribution of clamping pressure, completely preventing strand flattening or localized hot-spots.
Anti-Oxidization Surface Passivation: The aluminum body undergoes an advanced anodized surface treatment to guarantee elite corrosion resistance against harsh outdoor moisture, acid rain, and environmental salt spray.
Grid-Certified Compliance Standards: Fully complies with international and national specifications for electrical fittings (GB/T 2314, GB/T 2315, DL/T 764). Rigorously factory-tested for mechanical slip load and temperature rise to ensure total safety for utility-grade power grid infrastructure.
Contact Us
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Email: boogie@jkte888.com
Business Contact: +86 189-2579-5886 (Same number for WhatsApp)
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