Mechanical Aluminum Shearhead Cable Connector CCBI-10-4-70-120 | China Manufacturer

As medium-voltage (MV) 10kV power distribution networks keep expanding in urban, rural and industrial areas worldwide, power utilities, EPC contractors and electrical wholesalers demand cable connection terminals with stable conductivity, anti-corrosion performance and simplified on-site installation. Mechanical shearhead bolt cable connectors have gradually replaced traditional hydraulic crimp lugs for their torque self-calibration design and zero special tool requirement. 

Jera Line CCBI-10-4-70-120 four-bolt aluminum shearhead cable connector is a utility-grade terminal specially developed for 70–120 mm² aluminum conductors under 10kV medium voltage systems. Produced with tin-coated high-strength aluminum alloy and fully tested per IEC-61238-1-3 international standards, this connector delivers consistent clamping force and long-term maintenance-free operation for overhead and underground MV power projects. This blog will detail product definition, official technical specifications, core structural features, mainstream application scenarios and core cooperation advantages of sourcing this connector directly from Jera Line factory.

What Is CCBI-10-4-70-120 Mechanical Aluminum Shearhead Connector?

The CCBI-10-4-70-120 four-shear-bolt cable connector is a tubular butt joint terminal independently developed by Jera Line for 10kV medium voltage aluminum cable interconnection. Different from ordinary 2-bolt mechanical connectors with uneven unilateral pressure, this model adopts four symmetrically distributed shear-off torque bolts, which uniformly wrap the cable conductor around the circumference during tightening to eliminate local stress concentration and hidden hot spots.

The entire connector body is made of precision extruded aluminum alloy with uniform tin plating on the inner and outer surfaces, forming an isolation buffer layer to avoid electrochemical corrosion when connecting mixed copper and aluminum cables. Each bolt is preset with fixed breaking torque; installers only need a standard hex key for tightening, and the bolt head will automatically shear off once reaching the calibrated torque value, completely avoiding installation quality deviation caused by under-tightening or over-compression by inexperienced workers. No hydraulic crimping machine, torque wrench or auxiliary pressing equipment is required on construction sites, cutting tool procurement and transportation costs significantly.

Technical Specificaion:

CCBI-10-4-70-120 connectors adopt anti-rust aluminum alloy shear bolts and integrated closed tubular structure. The inner cavity reserves space for filling conductive anti-oxidation grease, which can be pre-filled according to customer requirements to further reduce long-term contact resistance. Each production batch can provide dimensional inspection, tensile resistance, temperature rise cycle and dielectric withstand voltage full set of test certificates.

Features

• Wide cable application: Suitable for electrical cables ranging from 70 to 120 mm2
• High mechanical strength, Offers steady shear head torque for reliable performance
• Fast and convenient installation process with a hex key
• Material: Aluminum Alloy
• Manufactured according to standard IEC-61238-1-3
• Factory location in China

Application

• 10kV Overhead Medium Voltage Transmission & Distribution Lines Ideal for butt joint connection of 70–120 mm² aluminum aerial bundled cables in urban and rural overhead MV distribution networks, realizing reliable long-distance cable splicing without secondary maintenance.

• Substation & Ring Main Unit Cable Interconnection Suitable for cable transition joints inside transformer rooms, RMU ring main units and box-type substations, solving loose joint problems caused by long-term equipment vibration and temperature fluctuation.

• Distributed Photovoltaic 10kV Grid-Connected Underground Lines Adapt to buried medium voltage cable joints of large ground photovoltaic power stations, stably transmitting fluctuating new energy current under frequent outdoor temperature changes.

• Rural & Old City MV Grid Renovation Projects Most rural reconstruction projects adopt 70–120 mm² large-section aluminum cables; the four-bolt balanced clamping structure effectively solves poor contact defects commonly seen in single-bolt terminals applied on medium-large aluminum conductors.

• Power Station Grounding & Auxiliary Cable Connection Can be used for stable connection of grounding branch aluminum cables in power plants and industrial park power distribution stations, with excellent anti-corrosion performance for long-term underground buried use.

Why Choose Jera Line as Your Mechanical Shearhead Connector Supplier?

1.Direct factory pricing

Jera Line is established in 2012 has specialized in electrical accessories for overhead and underground power systems. Direct factory based in China, produced over 95% products on-site, enable to offer competitive prices.

2.Strict quality control procedures

To meet the demanding requirements of MV power networks, Jera Line connectors undergo rigorous routine laboratory testing to verify their performance under a wide range of operating conditions. Manufactured in compliance with international standards such as IEC-61238, these connectors are designed to deliver reliable electrical and mechanical performance. Product quality, safety, and long-term reliability are further validated through independent third-party testing reports, providing customers with confidence in every installation.

3.OEM and ODM Service

To meet the market requirements ,Jera Line offers OEM and ODM services to our customers, we are more than willing to provide customers with the maximum support within our capabilities.

Conclusion

For 10kV medium voltage power distribution projects requiring balanced clamping force, anti-corrosion durability and efficient tool-free installation, Jera Line CCBI-10-4-70-120 four-bolt mechanical aluminum shearhead cable connector is a reliable upgrade alternative to traditional hydraulic crimp lugs and single-bolt mechanical terminals. With four symmetric shear bolt design, universal copper-aluminum compatibility, full IEC standard certification and direct factory cost advantages, this product has become the preferred cable splicing solution for global power distributors, substation contractors and photovoltaic new energy integrates.

If you are sourcing standardized, cost-effective 70–120 mm² MV aluminum cable connectors for overhead or buried power networks, feel free to contact the Jera Line technical team to apply for free test samples, download full official technical datasheets and obtain exclusive volume-based project quotations.