Connecting medium‑voltage (MV) power cables—especially in the 36 kV range—is one of the most critical tasks in grid construction, renewable energy projects, and utility maintenance. When conductor sizes reach 120–300 mm², installers face challenges: ensuring proper installation, avoiding oxidation, achieving stable contact resistance, and maintaining long‑term reliability under thermal cycling.
The easiest, safest way to connect 36 kV Al/Cu 120–300 mm² power cables is to use IEC‑61238‑1 type‑tested mechanical shear‑bolt connectors, because they eliminate crimping risks, guarantee controlled compression, and work reliably across both aluminum and copper conductors.
Shear‑bolt connectors solve this by using pre‑engineered shear heads that break off at the exact torque needed. Installers only need standard wrenches.
Mechanical shear bolt connectors prevent galvanic corrosion, maintain stable contact resistance, offer wide compatibility (Al/Cu 120–300 mm²)
The gold standard for MV connectors is IEC‑61238‑1. A type‑tested connector has passed electric test and mechanical test. This ensures the connector performs safely under real MV operating conditions.
The CCBVzT-4-120-300 shear head bolt mechanical connector from Jera Line removes these dependencies: four calibrated shear-head bolts break off automatically at the preset torque with a standard hex key, delivering consistent contact pressure on every joint.
It is a bolted MV splice fitting manufactured from tin-plated aluminum alloy, with UV-resistant polymer compensating size rings. It is engineered for aluminum or copper cables from 120 to 300 mm² in 0.4–36 kV distribution systems. The installer tightens the bolt with a standard hex key, the hex head shears off automatically, leaving a clean, tamper-evident joint. The tin-covered body supports AL/AL, CU/CU and AL/CU combinations, making it a true bimetal MV mechanical connector.
The shear-head mechanical connector CCBVzT-36-4-120-300 is used in 0.4–36 kV aluminum or copper cable distribution systems:
1.Power distribution systems — connect aluminum or copper power cables in utility networks and industrial substations.
2.Grounding systems — connect ground wires to grounding rods and other grounding components.
3.MV overhead and underground cable joints — field splices where compression tooling is impractical or slow.
Direct factory supply & competitive pricing — as a direct factory in Yuyao, Ningbo, China, Jera Line eliminates traders and offers competitive ex-works prices; standard models are held in stock for fast delivery.
Quality-testing procedures — our in-house laboratory verifies contact resistance, tensile strength and shear-bolt torque on every batch.
IEC 61238-1 compliance — fully tested to IEC 61238-1 by independent third-party laboratory.
OEM/ODM services — laser marking, custom packaging and project-specific product development supported.
Global experience — hardware exported to over 60 countries across Europe, Asia, the Middle East, Africa and South America since 2012.
The Easiest Way to Connect 36kV Al/Cu 120-300 mm² Power Cables Safely is to us CCBVzT-36-4-120-300 shear head bolt mechanical connector, it combines four calibrated shear-head bolts, a tin-plated aluminum alloy body and third-party type test compliance into a fast, tool-light, field-proven MV cable joint.
Instead of bringing a hydraulic crimp-er, guaranteeing the same clamping pressure on every 120-300 mm² aluminum or copper cable, whether it is AL/AL, CU/CU or AL/CU. The tin-plated aluminum body and UV-resistant polymer compensating ring hold up in 0.4–36 kV distribution systems for the full service life of the installation.
If you require official technical datasheets, free pre-order samples or formal project quotations, please do not hesitate to contact our sales team. We support bulk orders, custom OEM packaging, laser marking and tender-document technical submission for distribution projects worldwide — whether you are a utility procurement team, an EPC contractor bidding on MV substations, or a distributor looking for a reliable direct-factory source of shear-bolt mechanical connectors.
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