Jera Line is pleased to announce that the bolted type mechanical terminal lug CLB-2K-VzT-36-2-70-240 has successfully passed the full IEC 61238-1 type test program, conducted by an independent accredited laboratory.

This achievement confirms the product’s compliance with international performance requirements for medium-voltage mechanical connectors, validating its electrical performance, thermal stability, mechanical strength, and short-circuit withstand capability. The certification ensures safe, reliable, and long-term operation in demanding power distribution networks.

About the Product Bolted type mechanical terminal lug 70-240mm2

The CLB-2K-VzT-36-2-70-240 is a long‑palm mechanical terminal lug equipped with shear‑head torque bolts, designed for reliable termination of 70–240 mm² aluminum or copper conductors. Its extended palm provides stable mounting on MV equipment, while the calibrated shear‑head bolts ensure uniform compression and correct installation without the need for crimping tools.

Key Features

• Wide conductor range: Suitable for 70–240 mm² Al/Cu conductors
• Long‑palm design: Ensures stable mounting and improved mechanical support
• Tin‑plated aluminum body: Offers excellent conductivity and corrosion resistance
• Tool‑free torque control: Installation with standard wrenches — no crimping tools required
• MV‑ready construction: Designed for medium‑voltage cable terminations and harsh environments
• Competitive price: Jera Line is a direct factory location in China

IEC‑61238‑1 Type Test Scope

Jera Line is a manufacturer of shear‑head bolt connectors for 70-240mm² conductors. Our products have successfully passed all required electrical and mechanical tests in accordance with IEC‑61238‑1, demonstrating reliable performance for medium‑voltage applications.

Electrical Type Tests

• Temperature Rise Test: Confirms stable electrical performance and low resistance under continuous current load.
• High‑Current Cycling: Verifies long‑term conductivity and the connector’s ability to withstand thermal stress and repeated heating cycles.
• Contact Resistance Measurement: Ensures low, stable, and consistent resistance at the conductor‑to‑lug interface.

Mechanical Type Tests

• Conductor Pull‑Out / Retention Test: Evaluates the connector’s gripping capability and ensures the conductor remains securely retained under axial mechanical load.
• Shear‑Head Bolt Torque Verification: Confirms that each bolt shears at the calibrated torque level, guaranteeing correct compression and reliable installation quality.
• Mechanical Strength & Structural Integrity: Demonstrates the lug’s robustness during installation and verifies long‑term durability under real‑world service conditions.

Passing all these tests confirms that the CLB-2K-VzT-36-2-70-240 meets the highest standards for utility‑grade MV connectors.

Jera Line — Your Type‑Tested mechanical shearbolt cable lugs Manufacturer

Jera Line is a professional manufacturer of type-tested mechanical shear-bolt cable lugs, delivering safe, reliable, and utility-approved connection solutions for low- and medium-voltage power.

• IEC 61238-1 Type-Tested Factory

Jera Line mechanical shear-bolt lugs are fully tested in independent accredited laboratories in accordance with IEC 61238-1.

• l oven Mechanical Shear-Bolt Technology: Our shear-bolt design ensures controlled without the need for hydraulic crimping tools.
• ln-House Electrical & Mechanical Laboratories: Continuous quality control is ensured through in-house electrical and mechanical testing laboratories.
• Direct China Factory Manufacturing: Jera Line controls the entire process—from design and raw materials to machining, surface treatment, and final inspection—delivering stable quality, full traceability, and competitive pricing.
• Wide Conductor Range & Compatibility: Designed for aluminum and copper conductors, Jera Line shear-bolt lugs cover broad cross-section ranges, reducing inventory complexity for utilities and EPC contractors.

Jera Line — Your Type-Tested Mechanical Shear-Bolt Cable Lugs Manufacturer, we are committed to delivering safe, durable, and installation‑friendly MV connection solutions for global power distribution networks.

If you have any inquires, please feel free to contact us.