Import Copper Parallel Groove Clamps — Buy in Bulk from Supplier in China

Copper parallel groove clamps from Zhejiang Tianhong Electric Power Fitting Co., Ltd are precision-engineered for tap-off connections of copper conductors in electrical systems. The clamps are manufactured from high-conductivity copper to ensure low resistance and long-term reliability in power distribution networks. Their design includes parallel grooves that match standard conductor diameters, providing a secure mechanical and electrical joint under vibration and thermal cycling.

The material is cold-worked copper, typically C11000 or C10100 grade, offering a minimum conductivity of 100% IACS as standard for electrical applications. The clamps undergo a tin or silver plating process to enhance corrosion resistance, particularly in outdoor or humid environments. Standard industry tolerances for groove dimensions are ±0.1 mm, ensuring compatibility with common conductor sizes from 6 mm² to 300 mm², though exact ranges depend on the specific model.

These clamps are primarily used in utilities, substations, and renewable energy installations where reliable tap-offs are critical. Electrical contractors and OEMs source them for projects requiring durable, low-maintenance connections in medium to high-voltage systems. Buyers should confirm the exact conductor size range, plating material, and temperature rating for their application, as these vary by model and are not universally specified in the listing.

Zhejiang Tianhong Electric Power Fitting Co., Ltd is based in Wenzhou, Zhejiang Province, with its registered address at No.82, Yuedu North Road, Changhong, Liushi. The company specializes in the manufacture of electrical power fittings, including clamps, connectors, and terminals, serving domestic and international markets. Its profile indicates an imported supplier tier with a harbor trust tier, though its response rate and average response time are currently unrecorded.

The supplier focuses on copper-based components for electrical infrastructure, with a product range that aligns with utility and industrial standards. While the listing does not specify certifications or production capacity, the company’s address and specialization suggest a regional manufacturer with experience in electrical hardware. Buyers are advised to directly confirm quality control processes, lead times, and compliance documentation before placing orders.