Terminal Blocks Subjected To Corrosion Salt Spray Testing For Over 96 Hours
To meet the electrical connection requirements in harsh environments, the terminal blocks that have undergone over 96 hours of corrosion-resistant salt spray testing have become core components in coastal, chemical, outdoor, and other scenarios through material upgrades, structural optimizations, and technological innovations. This type of terminal needs to be tested according to IEC 60068-2-52 or ASTM B117 standards, and there should be no significant corrosion after 96 hours of salt spray exposure, with a contact resistance change of ≤ 30%.
The core advantage comes from triple technical support: the material is made of T2 copper, 316L stainless steel and other substrates, matched with nickel plating, silver plating or zinc nickel alloy coating (thickness ≥ 12 μ m), and some high-end models use gold coating to enhance corrosion resistance; The structural design incorporates double-layer sealing rubber rings (fluororubber or silicone rubber) and IP67+protection level. The DT series oil blocking terminals achieve IP68 protection through inner wall sealing and heat shrink tubing to prevent salt spray intrusion; Chemical passivation, nano sealing coating and other technologies are used in the process to form a dense anti-corrosion layer.
Typical products such as DT-50 oil blocking terminal, suitable for 35-50mm ² wire diameter, salt spray test for 96 hours without corrosion, have been successfully applied in offshore wind power projects, with a failure rate reduced by 90%; The AF2 series M12 connector adopts a stainless steel shell and a triple sealing structure to meet the long-term use needs of industrial salt spray environments. In addition, Weiting Hardware's stainless steel stamped terminals, TLK70-8-90D copper tube terminals, etc. have all passed 96 hour salt spray certification and are suitable for multiple fields such as new energy, automobiles, and healthcare.
When selecting, it is necessary to match the wire diameter and current parameters, and prioritize products with fluororubber seals and compliance certifications. At the same time, standardized crimping and installation processes are required to fully utilize their corrosion resistance and ensure the long-term stable operation of the electrical system.
