Thomas & Betts TN10-WJ Nylon Insulated Wire Joint

The Thomas & Betts TN10-WJ Nylon Insulated Closed-End Wire Joint from the Catamount® TN Series is a crimp connector that permanently splices and terminates 12–10 AWG copper conductors in a single closed-end joint, also available as TN10-WJ-XV. Its copper sleeve and white nylon insulation provide reliable electrical conductivity, corrosion resistance, and strain relief, and the closed-end design lets multiple conductors be pre-inserted before crimping. Key specifications include 300 VAC, 105°C rating, overall length 1.003 in (25.5 mm), body diameter 0.280 in (7.1 mm) with a maximum diameter around 0.492 in, and compatibility with solid and stranded copper conductors; termination is crimp with the WT112M tool. UL Listed (E9809), CSA Certified, RoHS Compliant, and part of the Catamount insulated terminal series; commonly used in electrical panels, control cabinets, appliances, commercial building wiring, and industrial automation, and favored by maintenance electricians, contractors, and system integrators for new installations, equipment maintenance, retrofits, and replacement of damaged connectors.