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The 3M 7000133390 is a partially insulated circular ring terminal designed for crimp-style wire terminations on 16 to 14 AWG conductors. The copper contact provides reliable conductivity, while the blue heat-shrink insulation sleeve offers partial strain relief and visual identification by wire gauge range. At 1.1 inches long and 0.47 inches wide with a 5/16-inch stud hole, this terminal suits standard panel and equipment grounding or power distribution connections. Electricians and panel technicians use these where a secure, inspectable crimp connection is required on medium-gauge control or power wiring.
This ring terminal is suited for residential and light commercial electrical applications including control panels, junction boxes, and equipment terminations. The 5/16-inch stud size fits common bus bar studs, grounding lugs, and terminal blocks found in HVAC equipment, electrical panels, and motor control centers. The blue color coding matches the 16 to 14 AWG range per standard wire terminal color conventions, aiding fast identification during installation. Each package contains 25 terminals.
Designed for use with 16 to 14 AWG copper conductors and 5/16-inch mounting studs in standard crimp terminal applications.
Installation should be performed by a qualified electrician in accordance with NEC requirements. De-energize the circuit completely before terminating or removing ring terminals. Use a calibrated ratchet crimp tool rated for 16 to 14 AWG insulated terminals to achieve a proper crimp — never use pliers or uncalibrated tools as an inadequate crimp can result in high-resistance connections or pull-out failure. Inspect the crimp and insulation sleeve for deformation or cracking after termination.
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