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The THOMAS BETTS TNF14-250MD-XV is a fully insulated male disconnect terminal designed for reliable solderless wire termination in electrical wiring assemblies. It accepts 16-14 AWG conductors and features a 1/4 inch tab width for standard quick-disconnect mating. The blue nylon insulation provides full coverage of the terminal barrel, helping to prevent accidental contact and reducing the risk of short circuits. This terminal is sold in a package of 75 pieces, making it suitable for service stock, panel builds, and high-volume wiring tasks. Electricians, control panel builders, and HVAC technicians commonly use these connectors when terminating low-voltage control wiring, appliance leads, and equipment harnesses.
This disconnect terminal is used in residential and light commercial electrical applications where push-on quick-disconnect connections are required. Typical installations include HVAC control wiring, appliance wiring harnesses, automotive-style electrical panels, and industrial control enclosures. The 1/4 inch tab width matches standard male disconnect blades found on relays, contactors, switches, and terminal blocks. The fully insulated blue nylon body visually indicates 16-14 AWG wire range compatibility, following standard color-coding conventions used across the trade.
Designed as an OEM-style solderless disconnect terminal compatible with standard 1/4 inch male quick-disconnect blade connections across residential and commercial electrical, HVAC, and appliance wiring applications.
Installation should be performed by a qualified electrician or HVAC technician following applicable NEC guidelines. De-energize the circuit completely before terminating or removing any disconnect terminal. Use a calibrated ratchet crimping tool rated for insulated terminals in the 16-14 AWG range to ensure a secure, gas-tight crimp. Do not attempt to crimp these terminals with pliers or non-rated tools, as improper crimping can result in high-resistance connections or terminal pullout.
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