Wire termination and connector solutions featuring 3M MNG14-250DMIX-BOTTLE for demanding applications

3M Scotchlok Terminals, Kits, and Tools

For over 30 years, 3M has been a leading supplier of Scotchlok terminals, disconnects, connectors, and tools for high-performance applications in the assembly and maintenance of electrical systems. Thousands of satisfied customers rely on 3M products for their effective and reliable performance, often UL Listed and CSA Certified. The extensive range of types, sizes, and materials meets a broad application spectrum, including demanding temperature and weather conditions. Design features ensure easy installation with positive and easy wire insertion, elimination of strand hang-ups and wire twisting, and simple insulation entry, making the installers job easier.

• Brand: 3M
• Product Line: Scotchlok
• Certifications: UL Listed and CSA Certified (where appropriate)
• Key Features: Effective and reliable performance, variety of types/sizes/materials, easy installation features (funnel barrel, insulation grip).

Key Features and Benefits:

• One-piece, burr-free construction: Provides maximum electrical conductivity.
• Electrical bright-tin plating: Offers maximum corrosion resistance.
• Annealing: Relieves stress points and assures maximum installed strength.
• Barrel-to-pad transition design: Minimizes flexing and bending.
• Open-end design: Permits visual inspection of wire location before and after crimping.
• Multiple V grooves: Ensure maximum hold on wire for excellent holding power (on #264 AWG parts).
• Injection molded insulations: High-quality, 221F (105C) rated, tough, resistant electrical grade materials.
• Funnel barrel construction: Ensures positive, easy wire insertion, no strand hang-ups, and no wire twisting required.
• Nylon-insulated terminals with grip: Feature a brass sleeve for optimum grip on insulation, strain relief, and vibration protection. Brass sleeve is recessed for excellent flash-over protection.
• Non-slip ridge: Aids tool positioning for proper crimp and better workmanship.
• Beveled leading edge: Facilitates easy wire insulation entry.

Temperature Ratings:

• Non-insulated terminals: Withstand temperatures up to 347F (175C).
• Insulated terminals: Withstand temperatures up to 221F (105C).
• Vinyl/Nylon Insulators: Rated for continuous operating temperatures from -40F to 221F (-40C to 105C).
• High Temperature Terminals: Rated for continuous use at 900F (482C).

Construction and Materials:

• Standard Crimp Terminals: Burr-free, annealed, bright-tin plated ETP copper. Brazed seams where specified.
• Insulation Grip Sleeves: Tin-plated brass, securely attached to the barrel.
• Insulators: Molded polyvinyl chloride or nylon.
• High Temperature Terminals: Constructed of steel with nickel plating.

Applications:

• Assembly and maintenance of electrical systems.
• High vibration applications (due to insulation grip).
• Ovens, motors, light fixtures, and other high-temperature applications.
• General applications requiring reliable wire termination.

FAQ Highlights:

• Insulation Grip: Provides a "second" crimp on wire insulation for additional strain relief, excellent for high vibration applications.
• Insulated vs. Fully Insulated Disconnects: Insulated disconnects have barrel insulation only; fully insulated disconnects are insulated from the barrel to the receptacle/tab.

Product Numbering System Overview:

3M terminals follow a numbering system indicating Identity Code/Barrel Style, Wire Size Code (AWG), Tongue Code, and Product Availability.

Example Product Number Breakdown:

MNG18-4 FB/SK: M (3M Identity) + NG (Nylon w/ Grip) + 18 (Wire Range 22-18 AWG) + -4 (Stud Size 4) + FB (Fork, Block) + /S (Short) + K (Bulk Packaging).

Color Coding for Wire Range:

• Yellow: 26-24 AWG
• Red: 22-18 AWG
• Blue: 16-14 AWG
• Yellow: 12-10 AWG
• Red: 8 AWG
• Blue: 6 AWG
• Yellow: 4 AWG

Tools:

• TH-440 Scissors: Compact, 22-10 AWG, performs six electrical wiring functions (cutting, crimping insulated/non-insulated, screw cutting, wire stripping, ignition parts crimping).
• TH-450 Scissors: Versatile, heavy-duty, 26-6 AWG, high-strength carbon steel (cutting, crimping insulated/non-insulated, screw cutting, wire stripping).
• TR-482 Ratchet Tool: Crimps barrel and insulation grip simultaneously (22-10 AWG insulated terminals/connectors). Field recalibration, positive closure.
• TR-490 Ratchet Tool: Crimps barrel and insulation grip independently (22-10 AWG insulated/non-insulated terminals/connectors). Color-coded dies, field recalibration, positive closure.

Terminal Stud Size Chart:

Provides conversions between US Inch and Metric stud sizes and corresponding hole diameters.

American Wire Gauge (AWG) Chart:

Lists AWG sizes and their corresponding millimeter and circular mil (CMA) values.

Kits:

• STK-1 (Filled Scotchlok Terminal Kit): Contains popular low voltage termination products, including terminals, a crimping tool, tape dispenser, and cable ties. Supplied in a durable metal box.
• Empty Scotchlok Steel Terminal Box: Metal case with plastic insert tray for organizing terminals.
• Empty Scotchlok Plastic Terminal Box: Plastic organizing box for terminals.

Specific Product Categories Detailed (with examples of specifications):