wire connection solutions 3M MNG10-250DMIX-BOTTLE Scotchlok terminals with easy installation features

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. Known for their effective and reliable performance, 3M products are UL Listed and CSA Certified where appropriate. They offer a variety of types, sizes, and materials to meet a broad application range, including demanding temperature and weather conditions. Design features ensure easy installation, including positive and easy wire insertion, elimination of strand hang-ups and wire twisting, and easy insulation entry, all contributing to making the installer's job easier.

Product Attributes

• Brand: 3M
• Product Line: Scotchlok
• Certifications: UL Listed and CSA Certified (where appropriate)
• Material: Copper (ETP), Brass (sleeve)
• Insulation Materials: Vinyl, Nylon
• Temperature Ratings: Non-insulated terminals withstand up to 347F (175C); Insulated terminals withstand up to 221F (105C); High Temperature terminals withstand 900F (482C)

Technical Specifications

Key Features and Construction:

• One-piece, burr-free construction: Maximizes electrical conductivity. Electrical bright-tin plating provides maximum corrosion resistance. Annealing relieves stress points for maximum installed strength.
• Barrel-to-pad transition: Minimizes flexing and bending.
• Open-end design: Allows visual inspection of wire location before and after crimping.
• Wire Grip: Multiple V grooves (on #264 AWG parts) provide maximum hold on wire.
• Insulation: Injection molded, 221F (105C) rated, made from tough, resistant electrical grade materials. Molding ensures consistent wall thickness, funnel barrel construction for easier installation, and offers a crimp ridge and non-slip ridge.
• Crimp Ridge: Ensures positive tool location on the terminal barrel, reducing mis-crimps.
• Funnel Barrel Construction: Facilitates positive, easy wire insertion without strand hang-ups, eliminating the need for wire twisting.
• Nylon-insulated terminals with grip: Feature a brass sleeve for optimum grip on insulation, strain relief, and vibration protection. The recessed brass sleeve provides excellent flash-over protection.
• Non-slip ridge: Aids tool positioning for proper crimping.
• Beveled leading edge: Ensures easy wire insulation entry.

Barrel Styles:

• Non-Insulated Butted Seam: Economical, used where special performance or installation characteristics are not needed. Beveled mouth facilitates wire insertion.
• Non-Insulated Brazed Seam: Beveled mouth facilitates wire insertion. Can be crimped anywhere on the barrel surface. Silver brazed seam prevents opening under crimping pressure or operating stresses. Stranded wire cannot escape barrel confines.
• Vinyl Insulated Brazed and Butted Seams: Used when an insulated barrel is necessary. Features a flared, rigid molded polyvinyl chloride sleeve securely attached and funneled for easy wire entry. Wire insulation aligns with the funnel portion, preventing strand hang-up. Crimping barrel and flared sleeve provide excellent electrical contact and mechanical stress relief. Insulation includes a non-slip ridge for tool positioning. Industry standard color coding indicates wire range. Rated for -40F to 221F (-40C to 105C). UL Listed and CSA Certified for 600V building wire and 1000V signs and lighting fixtures.
• Nylon Insulated Butted Seam with Insulation Grip: Used when insulated barrel and positive insulation grip are necessary. Features a flared, seamless brass sleeve covered with a flared, molded nylon sleeve. Wire insulation aligns with the funnel portion of the brass sleeve. Crimping barrel and flared sleeve provide excellent electrical contact and mechanical stress relief. A step in the nylon insulation makes tool positioning nearly mistake-proof. Industry standard color coding indicates wire range. Rated for -40F to 221F (-40C to 105C). UL Listed and CSA Certified for 600V building wire and 1000V signs and lighting fixtures.

Heat Shrink Terminals, Connectors, and Disconnects:

• Offer superior moisture protection and corrosion resistance with adhesive-lined heat shrink material that seals against water, salt, steam, and contaminants when properly crimped and shrunk.
• Provide improved mechanical performance with adhesive-lined heat shrink tubing adhering to both the connector and wire insulation for enhanced pullout strength and strain relief.
• Feature durable heat shrink tubing that resists abrasion, scoring, cut-through, and long-term aging effects.
• Available in wire sizes 2210 AWG and are easy to install with recommended tools and heat sources. Connectors are color-coded for wire range identification, and transparent tubing allows for visual inspection.

High Temperature Terminals and Connectors:

• Constructed of steel with nickel plating for continuous use at 900F (482C), suitable for ovens, motors, and light fixtures where other connectors would corrode or melt.
• No applicable UL or CSA standard for high temperature steel parts.

Frequently Asked Questions:

• Insulation Grip: Provides a second crimp on wire insulation for additional strain relief, excellent for high vibration applications.
• Tool Compatibility: Refer to pages 143-144 for a variety of 3M tools compatible with 3M terminals.
• Insulated vs. Fully Insulated Disconnects: Insulated disconnects have barrel insulation only, while fully insulated disconnects are insulated from the barrel to the receptacle/tab.

Terminal Numbering System:

The 3M Terminal Numbering System follows a structured format: Identity Code/Barrel Style - Wire Size Code (AWG) Stud, Tab, or Bullet Size - Tongue Code - Product Availability.

Example: Catalog Number: MNG18-4 FB/SK

• M: 3M Identity
• NG: Barrel Style (Nylon w/ Grip)
• 18: Wire Range (2218 AWG, red color coding)
• -4: Stud/Bullet or Tab Size (4 Stud)
• FB: Tongue Code (Fork, Block)
• /S: Packaging Code (Short or Small)
• K: Packaging Availability (Bulk)

Insulator Color Coding:

• Yellow: 2624 AWG
• Red: 2218 AWG
• Blue: 1614 AWG
• Yellow: 1210 AWG
• Red: 8 AWG
• Blue: 6 AWG
• Yellow: 4 AWG

Tools:

• TH-440 Scissors: Compact, high-quality tool for 2210 AWG terminals. Features anvil-type wire cutter, crimp dies for insulated and non-insulated terminals, cut-off dies for screws, and wire stripping stations.
• TH-450 Scissors: Versatile heavy-duty tool for 266 AWG terminals. Features anvil-type wire cutter, multiple crimp dies for various terminal types, cut-off dies, and wire stripping stations.
• TR-482 Ratchet Tool: Crimps barrel and insulation grip simultaneously on 2210 AWG insulated terminals and connectors. Features color-coded dies, field re-calibration, terminal locator, conductor stop, and positive closure ratchet mechanism. UL Listed and CSA Certified with 3M Terminals and Connectors.
• TR-490 Ratchet Tool: Crimps barrel and insulation grip independently on 2210 AWG insulated and non-insulated terminals and connectors. Features color-coded dies for insulated and non-insulated terminals, ratchet mechanism for positive closure, and field re-calibration. UL Listed and CSA Certified with 3M Terminals and Connectors.

Terminal Stud Size Chart: Provides a reference for stud sizes in inches and millimeters, along with corresponding hole diameters.

American Wire Gauge (AWG) Chart: Lists AWG sizes and their corresponding millimeter equivalents.

Kits:

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