Reliable terminals for the
work you do every day.
Reliable terminals for the
work you do every day.
3M insulated terminals are engineered to deliver consistent, code-compliant connections in control panels, equipment wiring, and field installations. With options in vinyl, nylon, and heat shrink, these terminals are built to maintain secure electrical contact under vibration, temperature change, and repeated load cycles. Whether you are working with ring lugs, forks, spades, or disconnects, 3M terminals are made to crimp clean, hold tight, and stay in place.
Summit Electric Supply carries the full range of 3M insulated terminals to match your jobsite, environment, and connection type. From heat-shrink sealed terminals for outdoor cabinets to quick disconnects for equipment service points, we help you choose the right insulation, terminal style, and crimp profile for your application.
Navigate 3M Wire Termination:
What you can expect from 3M Wire Termination.
What you can expect from 3M Wire Termination.
- Secure Crimps – Insulation sleeves and funnel entries guide consistent tool alignment for a strong mechanical and electrical bond
- Strain Relief – Nylon and heat-shrink terminals provide added jacket support to resist pull-out and cable stress
- Moisture Sealing – Adhesive-lined heat shrink terminals create a water-resistant barrier after installation for outdoor and wet-location use
- Easy Wire Matching – Color-coded insulation helps match conductor size at a glance for quick, accurate setups
- Quick Service Access – Disconnect and bullet terminals allow tool-free removal during equipment maintenance or replacements
- Visual Inspection – Clear nylon insulation allows crimp inspection to confirm contact and meet quality standards
- Built for Extremes – Most terminals are rated up to 221°F and UL Listed for 600 volts, with select models certified to 1000 volts
Featured 3M Wire Termination Products
Featured 3M Wire Termination Products
Highland™ Vinyl Insulated Terminals
Everyday performance in panels, control wiring, and field splicing.
Highland™ Vinyl Insulated Terminals
Everyday performance in panels, control wiring, and field splicing.
Used by: Electricians, panel builders, and service teams
- Color-coded for quick gauge selection across rings, forks, spades, and butt splices
- Vinyl insulation supports crimping with standard hand tools and reduces jacket stress
- UL Listed and rated for 600 volts for building wire and 1000 volts for signs, fixtures, or luminaires up to 221°F
Nylon Insulated Terminals with Insulation Grip
Durable terminals that stay put under stress and vibration.
Nylon Insulated Terminals with Insulation Grip
Durable terminals that stay put under stress and vibration.
Used by: HVAC technicians, MRO teams, and automation installers
- Grip sleeve adds secondary strain relief on the conductor jacket
- Translucent nylon insulation allows visual crimp inspection to confirm contact quality and meet installation standards
- Ideal for control panels, motors, and high-cycle terminations
Heat Shrink Insulated Terminals
Sealed protection for wet, corrosive, or outdoor environments.
Heat Shrink Insulated Terminals
Sealed protection for wet, corrosive, or outdoor environments.
Used by: Marine contractors, equipment technicians, and industrial electricians
- Adhesive-lined heat shrink forms a moisture barrier after heating, creating water and salt resistance for marine and outdoor
- Shrink tubing creates abrasion resistance and prevents pull-out
- Rated for 600 volts and field-proven in harsh environments
Quick Disconnect Terminals
Removable terminations that simplify access and testing.
Quick Disconnect Terminals
Removable terminations that simplify access and testing.
Used by: Control technicians, OEMs, and repair electricians.
- Male and female terminals slide in and out for tool-free disconnects
- Available in vinyl and nylon with full insulation coverage
- Commonly used in relays, contactors, and modular equipment wiring