12-10 Heat Shrink Butt Connector, 25 pack

Pacer TBSE10-25 heat shrink butt splices are used to safely connect one or more wires to another wire in marine, RV, automotive, and general electrical systems. They combine a crimp-style butt splice with heat shrink insulation to create a protected connection after crimping and heating.

This 12–10 AWG version uses yellow insulation for wire-size identification and is designed for larger wire splicing applications than the red 22–18 AWG or blue 16–14 AWG versions. When heated, the adhesive-lined heat shrink helps create an environmentally sealed connection for harsh conditions, helping protect against water, condensation, salt spray, corrosion, vibration, and strain. Pacer’s butt splice spec sheet lists the TBSE10 as a 12–10 AWG yellow butt splice with 0.28 in maximum wire O.D., 1.50 in terminal length, and package sizes including 25 pieces.

Key Features

• Heat shrink butt splice connector
• Designed for 12–10 AWG wire
• Yellow insulation for wire range identification
• Water-resistant adhesive heat shrink seal
• Creates an environmentally protected connection
• Protects terminations from water, condensation, salt spray, and corrosion
• Provides added vibration protection in rugged environments
• Provides strain relief
• Cost-effective wire splice solution
• Easy to install with proper crimping and heating tools
• Made with tinned copper and heat shrink insulation
• Suitable for harsh marine, vehicle, RV, and electrical environments
• Abrasion-resistant and impact-resistant benefits listed for Pacer butt splices

Technical Specifications

• Brand: Pacer
• SKU: TBSE10-25
• Product Type: Heat shrink butt splice
• Wire Range: 12–10 AWG
• Package Size: 25 pieces
• Insulation Color: Yellow
• Maximum Wire Insulation O.D.: 0.28 in
• Terminal Length: 1.50 in
• Shrink Ratio: Approximately 3:1 at 135°C
• Operating Temperature: -55°C to 125°C
• Volume Resistivity: 1015 Ohm-cm3
• Dielectric Strength: 900 V/mil
• Voltage Rating: 600 V
• Construction: Tinned copper with heat shrink insulation
• Compliance: UL, CSA, RoHS

Applications

• Marine wire splicing
• Boat electrical repairs
• RV electrical repairs
• Automotive and vehicle wiring
• 12–10 AWG wire-to-wire connections
• Electrical maintenance and repairs
• Wire extensions and circuit repairs
• Moisture-prone or vibration-prone wiring environments

Ideal For

• Marine electricians
• RV technicians
• Boat owners
• Vehicle upfitters
• Electrical installers
• Maintenance technicians
• Users needing sealed 12–10 AWG wire connections

Protection Features

• Adhesive-lined heat shrink seal
• Protection from water and condensation
• Protection from salt spray and corrosion
• Added vibration protection
• Strain relief for the wire connection
• Long-term protection in harsh environments

System Compatibility

• Compatible with 12–10 AWG wire
• Suitable for electrical systems requiring up to 600 V rated butt splices
• Suitable for applications requiring UL, CSA, or RoHS compliant splice connectors
• Suitable for marine, RV, automotive, and general electrical wiring where adhesive-lined heat shrink butt splices are appropriate

Check Before Ordering

• Confirm your wire size is 12–10 AWG.
• Confirm the 25-piece package size is correct for your project.
• Use the correct crimping tool for insulated heat shrink butt splices.
• Strip the wire to the proper length before inserting it into the splice.
• Make sure the wire insulation meets the butt splice before crimping to avoid exposed conductor.
• Perform a tug test after crimping and before heating.
• Apply heat evenly from the center outward and avoid burning the connector or wire insulation.
• Do not use this yellow 12–10 AWG splice for 22–18 AWG or 16–14 AWG wire unless the wire and connector specifications match.