Blue Heat Shrinkable Insulated Ring Terminal M12 (100 Pack)
Blue Heat Shrinkable Insulated Ring Terminal M12 (100 Pack)
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Blue Heat Shrinkable Insulated Ring Terminal M12 (100 Pack)
📝 Blue Heat Shrink Ring Terminal M12 (100 Pack)
These blue heat shrink ring terminals are built for sealed, vibration-resistant electrical connections in campervan, caravan, marine, automotive, and off-grid 12v–48v systems.
Designed to suit 1.5–2.5mm² cable (AWG 16–14) with an M12 ring size to fit 12mm studs/bolts, they provide a secure crimp connection rated up to 27A.
Once heated, the insulation shrinks tightly around the cable, forming a protective seal that improves strain relief and resists moisture, dust, and corrosion — making them ideal for mobile and harsh environments.
⭐ Essential Benefits
• Heat shrink insulation – creates a sealed, moisture-resistant connection.
• 27A max current rating – ideal for medium-duty DC circuits.
• 105°C temperature rating – suitable for demanding installations.
• Superior vibration resistance – perfect for touring and marine setups.
• Secure crimp connection – delivers long-term electrical reliability.
⚙️ Functionality
After crimping with a suitable ratchet crimp tool, apply heat using a heat gun to activate the insulation. The sleeve shrinks tightly around the cable insulation, forming a protective barrier that improves durability and connection stability.
These are ideal for fuse blocks, DC distribution, solar inputs, accessory circuits, and general 12v wiring upgrades.
🔌 Compatibility
• Suits 1.5–2.5mm² cable.
• AWG 16–14.
• Fits M12 studs/bolts.
• Suitable for 12v, 24v and 48v DC systems.
• Rated up to 27A max current.
🧰 Installation Difficulty
🟢 1/5 (Easy)
Requires a suitable ratchet crimp tool and heat gun for proper installation.
🔍 Features
• Blue heat shrink insulation.
• 105°C temperature rating.
• Sealed moisture-resistant design.
• Designed for DC automotive, marine, and off-grid systems.
• Supplied in bulk 100 pack.
📊 Specifications
| Specification | Value |
|---|---|
| Terminal Type | Heat shrink ring terminal |
| Stud Size | M12 |
| Cable Size | 1.5–2.5mm² |
| AWG | 16–14 |
| Maximum Current | 27A |
| Temperature Rating | 105°C |
| Insulation Type | Heat shrink |
| Pack Size | 100 Pack |
| Voltage Suitability | 12v–48v DC systems |
📘 DC Crimp Terminal Insulation Comparison
| Material | Pros | Typical Use Case |
|---|---|---|
| Vinyl | Low cost, Easy to crimp, Suitable for light-duty circuits | Interior dry areas, Basic accessory wiring, Lighting circuits, Low-current applications, Budget-focused builds |
| Nylon | Tougher insulation, Higher temperature resistance, Flexible, Better vibration resistance, Improved strain relief | Campervan 12v systems, Fuse blocks, DC-DC chargers, Solar controllers, General distribution wiring |
| Heat Shrink | Sealed insulation when heated, Excellent strain relief, High vibration resistance, Corrosion protection, Professional finish | Battery cables, Inverter feeds, Solar inputs, External wiring runs, Under-chassis wiring, Marine or damp environments |
📦 What’s Included
• 100 × Blue heat shrink ring terminals M12
🙌 Why Choose This Product?
Heat shrink terminals are the premium choice for installers who want sealed, professional-grade connections that hold up under vibration, moisture, and long-term touring conditions.
🚀 Our Promise
Order today for same-day dispatch and explore our full range of off-grid electrical accessories.
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Excellent and seems very good quality
Ross Henderson -
Good product fast service
Marie -
Great thanks. They fit like a glove.
Ben Strautins

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