The YQUNIQUE Non-Insulated Butt Splices Terminal-BN Series Copper Connectors is a high-conductivity copper crimp connector designed for secure end-to-end wire splicing in electrical systems. Ideal for applications where insulation is not required or where heat-shrink tubing is applied after crimping, it provides excellent electrical conductivity, low contact resistance, and reliable mechanical strength. Its seamless tubular design ensures secure wire retention, making it suitable for wire harness assembly, industrial equipment, automotive wiring, electrical control panels, and power distribution applications.
The Non-Insulated Butt Splices Terminal (BN Series) is a fundamental electrical fastening component engineered for seamless end-to-end wire splicing. Designed for environments where pre-insulated terminals are unnecessary—or where heavy-duty heat shrink tubing will be applied post-crimping—these bare butt connectors provide the most direct and secure electrical pathway possible.
Manufactured from high-purity copper and finished with a protective tin plating, our butt splices deliver outstanding electrical conductivity while actively resisting corrosion and oxidation. Whether you are repairing automotive wire harnesses, assembling industrial control panels, or splicing low-voltage circuits, these uninsulated connectors guarantee a flawless, low-resistance joint. Fully compliant with CE and RoHS standards, they are the professional choice for safe and durable electrical installations.
| Technical Parameter | Value & Description |
| Product Name | Non-Insulated Butt Splice Connectors |
| Model Series | BN Series (BN0.5, BN1.25, BN2, BN3.5, BN5.5) |
| Terminal Body Material | Copper |
| Surface Treatment | Tin Plating |
| Supported Wire Sizes (A.W.G) | 26-22 AWG, 22-16 AWG, 16-14 AWG, 14-12 AWG, 12-10 AWG |
| Voltage Rating | Low voltage: Below 50Vac or 75Vdc |
| Certifications | CE, RoHS |
| Customization | Available |
| Standard Packaging | 1000 PCS per lot |
Premium Material Construction: The terminal body is forged entirely from high-quality copper, ensuring minimal voltage drop and maximum current flow across the splice.
Corrosion-Resistant Plating: A robust tin plating covers the copper body, preventing rust and degradation even in humid or harsh operating environments.
Intelligent Wire Stop Design: Featuring a central indentation (wire stop) in the barrel, these connectors prevent the wire from being over-inserted, ensuring both wires meet perfectly in the center for a balanced, symmetrical crimp.
Broad Wire Compatibility: The BN series accommodates a comprehensive range of wire gauges, specifically supporting 26-22 AWG, 22-16 AWG, 16-14 AWG, 14-12 AWG, and 12-10 AWG.
High Safety Standards: Engineered for low voltage applications (below 50Vac or 75Vdc). These terminals contain no high-concerned chemicals and are fully RoHS certified.
Because of their uninsulated, slim profile, the BN Series Non-Insulated Butt Splices Terminals are incredibly versatile and widely used across numerous industries:
Automotive & Marine Wiring: Ideal for repairing wire harnesses or extending cables where custom, waterproof heat-shrink tubing will be applied over the splice.
Industrial Automation: Used extensively in PLC cabinets and motor control centers for permanent, vibration-resistant wire extensions.
Telecommunications: Splicing low-voltage communication cables safely and efficiently.
Consumer Electronics: Internal wiring repairs and component assembly where space is strictly limited.
Creating a secure splice with these butt connectors is a fast, 3-step process:
Preparation & Insertion: Select a connector to suit your specific wire size, strip the wire insulation, and insert the bare copper strands into the terminal barrel until they hit the central wire stop.
Professional Crimping: Using a professional crimping tool, firmly crimp one side of the terminal to secure the first wire in place. Repeat the process for the opposite side.
Finalization: The terminal connection is now finished, resulting in a highly conductive, mechanically strong joint.
Bulk Wholesale Availability: We cater directly to large-scale manufacturers and electrical distributors, offering premium quality connectors in convenient 1000 PCS lots.
Uncompromising Quality: Our terminals are manufactured in Mainland China using strict quality control measures to ensure perfect wall thickness and exact dimensional tolerances.
OEM Customization Support: We provide tailored solutions and support customized orders to meet your specific assembly line requirements.
Eco-Friendly Manufacturing: Compliant with global environmental directives, our products are completely free of highly concerned chemicals.
1. What is a BN Non-Insulated Butt Splice Terminal used for?
The BN Non-Insulated Butt Splice Terminal is designed to permanently join two electrical wires through crimping, providing a secure and reliable electrical connection.
2. What materials are the terminals made of?
The terminals are manufactured from high-quality copper and finished with tin plating to provide excellent electrical conductivity and corrosion resistance.
3. Why choose a non-insulated butt splice terminal?
Non-insulated butt splice terminals are ideal for applications requiring compact connections or custom insulation using heat-shrink tubing or insulating sleeves.
4. What types of wires are compatible with this terminal?
The terminal is suitable for stranded or solid copper conductors within the specified wire size range.
5. Does the terminal require soldering?
No. The terminal is designed for crimp installation using a compatible crimping tool, eliminating the need for soldering.
6. What industries commonly use these butt splice terminals?
They are widely used in automotive wiring, industrial control systems, electrical panels, machinery, power distribution, and wire harness manufacturing.
7. Are different sizes available?
Yes. The BN series is available in multiple sizes to accommodate different conductor cross-sections and application requirements.
8. Can the terminals be customized?
Yes. We provide OEM and ODM services, including customized dimensions, packaging, labeling, and branding.
9. Can I request samples before placing a bulk order?
Yes. Samples are available for quality evaluation and application testing before mass production.
10. What information is required for a quotation?
Please provide the wire size, terminal size, quantity, application, and any customization requirements so we can provide an accurate quotation.
YQUNIQUE provides 1 year warranty period, during which our company will undertake all after-sale services and spare parts free of chargee
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