MUCKLILY 561K12YGF4T13RLE
MUCKLILY K1 Wire Splice Terminals User Manual
Model: 561K12YGF4T13RLE
1. Product Overview
The MUCKLILY K1 Wire Splice Terminals are designed for quick, reliable, and waterproof connections of telephone cables, network cables, and other conductors. These connectors provide an air-tight, gel-filled environment for secure and lasting splices, offering an easier alternative to traditional wire twisting and soldering methods.
Key Features:
- Suitable for phone wire installation, network cable, and other conductors.
- Made from durable PC and copper materials for high connection rates.
- Strong insulation with a safe self-peeling insulation layer.
- Features waterproof and corrosion-resistant properties.
- Gel-filled design ensures an air-tight environment for reliable connections.

Figure 1: A collection of MUCKLILY K1 Wire Splice Terminals. These orange and clear connectors are designed for quick and secure wire splicing.
2. Package Contents
Upon opening your package, you should find the following items:
- 200 x MUCKLILY K1 Wire Splice Terminals

Figure 2: Visual representation of the package contents, highlighting the quantity (200 pieces), color (orange), and primary materials (PC, copper) of the K1 connectors.
3. Setup and Installation
The K1 Wire Splice Terminals are designed for straightforward installation. Follow these steps for a secure and reliable connection:
- Prepare Wires: Ensure the wires to be connected are clean and free from damage. The K1 connectors are suitable for wire diameters (without insulation layer) between 0.4-0.7 mm, and with an insulation layer diameter of up to 2.0 mm.
- Insert Wires: Insert the ends of the two wires you wish to splice into the two ports of the K1 connector. Ensure each wire is fully seated within its respective port. The connector's self-peeling insulation layer will automatically strip the wire as it's inserted.
- Crimp Connector: Using a standard crimping tool (not included), apply firm pressure to the orange cap of the connector until it clicks or is fully depressed. This action secures the wires and activates the gel-filled seal, creating an air-tight and waterproof connection.
- Verify Connection: Gently tug on the wires to ensure they are securely held within the connector. A proper connection will be firm and resistant to pulling.

Figure 3: A technician demonstrating the application of K1 connectors for data and phone wire splicing within a network environment.

Figure 4: Detailed view of the K1 connector's butt splice port, illustrating the applicable wire diameter ranges for optimal connection.
4. Operating Principles
The MUCKLILY K1 Wire Splice Terminals operate on a simple, yet effective, insulation displacement connection (IDC) principle. When the orange cap is pressed, an internal metal blade pierces the wire's insulation, making electrical contact with the conductor. Simultaneously, the gel inside the connector encapsulates the connection, providing a waterproof and corrosion-resistant seal. This design ensures a reliable and long-lasting splice without the need for stripping wires or soldering.
These connectors are ideal for various applications, including:
- Telephone line extensions and repairs.
- Network cable splicing in data centers or home networks.
- Low-voltage lighting circuits.
- General electrical connections requiring a robust, sealed splice.

Figure 5: Examples of environments where K1 Wire Splice Terminals are commonly used, including network chassis, computer rooms, general industrial settings, and workshops.
5. Maintenance
MUCKLILY K1 Wire Splice Terminals are designed for maintenance-free operation once properly installed. Due to their sealed, gel-filled design, they provide long-term protection against moisture and corrosion. No periodic inspection or cleaning is typically required for the connectors themselves.
However, it is good practice to:
- Ensure the surrounding wiring and environment are free from excessive physical stress or extreme temperatures beyond the product's operational limits.
- Periodically check the integrity of the cables leading to and from the connectors, especially in high-traffic or exposed areas.
6. Troubleshooting
If you encounter issues with a connection made using the K1 Wire Splice Terminals, consider the following troubleshooting steps:
- No Connection/Intermittent Connection:
- Check Wire Compatibility: Verify that the wire diameter (0.4-0.7 mm without insulation, up to 2.0 mm with insulation) falls within the specified range for the K1 connector. Wires that are too thin or too thick may not make proper contact.
- Ensure Full Insertion: Make sure both wires were fully inserted into the connector before crimping. The self-peeling mechanism requires proper seating.
- Verify Crimping: Confirm that the orange cap was fully depressed and locked into place. Insufficient crimping may lead to poor electrical contact.
- Inspect Wires: Check the ends of the wires for any damage, corrosion, or excessive insulation that might prevent proper contact.
- Physical Damage to Connector:
- If the connector itself appears cracked or damaged, it should be replaced. Do not attempt to reuse damaged connectors.
For persistent issues, it is recommended to replace the connector and re-attempt the splice with new, properly prepared wires.
7. Specifications
| Attribute | Value |
|---|---|
| Model Number | 561K12YGF4T13RLE |
| Brand | MUCKLILY |
| Material | PC (Polycarbonate), Copper |
| Color | Orange |
| Product Dimensions (L x W x H) | 0.47 x 0.47 x 0.47 inches (1.2 x 1.2 x 1.2 cm) |
| Applicable Wire Diameter (without insulation) | 0.4 - 0.7 mm |
| Max Wire Diameter (with insulation) | 2.0 mm |
| Quantity | 200 pieces per set |
| Features | Waterproof, Sturdy, Quick Connection, Gel-filled |

Figure 6: Dimensional overview of a single K1 Wire Splice Terminal.
8. Warranty and Support
Specific warranty information for the MUCKLILY K1 Wire Splice Terminals is not provided in this manual. For details regarding warranty coverage, returns, or technical support, please refer to the product listing on the retailer's website or contact the seller directly.
You may also visit the official MUCKLILY store for more information: MUCKLILY Store on Amazon
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