E-Simpo IP68 Screwless Lever-Nut Waterproof Junction Box Instruction Manual

1. Product Overview

The E-Simpo IP68 Screwless Lever-Nut Waterproof Junction Box is designed for quick and secure electrical cable connections in demanding outdoor and wet environments. Featuring a screwless lever-nut terminal block, it simplifies wiring and ensures a robust, waterproof seal. This 2-way, 3-core M20 connector is suitable for a wide range of power cords and applications requiring high protection against water and dust.

Figure 1: E-Simpo IP68 Waterproof Junction Box components, showing the main body, sealing nuts, and internal lever-nut terminal.

Key Features:

• Screwless Lever-Nut Terminal: Facilitates quick and easy wiring, significantly reducing installation time.
• IP68 Waterproof Rating: Provides the highest level of protection against dust and continuous immersion in water, suitable for all weather conditions.
• Durable Construction: Made from high-quality PA66 plastic, ensuring longevity and resistance to UV radiation.
• Wide Cable Compatibility: Accommodates cable ranges of 5-9mm and 9-12mm, suitable for common power cords.
• Certifications: TUV, SAA, CE, ROHS compliant, ensuring safety and quality standards.

2. Installation and Setup

Follow these steps for proper installation of the E-Simpo Waterproof Junction Box to ensure a secure and waterproof electrical connection.

Safety Precautions:

• Always disconnect power before beginning any electrical work.
• Ensure all connections are made by a qualified electrician if you are unsure.
• Verify that the cable diameter is within the specified range (5-9mm or 9-12mm) for proper sealing.

Installation Steps:

1. Disassemble the Connector: Unscrew the two end nuts and remove the internal 3-core lever-nut terminal block from the main body.

Figure 2: Exploded view illustrating the individual components: nut, claw, waterproof ring, 3-core lever nut terminal, hollow tube, and waterproof mat.
2. Prepare Cables: Strip approximately 8-10mm of insulation from the ends of the wires for both cables to be connected. Ensure the wire section is between 0.5-2.5mm².
3. Thread Cables: Pass each cable through one of the end nuts, followed by the waterproof mat and hollow tube.


Figure 3: Diagram showing the two available inner dimensions (8.5mm for 5-9mm wire, 10.5mm for 9-12mm wire) to ensure proper cable fit and sealing.

4. Connect Wires: Open the levers on the 3-core terminal block. Insert the stripped wires (Live, Neutral, Ground) into the corresponding ports and close the levers firmly. Repeat for the second cable, ensuring correct polarity (L to L, N to N, G to G).
5. Assemble the Connector: Carefully insert the wired terminal block back into the main body of the junction box.
6. Tighten Nuts: Screw the end nuts onto the main body, ensuring they are hand-tightened to compress the waterproof mats and create a secure, watertight seal. Do not overtighten.

3. Operation

Once properly installed, the E-Simpo IP68 Waterproof Junction Box provides a reliable and sealed connection for your electrical cables. It is designed to operate continuously in outdoor and harsh environments, protecting the internal electrical connections from water, dust, and other environmental factors.

Figure 4: Visual representation of the junction box's IP68 waterproof capability, highlighting its suitability for wet conditions.

The screwless lever-nut terminals ensure a stable electrical contact, minimizing the risk of loose connections that could lead to power interruptions or safety hazards. The IP68 rating guarantees that the internal wiring remains dry and protected even under submersion, making it ideal for applications where water exposure is a concern.

4. Maintenance

The E-Simpo IP68 Waterproof Junction Box is designed for minimal maintenance. However, periodic checks can help ensure its continued performance and safety:

• Visual Inspection: Periodically inspect the junction box for any visible signs of damage, cracks, or degradation of the plastic material.
• Seal Integrity: Check that the end nuts remain tightly secured. If the box has been subjected to extreme temperature changes or physical stress, re-tighten the nuts by hand to ensure the waterproof seal is maintained.
• Cleanliness: Clean any accumulated dirt or debris from the exterior of the box using a damp cloth. Avoid using harsh chemicals that could damage the plastic.
• Cable Condition: Inspect the cables entering and exiting the box for any signs of wear, fraying, or damage to the insulation.

5. Troubleshooting

If you encounter issues with your E-Simpo Waterproof Junction Box, consider the following troubleshooting steps:

• No Power/Intermittent Power:
  • Ensure power supply to the circuit is active.
  • Verify that all wires are securely seated in the lever-nut terminals. Open the levers, re-insert wires, and close levers firmly.
  • Check for any breaks or damage in the cable insulation outside the junction box.
• Water Ingress:
  • Ensure the end nuts are fully tightened by hand to compress the waterproof mats.
  • Verify that the cable diameter matches the specified range (5-9mm or 9-12mm) for the installed waterproof mat. Incorrect cable size can compromise the seal.
  • Inspect the rubber waterproof rings and mats for any tears or improper seating.
• Loose Connection:
  • Re-open the lever-nut terminals and ensure the stripped wire ends are fully inserted before closing the levers.
  • Confirm that the wire stripping length is appropriate (8-10mm) to ensure good contact.

6. Product Specifications

Detailed technical specifications for the E-Simpo IP68 Screwless Lever-Nut Waterproof Junction Box:

Figure 5: Technical drawing showing the dimensions (L87.7*24.2mm) and certifications (IP68, CE, SAA, TUV) of the junction box.

7. Applications

The E-Simpo IP68 Waterproof Junction Box is suitable for a variety of outdoor and demanding electrical connection applications, including but not limited to:

• LED billboards and outdoor displays
• LED tunnel lights, road landscape lighting, and garden lights
• Underwater lamps and fountain lighting
• Coastal, river, sea, or underwater engineering projects
• Underground and mining engineering
• Solar-wind power systems and solar water heaters
• Various machinery and equipment requiring sealed electrical connections

Figure 6: Illustrative examples of typical applications, including underground lamps, tunnel lights, street lights, garden lights, underwater lights, and fountain lights.

8. Warranty Information

Specific warranty details for the E-Simpo IP68 Screwless Lever-Nut Waterproof Junction Box may vary by region and retailer. Please refer to your purchase documentation or contact the seller for precise warranty terms and conditions. Generally, products are covered against manufacturing defects for a specified period from the date of purchase.

9. Customer Support

For technical assistance, product inquiries, or support regarding your E-Simpo Waterproof Junction Box, please contact your retailer or the E-Simpo customer service department. Contact information can typically be found on the product packaging or the official E-Simpo website.