1. Introduction
This manual provides detailed instructions for the safe and effective use of your Industrial IP68 Waterproof M20 4 Core Docking Joint Electric Connector. Designed for robust performance in demanding environments, this connector ensures reliable power transmission with superior waterproofing. Please read this manual thoroughly before installation and operation.
2. Safety Information
WARNING: Electrical shock hazard. Always disconnect power before installing or servicing this connector.
- Ensure all wiring is performed by a qualified electrician in accordance with local and national electrical codes.
- Do not exceed the specified voltage and current ratings of the connector.
- Inspect the connector for any damage before installation. Do not use if damaged.
- Ensure the waterproof sealing ring is correctly seated and the connector is fully tightened to achieve IP68 rating.
- Keep children away from electrical connections.
3. Product Overview
The M20 4 Core Docking Joint Electric Connector is an industrial-grade power adapter plug socket designed for secure and waterproof electrical connections. It features a robust construction suitable for outdoor lighting fixtures, sensors, and other applications requiring high environmental protection.
4. Specifications
| Attribute | Value |
|---|---|
| Brand Name | Gmilli |
| Model Number | Exceedconn EC |
| Type | M20 Power Connector |
| Pin Number | 4pin |
| Rated Current | 10A / 15A (depending on core configuration) |
| Rated Voltage | 220V (General), 250V (2,3,4 core), 125V (5,6,8 core) |
| Rated Impulse Voltage | 2500V (2,3,4 core), 1500V (5,6,8 core) |
| Waterproof Level | IP68 |
| Certification | CE, FCC, RoHS |
| Origin | Mainland China |
| Unplugging Times | >=500 |
| Contact Resistance | <=10mΩ |
| Pollution Level | 3 |
| Operating Temperature | -40℃ ~ +85℃ |
| Material Grade | II |
| Shell Material | PA66 |
| Conductor Material/Plating | Copper alloy/gold plated |
| Sealing Material | Silicone Rubber |
| High-concerned chemical | None |
4.1. Dimensions
- Overall Length: 51.0 mm
- Max Diameter: 22.0 mm
- Face Diameter: 19.7 mm
- Internal Diameter: 18.0 mm
4.2. Cable Compatibility (ECBF Type)
| Sealing Plug Aperture (mm) | Applicable Wire Diameter (OD) (mm) |
|---|---|
| 6 | 4.5 ~ 6 |
| 7 | 5.6 ~ 7 |
| 8 | 6.6 ~ 8 |
| 9 | 7.6 ~ 9 |
Note: The default waterproof ring size is 6mm, suitable for 4.5-6mm cables. Other sizes are available.
5. Setup and Installation
Follow these steps to correctly assemble and install the M20 waterproof connector:
- Prepare the Cable: Strip the outer jacket of your cable to the appropriate length, exposing the individual insulated wires. Strip the insulation from the ends of the individual wires to expose the conductor.
- Disassemble the Connector: Unscrew the connector components. You will typically have a main body, a sealing nut, a sealing ring, and the contact insert.
- Thread Cable Through Components: Thread the cable through the sealing nut and sealing ring first, ensuring they are oriented correctly.
- Connect Wires: Insert the stripped wire ends into the corresponding terminals of the contact insert. Ensure a secure connection, typically by soldering or crimping, depending on the connector type. Pay attention to pin assignments (e.g., 1, 2, 3, 4 for 4-pin).
- Assemble the Connector: Push the contact insert into the main body of the connector.
- Secure Sealing: Slide the sealing ring and sealing nut forward and tighten the sealing nut onto the main body. Ensure it is hand-tightened securely to compress the sealing ring and achieve the IP68 waterproof rating.
6. Operating Instructions
Once properly installed, the M20 docking joint connector is designed for simple plug-and-play operation.
- Connecting: Align the male and female connector halves, ensuring the pins are correctly oriented. Push them together firmly.
- Securing: Rotate the threaded coupling nut until it is fully tightened. This secures the connection and ensures the waterproof seal.
- Disconnecting: To disconnect, first ensure power is OFF. Then, unscrew the coupling nut completely and pull the connector halves apart. The connector is marked with "DISCONNECT POWER BEFORE OPENING" as a safety reminder.
7. Maintenance
Regular maintenance helps ensure the longevity and performance of your connector.
- Inspection: Periodically inspect the connector for any signs of wear, corrosion, or damage, especially if used in harsh environments.
- Cleaning: If necessary, clean the exterior of the connector with a damp cloth. Do not use abrasive cleaners or solvents. Ensure the connector is dry before re-energizing.
- Sealing Ring: Check the silicone rubber sealing ring for cracks or degradation. Replace if necessary to maintain the IP68 rating.
- Tightness: Ensure all threaded connections remain tight, especially the coupling nut, to prevent water ingress.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power through connection | Loose wire connection Incorrect wiring Damaged cable/connector | Check wire terminals for secure contact. Verify wiring against pin assignments. Inspect cable and connector for damage; replace if necessary. |
| Water ingress / Not waterproof | Sealing nut not fully tightened Damaged or improperly seated sealing ring Incorrect cable diameter for sealing ring | Ensure coupling nut is fully tightened. Inspect sealing ring for damage and proper seating; replace if faulty. Verify cable diameter matches the sealing ring aperture. |
| Connector difficult to mate/unmate | Misalignment of pins Debris in connector Damaged pins | Ensure proper alignment before mating. Clean any debris from the connector faces. Inspect pins for bending or damage; replace connector if pins are damaged. |
9. User Tips
- Cable Preparation: For optimal performance and waterproofing, ensure that the cable's outer jacket and individual wire insulation are stripped cleanly and to the correct lengths before connecting.
- Sealing Ring Selection: Always use a sealing ring that matches your cable's outer diameter to ensure a tight, waterproof seal. The default 6mm ring is for 4.5-6mm cables.
- Tightening: Hand-tighten the coupling nut firmly. Over-tightening is generally not necessary and could potentially damage the threads or sealing ring.
- Application Matching: Double-check that the connector's current and voltage ratings are appropriate for your specific electrical application to prevent overload and ensure safety.
10. Warranty and Support
For warranty information or technical support, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
