1. Introduction
This manual provides essential information for the safe and effective use of the FLEXMAN Industrial Power Connector. This robust electrical connector is designed for reliable power transmission in demanding environments.
It is suitable for a wide range of indoor and outdoor industrial, agricultural, and commercial applications, including chemical industries, airports, docks, metallurgy, power plants, and railways. The connector features an IP44 waterproof rating, offering protection against splashing water.

Image 1: FLEXMAN Industrial Power Connector set. This image displays the complete FLEXMAN Industrial Power Connector set, consisting of a male plug and a female socket. The components are designed for robust electrical connections in demanding environments.
2. Package Contents
Please verify that all items are present and undamaged upon unpacking.
- 1 x FLEXMAN Industrial Power Plug (Male)
- 1 x FLEXMAN Industrial Power Socket (Female)
3. Safety Information
WARNING: Electrical connections should only be performed by qualified personnel. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always disconnect power before installing, inspecting, or maintaining the connector.
- Ensure the connector's specifications (current, voltage, core number) match the electrical system requirements.
- Do not use the connector if it appears damaged or has exposed wiring.
- The IP44 rating protects against splashing water; it is not designed for submersion.
- Ensure proper grounding (3P+E) for safety. The ground position is 6h.
- The anti-shedding clasp design helps prevent accidental disconnection. Always ensure it is properly engaged.
- The high-quality shell provides insulation and heat resistance. Do not expose to temperatures exceeding its operational limits.
4. Specifications
| Feature | Specification |
|---|---|
| Item Type | Industrial Power Connector |
| Material | ABS, Brass |
| Current (Maximum) | 16A |
| Core Number | 4 (3P+E) |
| Ground Position | 6h |
| Protection Grade | IP44 (Splash-proof) |
| Model Number | flexmanyvxms1bein |
| Dimensions (Package) | 5.12 x 5.12 x 2.76 inches |
| Weight (Package) | 7.05 ounces |

Image 2: IP44 Waterproof Rating. This image illustrates the IP44 waterproof design of the FLEXMAN Industrial Power Connector. The robust construction helps protect against splashing water, ensuring reliable operation in various conditions.
5. Setup and Installation
Before beginning installation, ensure all power to the circuit is disconnected at the main breaker.
- Prepare Wiring: Strip the insulation from the ends of the power cables (3 phase, 1 neutral, 1 ground) to the appropriate length as indicated by the connector's internal terminals.
- Disassemble Connector: Unscrew and separate the housing of both the plug and socket components to access the internal terminals.
- Connect Wires: Carefully insert each stripped wire into its corresponding terminal (L1, L2, L3, N, E/Ground) within both the plug and socket. Ensure a secure connection by tightening the terminal screws firmly. The brass bar guides ensure strong electrical conductivity.
- Reassemble Housing: Once all wires are securely connected, carefully reassemble the housing of both the plug and socket, ensuring all seals are properly seated to maintain the IP44 rating. Tighten all screws.
- Verify Connection: Visually inspect the assembled connector for any exposed wires or loose parts.

Image 3: Internal View of Connector Components. A detailed view of the FLEXMAN Industrial Power Connector. The male plug is shown on the right, featuring its brass pins. The female socket is on the left, with an inset showing its internal contact points, designed for secure and reliable connection.

Image 4: Male Plug Pins. A magnified view of the male plug's brass pins, which are designed for strong electrical conductivity and efficient power transmission.

Image 5: Female Socket Contacts. A magnified view of the female socket's internal contact points, engineered to provide a secure and stable connection with the male plug's pins.
6. Operating Instructions
To connect the power supply:
- Align the male plug with the female socket, ensuring the ground pin (E) is correctly oriented with the ground hole.
- Push the plug firmly into the socket until it is fully seated.
- Engage the anti-shedding clasp mechanism to secure the connection and prevent accidental disconnection.
- Once connected, power can be safely applied to the circuit.
To disconnect the power supply:
- Always disconnect power at the source before attempting to unplug the connector.
- Disengage the anti-shedding clasp.
- Pull the plug straight out from the socket. Avoid twisting or pulling at an angle, which can damage the pins or contacts.
7. Maintenance
Regular maintenance ensures the longevity and safe operation of your FLEXMAN Industrial Power Connector.
- Cleaning: Periodically clean the exterior of the connector with a dry, lint-free cloth. For stubborn dirt, a slightly damp cloth can be used, ensuring the connector is completely dry before use. Do not use harsh chemicals or abrasive cleaners.
- Inspection: Regularly inspect the connector for any signs of physical damage, such as cracks in the housing, bent pins, or corrosion on the contacts. Check that the anti-shedding clasp operates smoothly and securely.
- Cable Integrity: Inspect the connected cables for fraying, cuts, or damage to the insulation. Replace damaged cables immediately.
- Storage: When not in use, store the connector in a clean, dry environment, protected from extreme temperatures and direct sunlight.
8. Troubleshooting
If you encounter issues with your FLEXMAN Industrial Power Connector, refer to the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power through connector | Power source off; Loose wiring; Damaged cable/connector | Check power supply; Verify wire connections; Inspect for damage and replace if necessary. |
| Connector feels loose after connection | Anti-shedding clasp not engaged; Worn components | Ensure clasp is fully engaged; Inspect for wear and replace if necessary. |
| Difficulty connecting/disconnecting | Misalignment; Debris in contacts; Damaged pins | Ensure correct alignment; Clean contacts; Inspect pins for damage. |
| Water ingress (despite IP44) | Improper assembly; Damaged seals; Submersion (beyond IP44 rating) | Reassemble carefully, checking seals; Replace damaged seals/connector; Avoid submersion. |
9. Warranty and Support
For warranty information or technical support regarding your FLEXMAN Industrial Power Connector, please refer to the documentation provided at the point of purchase or contact your retailer. Keep your purchase receipt as proof of purchase.
Manufacturer: FLEXMAN
Model: flexmanyvxms1bein