Introduction
This manual provides essential information for the safe and effective use of your Marinco 305CRCXN Female Connector. This 16A 230V marine-grade connector is designed for shore power applications, ensuring reliable electrical connection in demanding marine environments. Please read this manual thoroughly before installation and operation.
Safety Information
WARNING: Electrical shock hazard. Always disconnect power before installing, servicing, or removing this connector. Improper installation or use can result in serious injury or death. Consult a qualified electrician if you are unsure about any part of the installation process.
- Ensure all wiring complies with local electrical codes and marine standards.
- Do not use if the connector or cable shows signs of damage.
- Keep connections dry and free from corrosion.
- This connector is rated for 16 Amperes at 230 Volts. Do not exceed these ratings.
Product Overview
The Marinco 305CRCXN is a compact, export-grade female connector specifically designed for 230V shore power applications. It features corrosion-resistant contacts and terminals for enhanced durability in marine environments.

Image: Marinco 305CRCXN Female Connector. This image displays the yellow and white female connector, showing the 16A 220V 50Hz rating on its face.
Setup and Installation
- Prepare the Cable: Strip the outer jacket of your shore power cable to the appropriate length, exposing the insulated conductors.
- Strip Conductors: Carefully strip approximately 1/2 inch (12mm) of insulation from each conductor (Line, Neutral, Ground).
- Connect Wires: Loosen the terminal screws on the connector. Insert each stripped conductor into its corresponding terminal. Ensure no stray wire strands are present.
- Secure Connections: Tighten the terminal screws firmly to ensure a secure electrical connection. Tug gently on each wire to confirm it is properly seated and cannot be pulled out.
- Assemble Connector: Reassemble the connector housing, ensuring all components are properly aligned and tightened to prevent water ingress.
- Test: Before connecting to shore power, verify all connections are correct and secure.
Operating Instructions
- Connect to Boat Inlet: Align the female connector with the boat's shore power inlet and push firmly until it clicks into place.
- Connect to Shore Pedestal: Connect the male end of your shore power cord to the shore power pedestal.
- Engage Power: Turn on the circuit breaker at the shore power pedestal.
- Disconnecting: Always turn off the circuit breaker at the shore power pedestal first. Then, disconnect the male end from the pedestal, followed by the female connector from the boat inlet.
Maintenance
- Regular Inspection: Periodically inspect the connector for signs of wear, corrosion, or damage. Look for discoloration, cracks, or loose connections.
- Cleaning: Clean the connector contacts and housing with a non-abrasive cleaner and a soft cloth. Ensure it is completely dry before use.
- Corrosion Protection: Apply a marine-grade dielectric grease to the contacts to prevent corrosion, especially in saltwater environments.
- Storage: When not in use, store the connector in a dry, protected area, away from direct sunlight and extreme temperatures.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to boat | Shore power breaker tripped; Loose connection; Damaged cable/connector | Check/reset shore power breaker; Inspect and tighten all connections; Replace damaged components. |
| Overheating connector | Overload; Loose connections; Corrosion | Reduce load; Tighten connections; Clean and apply dielectric grease to contacts. |
| Difficulty connecting/disconnecting | Corrosion; Misalignment; Debris | Clean contacts; Ensure proper alignment; Remove any debris. |
| Corrosion on contacts | Exposure to moisture/saltwater | Clean contacts thoroughly; Apply marine-grade dielectric grease. |
| Water ingress | Improper assembly; Damaged seal | Disassemble and reassemble correctly; Replace if seal is damaged. |
Specifications
- Model: Marinco 305CRCXN
- Type: Female Connector
- Current Rating: 16 Amperes
- Voltage Rating: 230 Volts
- Construction: Marine-grade, corrosion-resistant contacts and terminals
- Dimensions (Package): 7.36 x 5.43 x 2.13 inches
- Weight (Item): 4 ounces
- Manufacturer: Marinco Electrical Group
Warranty and Support
For warranty information or technical support, please refer to the official Marinco website or contact their customer service directly. Keep your purchase receipt for warranty claims.
Related Resources
Official Product Video: ProMariner Brand Overview
Description: This video provides an overview of the ProMariner brand, highlighting their commitment to marine charging solutions and the reliability of their products. It showcases various marine activities and the role of robust electrical equipment.




