Electrical socket coupler CTEK 56-573, inline connector for mains sockets, rated 5 A

CTEK 56-573 is an inline electrical socket coupler that converts a mains or appliance power lead into a cigar lighter–style socket. Designed for light electrical equipment and low-current applications, the coupler provides a straightforward way to join power leads, create temporary extensions, or replace a damaged socket connector. It is intended for use where a simple, compact coupling solution with a 5 A current capacity is sufficient.

Advantages

The inline connector offers a compact and easy-to-install coupling for power leads, enabling connection of auxiliary devices without modifying existing wiring. With a specified 5 A rating, it is suitable for low-current accessories and provides a reliable mechanical connection for temporary or semi-permanent use. The design allows quick conversion to a cigar lighter–style socket, making it convenient for accessories that use that format.

Suitable for

When it may not be suitable

This coupler is not intended for high-current or heavy-duty electrical loads. Applications that require currents significantly above 5 A, continuous high-power operation, or professional automotive power delivery should use connectors and wiring rated for higher currents. Also, the product does not serve as a charger output adapter and will not connect to dedicated charger output leads.

Key specifications

How to use

Insert the incoming power lead into the coupler according to the connector orientation and secure the connection as required by the connector design. Plug the accessory with a cigar lighter–style plug into the coupler’s output socket. Verify the connection is firm and that the total current draw of connected devices does not exceed the 5 A rating. Avoid using the coupler in wet or exposed conditions unless protected by appropriate enclosures or covers.

What to consider before purchase

Recommendations

Use the coupler for low-power auxiliary devices and temporary connections; routinely check connections for wear and secure fit, and avoid continuous high-current loads to maintain safe operation.