This MC4-compatible in-line fuse holder with a 20A built-in fuse provides simple and reliable over-current protection for solar panel circuits. It is designed to be installed directly in-line with solar panel cables, helping to protect solar panels, wiring, and other system components from damage caused by excessive current.

The fuse holder can be used in a wide range of DC solar applications where additional circuit protection is required between solar panels and other components such as charge controllers. By interrupting the circuit if the current exceeds the fuse rating, it helps safeguard your solar power system and maintain safe operation.

Subject to the maximum current and voltage rating of the adaptor (1000V 20A DC), it provides added protection to your solar array.

The adaptor features a male MC4-compatible connector and a female MC4-compatible socket, which means it can easily be plugged into the end of a solar panel cable with a compatible connector.

The adaptor can also be easily opened if the fuse needs to be replaced, allowing quick maintenance without replacing the entire unit. It is also fully waterproof, and suitable for outdoor applications.