Cut out is a combination of a fuse and a switch and is used to protect electrical users. They are typically mounted about 20° degrees off vertical for easy opening.
Cut out function is overloading protection; in fact in case of overloading metal wire is heated until it breaks and open cut out for interrupt current transit. The current may vary from 1 to 200 A.
In cut out the fuse can be substitute with a brass blade and so it can be used like a disconnector.
Cut out is a product of the decennial experience of the Eleron staff that produces several parts of the isolator SVE493 and acquires the remaining parts from qualified suppliers, supplyng then to the final assemblage and test of the product.