Utilising either the electronic or electromechanical fuse monitoring allows quick fault diagnostics. If a fuse blows, a signal is immediately sent to advise of the need for quick replacement without effecting plant availability. The fitting of a micro switch indicates the switching position of the isolator lid to the control desk/room. The cable outlet may also be swapped from the top to the bottom using the same device thereby cutting warehouse costs by up to 50%.
To prevent unintentional opening of the isolator lid, all designs have a screwdriver-operated lock as standard; the lock position may also be sealed with sealing wire if preferred. A sliding window incorporated into the isolator lid contains a unique spring mechanism, which automatically closes the holes after voltage testing.