Multipurpose lockable polycarbonate enclosures for a wide range of larger size devices, components and instruments, such as keypads, annunciators and automated external defibrillators (AEDs) which require protection from vandalism, accidental damage, as well as the elements, such as dirt and grime. For the Polycarbonate Enclosure series, there are spacers, integrated hinge and covers that are formed from tough polycarbonate material.