Protective enclosure for electronic circuits

A method of retrofitting an installed Alternating Current-to-Alternating Current electric power conversion device, the method comprising:

• providing a base frame;
• providing an electronic circuit comprising a compatible circuit suitable to replace an Alternating Current-to-Alternating Current conversion circuit within the installed Alternating Current-to-Alternating Current conversion device;
• providing a cage frame depending from the base frame, the cage frame:
• configured to provide physical protection on at least four sides for the electronic circuit;
• and
• defining a plurality of openings configured to provide air circulation across the electronic circuit;
• and
• providing at least one fan disposed within the cage frame and configured to at least partially drive the air circulation.

A method of providing protection and cooling of an electronic circuit, the method comprising:

• providing a base frame;
• providing an electronic circuit;
• providing a cage frame depending from the base frame, the cage frame:
• configured to provide physical protection on at least four sides for the electronic circuit;
• and
• defining a plurality of openings configured to provide air circulation across the electronic circuit;
• and
• providing at least one fan disposed within the cage frame and configured to at least partially drive the air circulation.