Non-grounded electric connector

A non-grounded electric connector, comprising:

• a main body, comprising upper and lower guide bodies extending predetermined lengths, with an insertion slot formed in a first surface of the main body;
• a plurality of main terminal contacts fastened to the main body and being parallel with the main body, each main terminal contact protruding at a second end thereof to an outside from a second surface opposite to the first surface of the main body, with a contact part provided on a first end of the main terminal contact which protrudes into the insertion slot towards the first surface of the main body and is spaced apart from the upper and lower guide bodies by predetermined distances;
• dummy contacts fastened to the main body and placed at outside opposite ends of a row of the main terminal contacts, each dummy contact protruding at a second end thereof to the outside from the second surface of the main body without protruding at a first end thereof towards the first surface of the main body;
• and
• a conductive cover surrounding an outer surface of the main body, wherein
• an edge of the conductive cover, which faces the contact part of the main terminal contact and is placed at a position adjacent to the first surface of the main body, is bent into the insertion slot.