Electrical connector with adjustable wire inlet hole

An electrical connector, comprising:

• a main body, comprising:
• a first connection portion;
• and
• a wire inlet portion, wherein an accommodating space is defined between the wire inlet portion and the first connection portion;
• a first cover pivotally connected to the first connection portion to be rotatable relative to the main body between a first position and a second position, wherein when the first cover is at the first position, the accommodating space is opened for installation of a signal line, and wherein when the first cover is at the second position, the first cover at least partially closes the accommodating space for protection of the signal line;
• and
• a second cover connected to the first cover and separably covered on the wire inlet portion, wherein the second cover and the wire inlet portion enclose a wire inlet hole therebetween, and the second cover is movable relative to the wire inlet portion to adjust a size of the wire inlet hole, wherein the first cover has a first side wall and a second side wall at a first end, and at least one of the first side wall and the second side wall has a groove;
• wherein the groove has a limiting structure, so that the second connection portion is adjustably disposed in the groove.