The
electrical connector has a pair of first and second terminal fittings each connected to each of a pair of first and second electrical cables and a connector housing holding the terminal fittings. The
electrical connector comprises a cable distinction device for electrically connecting the first electrical cable to the first electrical cable and the second electrical cable to the second electrical cable. The cable distinction device has a cutout with a shoulder, the cutout allowing
insertion of the electrical cables into the connector housing, the shoulder positioned at a middle of an inner edge of the cutout, and the shoulder allows
insertion of the first electrical cable but prevents
insertion of the second electrical cable into the connector housing. The first and second electrical cables have an outer
diameter equal to each other, and the first electrical cable has a protrusion projecting from an outer surface of a sheath to abut against the shoulder of the cutout when inserted in to the cutout. Alternatively, the first electrical cable may have an outer
diameter larger than that of the second electrical, and the first electrical cable abuts against the shoulder of the cutout when inserted in to the cutout.