Electrical connector

An electrical connector has a sealing face 30 provided along the entire circumference of a side edge and upper face of a foot member 25 and along outer side faces and an outer base face of a terminal housing chamber 23. An operating member 26B and short-circuiting terminal 24 are sealed by a boot 31, an opening edge 31A of the boot 31 fitting tightly with a continuous sealing circumference face 30, thereby preventing the entry of water or dirt. The arrangement ensures that the locking arm 26 can be operated without risk of breaking the seal.