ELECTRICAL CONNECTOR AND POWER SUPPLY CIRCUIT CUT-OFF DEVICE

In a power supply circuit cut-off device, a connector includes a first and second connector housings, a first and second terminals provided in the first and second connector housings, the second terminal including contact pieces with a gap therebetween, the gap being larger than a width dimension of the first terminal. The second connector housing includes pressing plate portions. The second terminal is to be accommodated between the pressing plate portions, the second terminal being displaceable between a first position and a second position, a part of the contact pieces extends beyond distal ends of the pressing plate portions when the second terminal is in the first position, the part of the contact pieces are completely retracted into a space between the pressing plate portions when the second terminal is in the second position. The contact pieces are to be pushed such that the contact pieces contact the terminal plate portions.