Abstract: The terminal block assembly includes first and second terminal blocks each having a plurality of terminal connectors mounted therein. Each terminal connector in the first block includes a terminal blade which extends from the block and each terminal connector in the second block includes a recessed female jack portion adapted to frictionally receive and hold one of the terminal blades extending from the first block for establishing individual releasable electrical connections between each one of the extending blades and one of the female jack portions. Each female jack portion is loosely mounted in the second block so that it is self-aligning when it engages one of the blades extending from the first block.