KF2EDG(R)-X-7.62mm-2P Right M&F is connector that terminate a single wire and connect it to a circuit or other system. Terminal blocks come in a range of shapes, sizes and ratings, but always terminate a single wire (single pole) and are never multi-pole.
KF2EDG(R)-X-7.62mm-2P Right M&F is available as rows, but each terminal connects to only a single wire. Terminal block connectors are very useful in situations that require semi-permanent connections, which may require inspections, wire replacement, repair and change (this is why terminal blocks are incredibly common in domestic wiring and industrial environments). While not all terminal blocks have PCB contact pads or legs, they always have some mechanically solid body made of plastic or other insulating material.
The most common connection method for terminal blocks is the use of a screw, wherein wires are inserted and then clamped down with the use of a single screw. Larger terminal blocks used with large cables typically have the screw pushing the wire against a metal body, whereas terminal blocks used with thinner wire use a screw that pushes down on a lever or flat head that compresses the wire against a metal insert. Other terminal blocks may use screw-less levers, which can be thought of as a fish trap; the wire is inserted and the lever comes down, which prevents the wire from being pulled back out. Another terminal type are terminal blocks with screws for holding an inserted cable on one end and a plug on the other end so that the block can be inserted into a female connector (this allows for hot-swapping).
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