Terminal blocks are connectors that terminate individual wires and connect them to a circuit or other system. Terminal blocks come in many shapes, sizes, and ratings, but always terminate a single wire, never multi-pole.
While electronic circuits can process signals and produce outputs, they almost always need to be connected to external components, power supplies, inputs or outputs. These connections are made through the use of connectors, which come in many different types, shapes, sizes, and ratings.
Terminals are arranged in rows, but only one wire is connected to each terminal. Terminal block connectors are useful in situations where a semi-permanent connection is required, which may require inspection, wire replacement, repair and replacement.
