Terminal blocks (also known as connection terminals or screw terminals) are modular, insulated sections that fasten two or more wires together and consist of an insulating frame and a clamping component.
Today's control wiring solutions are becoming more complex as equipment is constrained to smaller spaces, and industry calls for more responsiveness and higher amounts of automation. Within the control board, terminal blocks provide that flexibility. These modular components are snapped firmly into place on a mounting rail to quickly and securely establish connections.
Terminal blocks can be easily added or removed from a mounting rail without interfering with other wire terminations. In addition to minimizing complexity of control wiring, the plastic frames of terminal blocks also protect against shorts and subsequently provide increased safety to installers and service crews.