Terminal blocks mount on DIN rails, channels, or panels to distribute power or ground to one or more components within an enclosure. Also known as connection terminals, they help keep wiring circuits tidy inside confined spaces such as electrical panels to make them easily identifiable and accessible for troubleshooting. Their input and output terminals are connected by a busbar within their insulated frame and have mechanical clamps that compress the conductors to hold and splice them. Terminal blocks allow for quick termination and disconnection of wires with the use of a screwdriver.