The interface terminal block (round / spade terminal type) is a component for wiring connections that combines a connector and a small circuit board. Image result for interface terminal block description In control systems, terminal blocks are used to connect panel-mounted equipment to power and field wiring. A typical automation system inside of an equipment rack may contain any number of components (such as controllers, PLCs, I/O modules, etc.) mounted on DIN rails and connected together via terminal blocks.
The interface terminal block (round / spade terminal type) is a component for wiring connections that combines a connector and a small circuit board terminal block. It is mainly used to connect a PLC, etc., and to reduce the size of the control panel. Terminal blocks are connectors 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.
Terminal blocks, connectors, and busbars are made of electrolytic copper (H65) as the basic material. Copper has excellent electrical conductivity as compared to silver. There are several types of terminals: dumb terminals, smart terminals, and graphics terminals.
