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Terminal Blocks – Wired to Board is a specialized, cost effective connector technology used in several different applications. The basic principles of the technology are simplicity, reliability, and cost effectiveness. This type of connection allows the user to quickly and easily connect wires in a secure and reversible manner, versus traditional connecting methods such as soldering or using plug and receptacle connectors.

These blocks provide a convenient, field-installable wiring system that is flexible and economical for a variety of control, instrumentation, and electronic applications. They are ideal for space-critical or harsh environments, because they provide a more reliable and tamper-proof connection than soldering, and they take up far less space than large plug and receptacle connectors.

Terminal blocks consist of a base housing, a rail or connector plate, terminal contacts, and a wire clamp. The base housing can be molded in plastic or made from metal. The rail or connector plate typically is made from a non-magnetic material such as brass, aluminum, or steel. Inside the block base housing are metal terminal contacts that are designed to make an electrical connection with a crimped terminal attached to the end of a wire. These contacts are usually angled to fit into the rail, or plate, making a reliable electrical connection when the wire is clamped into place.

A variety of wire clamps can be used to secure a wire into the block housing. Screw-type clamps offer the best resistance to vibration and shock, and are most often used for more signal-sensitive applications. Spring-loaded clamps are also available for quick and easy connections, they provide less protection from vibration and shock, however they offer a lower installed cost. Pluggable connections provide fast and easy connection and removal of a wire, and they are most often used in applications where wires can be changed or removed without disturbing the system wiring.

Terminal blocks are available in a wide variety of mounting styles, as well as different terminal configurations and contact types. They can be used in electrical applications such as power supplies, amplifier circuits, CO2 and O2 systems, and automotive applications. These blocks can be mounted on a PCB, panel, and DIN-rail, and are used in a variety of industrial, commercial and residential applications such as automotive, communications, and control systems.

Terminal blocks offer many advantages over traditional methods of connecting wires. They are low-cost, space-saving, and easy to install. They also provide secure, reliable, and tamper-proof connections, and are well suited for harsh environments. Terminal blocks are an ideal connector choice for a wide range of applications including power, signal, or control connections, where space and cost savings are important requirements.