1784180000 Connectors, Interconnects

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Terminal blocks provide a means of connecting individual conductive elements such as wires, cables, or devices together within an electrical system. The blocks feature an array of terminals arranged along a central line or ‘channel’. Typically, the terminals are colour-coded in order to distinguish between positive (marked as red) and negative (marked as black) cables.

Two broad types of terminal blocks can be identified; DIN rail, and channel. DIN rail terminal blocks are designed to fix onto a standardized rail shape in order to provide a convenient interface for the attachment of external cables and wires into an electrical system. Channel type terminal blocks, in contrast, are usually formed of two interconnecting halves that are able to clamp down on terminals, allowing the easy connection of electrical components.

Standard DIN rail terminal blocks generally consist of two parts: an interface block with an insulating base that bolts to the mounting rail and a screw clamping part that houses screws used to secure the wire. A variety of contacts can be used to make the connection such as fast-on, push-in and fork terminals. This type of terminal allows for easy and quick wiring with greater flexibility for multiple wiring configurations.

Channel type terminal blocks are manufactured in a variety of cross-sectional shapes. These range from slit-type, horseshoe, and U-shape, or a combination of these. Generally, the two halves of the channel interface are held together with a stud or a screw in order to clamp the wire (or component) in place. This type of terminal is usually seen in smaller electronics applications such as those involving communications and TV lines.

DIN rail and channel type terminal blocks are also described as single-, double- or multi-position switches, based upon their ability to handle multiple connected wires. For two-position switches, the terminals are connected with two conductor bars, which interface with a single terminal block. Connecting multiple cables in a single electrical system then requires three conductor bars, all of which can be attached to a terminal block.

In terms of general working principles, both types of terminal blocks are designed to provide an electrical connection between two or more wires without the use of butt joints, soldering, brazing, or other connection techniques. In the case of DIN rail terminal blocks, insulation material is used to surround the connection, thus securing the mechanical and electrical connection. For channel type terminals, the wire is secured by a stud or screw and is insulated using a vinyl cover.

Terminal blocks are used widely in a variety of applications, from automotive wiring, to home audio systems and industrial automation. As such, they can be found in a variety of sizes, types and configurations to suit a number of different application fields. Both DIN rail and channel type terminal blocks are proven to provide reliable connections for highly important wiring jobs.

The specific data is subject to PDF, and the above content is for reference