ESMT04140

Terminal blocks are a critical component to many electrical assemblies, and the ESMT04140 Wire to Board terminal block is a great example of how terminal blocks are used to make important connections. The ESMT04140 is a two-position terminal block with one wire going into the block from the board side and one coming out from the wire side. It is designed for a host of applications and has a wide range of performance and safety features.

This terminal block is capable of making high voltage connections and is suitable for a variety of applications including switching power supplies, LED lighting, and industrial automation. The block features the common 0.2” pitch and M4 thread on the board side and features a wide range of voltage ratings from 150V up to 450V. The wire side portion features a 0.1” pitch and an M2.5 thread. This combination of pitches makes it easier to connect both small wires and large wires without of increasing the risk of short circuits.

The ESMT04140 is designed for safety, and has several features that enhance its safety performance. It is rated to meet UL94V-0 flammability and IEC947-5-1 (2008) PCB terminal block standards. It also features a flush- Type screw which eliminates the risk of shorting out against the board. The combination of the pitch on the board side and wire side allows for safe connections when the wire is fastened in the terminal.

The ESMT04140 also features a “quick lock” mechanism which is designed to make installation and removal of wires from the block easier. It also has a unique contact design known as “open pad contact” which improves conductivity and increases the current rating to 5 amps. Finally, it has a high temperature insulation of up to 125°C which makes it suitable for many high temperature applications.

The working principle of the ESMT04140 is fairly simple. When a wire is inserted into the terminal block, it compresses the contact plates inside the terminal block to form an electrical connection. The contact plates are spring-loaded, and when the wire is inserted, the spring pressure causes the contact plates to move into contact with the wire and form a reliable connection. This connection is maintained until the wire is removed, at which point the pressure on the contact plates is released and the connection is broken.

In summary, the ESMT04140 Wire to Board terminal block is a great choice for a variety of applications where a reliable and secure connection is needed. It features a wide range of voltage ratings, and its design features provide increased safety and performance. Its “quick lock” mechanism makes installation and removal of wires from the blocks easier, and its “open pad contact” design improves conductivity and current rating. These features make the ESMT04140 a great choice for making secure and reliable electrical connections.