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Terminal blocks are an important part of an electrical system, used to connect wires to various components. Panel mount terminal blocks are designed for use in a panel or enclosure, often mounted onto a DIN Rail or direct to a panel. The two basic types of panel mount terminal blocks are feed through and split-type, and each of them have specific application fields and working principles.

Feed-through Terminal Blocks

Feed-through terminal blocks are mainly used when two circuit boards must be connected together and input and output wire to and from the circuit board. These terminal blocks will have two different sides that can accept a wire, with one side connected to the input circuit and the other side connected to the output circuit. The terminal blocks provide a quick and easy way to make the interconnections and provide a secure connection that will not become loose over time.

The working principle of a feed-through terminal block is fairly simple; one side of the terminal block accepts incoming wire and the other side of the terminal block will accept outgoing wire. When a wire is inserted in the required terminal, it creates a connection between the two circuits on either side of the block. This connection allows for the electrical signals to pass through from one side of the terminal block to the other.

Split-Type Terminal Blocks

Split-type terminal blocks are a mix of a feed-through type and a wire-to-board terminal. They are often used when connecting multiple wires to a single device, such as when connecting several wires from the same power supply to a power conversion circuit. They can also be used in more complex circuits, such as when connecting a device to multiple inputs and outputs.

The design of a split-type terminal blocks is such that the terminals are separated into two parts. The terminals at one end accept the incoming wire, while the terminals at the other end accept the outgoing wire. This allows for several wires to be connected to the same device at once, as the wires are never actually connected to each other, but rather, routed through the same terminal block.

The working principle of the split-type terminal blocks is the same as the feed-through type terminal blocks; the one side of the terminal block will accept the incoming wire, while the other side will accept the outgoing wire. The difference is that, due to the design, more than one wire can be connected to each side. This allows for multiple connections to be made to a single device in a relatively simple and time-saving manner.

Terminal blocks are an essential part of any electrical system and panel mount terminal blocks are no exception. With the right terminal block, you can quickly and easily make connections between various components in your system. Panel mount terminal blocks come in two basic types, feed-through and split-type, and each type has its own specific application fields and working principles. So, when choosing the right terminal block for your project, make sure to select the type of terminal block that fits your needs.

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