1718216

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Terminal Blocks - Headers, Plugs and Sockets

Terminal blocks are a type of electrical connector which provide a means of connecting wiring together in order to create circuits or provide power distribution. They consist of a block of material, typically insulating plastic moulded around metal or plastic contact pins. As well as providing the physical connection, the connectors are clamped together to ensure the electrical connection between thepins is made correctly.

The physical design and materials used to create the connectors vary depending on the application field they are intended for but always provide a reliable connection for the required electrical current. Common types of terminal blocks include headers, plugs and sockets. The main difference between the types is the number of contact pins, the way in which they are mounted and the voltage rating.

Headers

Headers are a type of terminal block used in larger electrical applications. Typically the headers are mounted in specialized fixtures that expose the contact pins on the outer edge of the body. Plugs or bench top sockets are then plugged into the top head of the header. As the number of contact pins is greater than on a single block they are often called \'stacked\' headers.

Another type of header is the \'strip\' header. This differs from the stacked header by providing multiple parallel contact pins which increases the number of contacts available in the block and is more suitable for applications where a large number of pins is required.

Plugs

Plugs are a type of terminal block used in smaller applications such as in consumer electronics. The plugs are typically designed so they can be plugged into the headers or sockets found in the user device. They often provide a range of voltage ratings, from as low as 3 volts up to 250 volts depending on the application field.

The plug can have one or two contacts in it and will normally be colour coded to indicate the voltage rating of the block. The contacts are made from a range of materials, including stainless steel, brass, copper and aluminium, depending on the application. The plug also has a range of insulation materials, including plastic and rubber, as well as different mounting methods such as wire clamps, snap-in brackets and screw-in mounting terminals.

Sockets

Sockets are an electrical connector that can be used in either mains or low voltage electrical systems. They are typically used for providing electrical power and for connecting two devices together in circuits. Unlike plugs, they are not designed to be plugged into headers or other sockets, but rather designed to be screwed or clipped into place.

Sockets typically have two contact pins and can range in voltage ratings from hundreds of volts up to many thousands. They are usually made from either copper or brass and insulated with rubber or plastic to protect against shock. The insulation also serves to prevent the metal contact pins from short circuiting.

The sockets are typically mounted onto a panel, with the contact pins either exposed or behind a shrouded opening. This allows the user to quickly and safely connect their wiring to the socket contact pins, without the need to use additional tools.

1718216 Application Field and Working Principle

The 1718216 is a terminal block used in industrial and commercial applications. It is designed to be used in high voltage systems of up to 480 volts. The block is made from a rugged insulating plastic body paired with terminal contacts in brass. It has a voltage rating of up to 480 volts and an amperage rating of up to 10 amps.

To ensure a reliable and safe connection, the 1718216 terminal block has an integral locking device, which works in a similar way to a set screw. This helps to prevent the terminal block from accidentally becoming disconnected from the associated wires or other components.

The working principle of the 1718216 terminal block is simple. Two wires from the device in question are connected to the contacts of the terminal block and, when the locking device is tightened, it ensures that the wires are securely held in place preventing the connection from being lost or damaged.

The 1718216 terminal block is commonly used in industrial applications, as it can safely carry a large electrical current without the risk of shorting or overheating. It is also used in commercial applications, such as telecommunications, computers and appliances, as it is capable of carrying a wide range of voltages and currents.

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