1776544-4

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Terminal blocks are electrical interconnect solutions that facilitate both assembly and task-orientated wiring. Barrier terminal blocks provide an additional physical layer of protection either side of the connection point.The 1776544-4 Terminal Block is a 20A barrier block from the GCK tension clamp series by Phoenix Contact. It is also known as a spring clamp terminal, where the wire is connected using a tensioning mechanism. The tension mechanism applies a clamping force to the wire once it is inserted into the terminal block.

Application Field

The 1776544-4 can be used in a number of different industries, such as: automotive, appliance, and marine. An advantage to this terminal block can be seen within the automotive industry, where space savings is a priority and the use of space-saving DC or AC connectors can bring great value to the customer. Moreover, with its quick-connect assembly process, it reduces installation time and increases reliability. The 1776544-4 is an excellent solution for a wide range of light/medium power and control applications.

Working Principle

The 1776544-4 consists of two specific designs; one with a polarity slide and the other without one. This terminal block allows for a secure wire and contact connection by a tensioning mechanism. The tensioning mechanism of the terminal block is designed to connect a conductor to a bus-bar or line without the risk of conductor movement or displacement. The connection can be achieved without the need for specialized tools as the clamping spring is designed to allow the conductor to be inserted with manual force.

The 1776544-4 terminal block also has two different methods of connection; screw fixing and snap-in. Screw fixing provides extra grounding capacity and is the preferred method for screw-mounted conductors. The snap-in fixing allows flexible and easily removable connections, which can be beneficial if changes in the system are required. It is also designed to be able to accept conductors up to 14.3mm2 in cross sectional area.

To increase the safety, the terminal block has an extra moving chamber component called the power interface. This component prevents an accidental touch with live terminals, providing an extra layer of protection for users. The 1776544-4 is also rated up to 20A and is approved by the both CSA and UL.

In conclusion, the 1776544-4 barrier block is an excellent solution for a wide range of light/medium power and control applications within numerous industries. Its quick-connect assembly process reduces installation time and increases reliability. The terminal block also has an extra power interface component to ensure safety.

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