16335-2

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Terminal blocks, also known as terminal boards or wiring terminals, are a type of electrical connector for securely joining electrical or electronic circuits. They are mainly used in industrial automation systems as the main distribution point for power and data transfer. 16335-2 is one of the major standards for terminal blocks of power distribution.

The 16335-2 is a standard published by the European Standardization Committee (CEN). It defines the design requirements for this type of terminal blocks for power distribution, such as the construction, safety requirements, design requirements, general performance of the terminal blocks, environmental tests, performance tests, and technical requirements for the type of product.

The primary aim of this standard is to ensure the safety of users and to ensure that terminal blocks offer reliable terminal connections for power distribution. Moreover, this standard helps to promote the harmonization of terminal block products in the European Economic Area (EEA) and facilitate international trade.

The 16335-2 standard has four main parts, namely; Environmental tests, Design and constructions tests, Products tests, and Mechanical tests. Each of these parts details the safety and performance requirements for different types of terminal blocks for power distribution. The main requirements for each part are summarized below:

Environmental Tests: This section specifies the test requirements for the terminal blocks in order to ensure that they have proper protection from environmental hazards such as electrostatic discharge, dampness, dust and other extreme conditions. It also ensures that the terminal blocks are manufactured with the correct materials.

Design and Construction Tests: This section defines the requirements for the design and construction of the terminal block, such as the type of material used, the quality, dimension, and other requirements.

Products Tests: This section outlines the test requirements for power distribution terminal blocks to ensure that they are able to endure current, voltage, temperature, and other tests. It also includes requirements for the contact force and contact area.

Mechanical Tests: This section specifies the test requirements for the mechanical properties of the terminal block, for example, the mechanical strength of the components. It also includes requirements for the impact resistance, shock resistance, and other requirements for the terminal block.

In addition to the requirements mentioned above, the 16335-2 standard also covers the aesthetic requirements for the terminal blocks. The standard defines the requirements for the appearance, labeling, marking and packaging of the terminal blocks. Furthermore, it outlines the guidelines for transport, storage, and disposal of the terminal blocks.

The 16335-2 standard is a comprehensive guideline for the design and manufacture of power distribution terminal blocks. It is essential for manufacturers to understand these requirements in order to produce safe and reliable terminal blocks for power distribution.

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