NUM12

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Terminal Blocks - Accessories - Marker Strips are necessary to complete the installation of any electrical wiring project, and especially in control cabinet or in hazardous areas. The most common type of accessories are the "NUM 12 Application Field and Working Principle".

The NUM 12 Application Field and Working Principle is based on an integrated system concept. The terminal block is designed for easy field connection with both types of combinations of contacts, flat and rectangular contact. The design of the terminal block is such that they can be used in a number of applications and in a variety of locations. The application fields include from power and distributed control systems, to contact and control cabinets, that are both outdoor and indoor.

The Working Principle of the NUM 12 Application Field and Working Principle include the terminals, flat or spring contacts. The terminals are connected by a screw mechanism. The suitable screw mechanism is chosen dependently upon the type of application and the environment in which the terminal blocks are installed. This feature ensures safe, efficient and long lasting installations. It also eliminates electric contacts with the same connection point.

The terminal blocks are classified according to the number of contacts, flat or spring, as follows:

• NUM 12, for up to twelve standardized flat contacts.
• NUM 8, for up to eight standard spring contacts.
• NUM 8 M, for up to eight full-width (spring) contacts.
• NUM 9, for up to nine specialized flat contacts.
• NUM 10, for up to ten spring contacts.

In addition, the terminal blocks are designed with UV and flame resistant materials to provide a safe operation environment, and high insulation values, with temperatures from -40 degrees Celsius to +105 degrees Celsius. The contacts are also equipped with a self-cleaning system with dual contacts.

The Marker Strips supplied are standardized and must be selected according to the terminal blocks used. The marker strips are made from rigid, robust specialized plastic materials, they are designed to resist toughest in-plant environments and maintain the highest level of protection and security when used in hazardous areas. The Marker Strips are designed to be resistant against oil, spills, dust, acids and moisture. Additionally, the Marker Strips have security features such as a tamper detection feature, which will detect and alert personnel when any tampering has occurred.

The Marker Strips are numbered and colour coded to reduce operational errors and ambiguities, and since they are detachable for easy installation and maintenance. The Marker Strips can be supplied with many options for marking, as well as laser engraving. These options help to visually classify and aid the identification of the field wiring.

In conclusion, the NUM 12 Application Field and Working Principle are designed to provide an easy and reliable solution to all kinds of electrical wiring applications. The Marker Strips included enhances the safety of the system and makes it simpler to identify and manage the system. The combination of the NUM 12 soft terminal blocks and Marker Strips allows for an effective connection solution in any environment.

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