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Terminal Blocks - Barrier Blocks 0387101412 (application field and working principle)

Terminal blocks provide an efficient and economical connection of two electrical conductor wires with each other, usually in a circuit board environment. A terminal block consists of two electrical connectors that are connected to each other by a connection element, such as a screw, to make a physical electrical connection between one or more wires. This connection is an integral part of the terminal block, and it ensures that the electrical contact between the conductors remains intact.

Terminal blocks are available in numerous standard designs, sizes, and current carrying capacities. One of the most common types of terminal blocks used in commercial and industrial applications is the barrier block. A barrier block consists of two insulated contact elements, which are connected to each other either by a standard barrier or by a physically isolated barrier. These two elements are then interconnected by an external connecting element, such as a screw.

Barrier blocks are mainly used for high-current applications, as they provide the best shielding against voltage, electromagnetic interference, and other environmental conditions, making them ideal for high voltage and high current circuits. They also reduce the risk of shorting out or causing ground faults due to faulty wired connections. Barrier blocks are often used in industrial control panel applications, such as motor starters, relays, contactors, electricians, and fused disconnects.

The working principle of a barrier block is simple. The two insulated contact elements of the barrier block form a break-out point, which allows the current to pass through it. The external connection element, usually a screw, is used to secure the two elements of the terminal block. This ensures an electrical connection between the two conductors, thereby creating a circuit.

The two contact elements of the barrier block can be connected to each other in different ways. The connection can either be a \'bridge\', in which case the connection is placed between the contacts, or it can be a \'cold link\', in which case the connection is inserted between the contacts at one end. In either case, the connecting element ensures that the two contacts of the barrier block are securely connected, thus ensuring a reliable electrical contact.

Barrier blocks provide a safe and reliable solution for distributing power within industrial control panel applications. They also provide excellent heat dissipation and, because of their insulation capability, are able to provide a suitable electrical connection for high-current applications.

In summary, barrier blocks are a reliable and efficient type of terminal block used for connecting two electrical conductor wires, usually in a circuit board environment. The two insulated contact elements of the barrier block form a break-out point, which allows the current to pass through, while an external connecting element, such as a screw, ensures that the two contacts of the terminal block are securely connected. This ensures both a reliable and efficient power distribution in industrial control panel applications.

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