38660-7804

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Terminal Blocks - Barrier Blocks

Barrier blocks are a type of terminal block that are generally used for higher-wattage applications, such as panel boards, switches, and motor starters. They are also used for applications where there is potential of arcing, such as DC applications. Barrier blocks offer higher current rating, higher voltage ratings, and receptacle or plug connections. With their low profile design, they require less space and are simpler to install than some of the larger terminal blocks.

Construction & Design

The major components of barrier terminal blocks are the barriers themselves, the conductor components, and the terminal screws. The conductors come in different sizes and are usually made of silver-plated copper or brass. They have insulation sleeves on the ends for protection. The barriers are typically made out of flame retardant plastic, although they can be made of any suitable material. The terminal screws clamp down on the conductors to ensure a secure connection.

Working Principle

The working principle of a barrier block is fairly simple. The conductor components are inserted into the barrier block receptacles. The terminal screws are then tightened to ensure a secure connection. In addition, some barrier blocks may have additional jumper connections, which allow for the connection of multiple terminals together. This allows for the connection of two or more conductors without the need for additional terminal blocks.

Applications of 38660-7804

The 38660-7804 barrier block is a type of terminal block that is commonly used for wiring connections on DC applications. It is often used in automotive, aerospace and marine applications, due to its ability to handle high shock and vibration levels. This terminal block is often used in applications where there is a possibility of arcing, such as electric motors and wiring for solar panels.

Advantages

The main advantages of using a 38660-7804 barrier block are its robustness, high current and voltage capability, simple and cost effective installation, and its resistance to arcing. It can handle high vibration and shock levels without deterioration, making it an ideal choice for many applications. Additionally, it takes up less space than regular terminal blocks, making it easier to install in tight spaces.

Disadvantages

The main disadvantage of the 38660-7804 barrier block is its relatively high cost. Additionally, it can only accommodate a small number of terminal connections, and may require the use of additional terminal blocks and connection hardware for more complex wiring applications. Finally, it may require special tools for proper installation.

Conclusion

The 38660-7804 barrier block is a robust terminal block suitable for a variety of higher wattage applications. It is often used in automotive, aerospace, and marine applications due to its ability to handle high shock and vibration levels. Additionally, it is resistant to arcing, making it ideal for DC applications. While the cost of using a barrier block is relatively higher than a regular terminal block, its advantages make it well worth the investment for those looking for a reliable and durable terminal block.

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