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Advantages of Terminal Blocks and Their Standards

2021-05-29

Terminal Block Standards: Due to the importance of terminal blocks, they must comply with relevant safety and environmental standards when designed and used. Only by meeting these standards can users purchase and use them with confidence, thus avoiding potential safety hazards. Generally, when designing and standardizing products, manufacturers of terminal blocks follow GB/T 5095-1997 (Electromechanical Components for Electronic Equipment - Basic Test Procedures and Measurement Methods) and UL486E, UL1059.

Innovation of Terminal Block Products in Their Field:

With the increasing frequent use of terminal block products in the wiring field, more and more users are placing higher demands on them. As a result, the structure and wiring methods of terminal blocks have undergone significant changes. From the initial single structure, various wiring structures have been developed, categorized to suit different wiring environments, greatly facilitating our use. At the same time, the structure of terminal blocks has become more user-friendly, and the wiring speed has been greatly increased, reducing the labor intensity of workers. In addition, the reliability of terminal blocks has also been enhanced. The introduction of new production processes and technological equipment, along with scientific production processes and quality control methods, has significantly improved the quality and lifespan of terminal blocks. With the growing call for environmental protection, it is essential to meet the environmental requirements for terminal blocks. The addition of halogen-free flame retardants, the non-toxicization of conductors and insulators, and the lead-free plating of terminal blocks are all positive responses to this demand.

Insulating Materials:

Nylon (PA66): This material has a flame retardant rating of V0 and contains no harmful halogens. It offers superior flame retardancy, ensuring safety and environmental protection.

Thermoplastic Polyester (PBT): PBT is another commonly used material known for its excellent electrical insulation properties and high-temperature resistance.

Liquid Crystal Polymer (LCP): LCP is used to accommodate through-hole reflow technology, providing enhanced performance and reliability in the manufacturing process.

Screw-type Terminal Blocks:

Screw connection type printed circuit board (PCB) terminal blocks have always held an important place in the electronics industry and have now become an essential component of PCBs. Their structured design takes into account both the convenience of wiring and the reliable screw connection.

Spring Connection Terminal Blocks:

Printed circuit board (PCB) terminal blocks with spring connections are available in two types: pull-back spring connection and butterfly spring connection. Among them, the pull-back spring connection terminal blocks are compatible with screw-type terminal blocks, greatly increasing flexibility. Reliable connection: front connection, visible connection, low maintenance, and no need for tightening.

IDC Wire-Strip-Free Quick-Connect Terminal Blocks:

IDC wire-strip-free quick-connect terminal blocks enable rapid connection of insulated wires without the need for any tools. By actuating the lever, the wire is pushed into the blade, which cuts through the insulation to achieve a gas-tight connection. This wiring method saves up to 60% of the wiring time, eliminating the need for wire stripping and tools; all that is required is to cut the wire, and that's it. Moreover, it is certified for use in Ethernet cabling (Category 5 cable).

Regardless of the connection method, terminal blocks have the following advantages:

1.Large Wiring Capacity: They can accommodate various wiring requirements.

2.Mechanical Decoupling of Clamping Frame and Soldering Pin: Since the clamping frame and soldering pin are not integrated, the torque from tightening the screw is not transmitted to the solder joint.

3.Quadrangular Soldering Pin with Tapered End: When inserted into the solder hole, the quadrangular shape with a tapered end increases the contact area. This allows solder to easily flow into the hole, reducing the likelihood of cold solder joints.

4.Copper Alloy Soldering Pin: The soldering pin is made of copper alloy, and the absence of contaminants ensures long-term reliability of the solder joint.

5.Tin-Plated Soldering Pin: Tin plating on the soldering pin facilitates easy soldering.

6.Heat Dissipation Channels: Terminal blocks are designed with heat dissipation channels to manage heat effectively.

7.Tapered End of Soldering Pin: The tapered end of the soldering pin makes installation easier.

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