A-TB500-TL21SB

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Terminal Blocks - Wire to Board

A-TB500-TL21SB is one type of terminal block with a wire-to-board connection system, used for linking wires to a printed circuit board. Terminals are designed to be safety devices for the protection against electric shock. Additionally, it also offers an electrical protection against thermal, mechanical and chemical stresses.

A-TB500-TL21SB consists of an insulated body made of heat-resistant thermoplastic material, and with a spring-loaded clip that secures the wire in the terminal. The body has a series of copper contacts, designed to make contact with a printed board, ensuring a solid, reliable connection. The copper contacts are insulated with a boot covering, which also provides protection against electric shock. Another important element is a locking tab that secures the terminal connection.

The main application fields for A-TB500-TL21SB are: heavy-duty equipment, circuit breaker panels, automotive connectors, mechanical and electrical control panels, and relays. It can also be used in various industrial settings, such as carwashes, workshops, and construction sites.

The working principle of A-TB500-TL21SB is quite simple. When a wire is inserted into the terminal block, the spring-loaded clip and the locking tab securely hold the wire in place. This ensures an electrical connection between the conductor and the printed board. In order to prevent any unwanted disconnection, the locking tab provides a firm grip that prevents the terminal from loosening when being subjected to vibrations or external forces.

Next, the conducting copper contacts transfer the electric current to the PCB, enabling an electrical circuit to be formed. This comes with an insulation protection by covering the contacts with a rubber or thermoplastic boot. Additionally, the rubber boots also provide support and enable the terminal to fit into the corresponding slot in the printed board.

Finally, the terminals are designed for wide temperature ranges and can resist corrosion. This means that the terminals can withstand extreme temperatures, vibration, and shock, ensuring a reliable connection between wires and a printed circuit board.

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