TB0900L-13

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Thyristors are items of semiconductor components that generally use three-or-more-terminal devices for control of electric current. This current control can be applied to components for a variety of purposes, such as the regulation of power for varying loads; providing protection for electrical circuits from excessive temperature, short circuit damage, and overvoltage conditions; and the managing or regulation of light sources such as incandescent light bulbs or light-emitting diodes (LEDs). One particular type of thyristor component is the TB0900L-13 and this item is used for various power control purposes.

Overview of the TB0900L-13

The TB0900L-13 is a high-efficiency thyristor phase-control type main power switch with built-in temperature and overcurrent protection. This component is rated at up to 900 A and rated blocking voltage up to 1300 V, making it suitable for use in electrical switchgear, power conversion, motor speed adjustment, dimming, and other such applications. The dimension specifications are relatively compact meaning that the TB0900L-13 can be conveniently installed in limited space. The item features a thermal protection which cuts off the circuit when the temperature exceeds a pre-determined level, and it also has overcurrent protection which stops the circuit when the current exceeds a set level.

Application Fields of the TB0900L-13

The TB0900L-13 is suitable for a variety of industrial applications including the control of electrical motors; motor speed adjustment; regulation of lights; and regulation of power for varying loads. It has an excellent temperature-current protection ratio and is especially suitable for use in low- and medium-power industries. This makes the item suitable for various applications, such as household appliances, telecommunications, air conditioners, servo motors, power supply equipment, heating, welding and cutting, and other types of industrial equipment. As mentioned earlier, the thyristor switch also provides overvoltage protection as well as protection from short circuit damage.

Working Principle of the TB0900L-13

The TB0900L-13 comes with two "detecting" diodes, which are used to detect the level of voltage and current. The device can sense both switch-on and switch-off surge conditions, such as overvoltage, high temperature, and overcurrent, and it functions as an AC switch. When an overcurrent or overvoltage situation arises, the TB0900L-13 detects the particular type of problem and shuts the circuit off instantly. In addition, the device has a “trip” feature which turns off the power supply when the situation persists. The two diodes can also sense when voltage is too low and when the temperature outside is too high.

Conclusion

The TB0900L-13 is a highly efficient thyristor switch that is suitable for a range of industrial applications. The two built-in detecting diodes make this device ideal for short circuit protection, temperature control, overvoltage protection, and motor speed adjustment. Its small size and its temperature-current protection ratio make it suitable for use in low- and medium-power industries, such as for household appliances, telecommunications, air conditioners, and servo motors.

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