CD421090B

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CD421090B is a thyristor module. It includes the functions of overvoltage, undervoltage, overcurrent and two-time triggers for overcurrent trip. It is widely used into different application fields owing to its excellent performance.The typical application of CD421090B is in the low voltage power distribution system, motor control and other AC systems. It can protect motors, transformers and other equipments via triggering undervoltage protection, overcurrent protection and overvoltage prevention. The module also has a built-in overcurrent detection circuit and the corresponding output function. When the module is overloaded or short-circuited, an overcurrent warning will be triggered to ensure the safety of the power equipment.

The working principle of CD421090B is that when a motor is loaded, its output current can be detected. When the output current increases, the voltage resistance of the thyristor module will decrease. If the current is beyond a certain limit, the output of the module will automatically open the circuit, therefore separating the circuit from the power source and protection the motor from being overloaded or short-circuited. In order to reduce the impact caused by surges in the output current, the circuit design of this module is also optimized.

The overload protection of CD421090B is adjustable. In most cases, this module can work in the rated current from 0.6 to 1.6 times depending on the device it is connected to. The overvoltage and undervoltage protection of this thyristor module can be adjusted optionally and the terminals can also be equipped with branch unit of short-circuit protection. In addition, it has low power dissipation, high dielectric strength and flicker-free contactless mode, making the module sturdy and durable.

CD421090B thyristor module is a reliable device specially designed to ensure the safety of electrical equipment by providing overvoltage and overcurrent protection. It has the advantage of adjustable current and voltage. Its small size, simple assembly and high reliability make it ideal for numerous electrical applications. In conclusion, the CD421090B is an excellent choice for industrial and commercial settings due to its impressive efficiency, accuracy, and reliability.

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