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Structural principle of the contactor
Structural principle of the contactor Contactor is under external input signal can automatically turn on or off the main circuit with load automatic control appliances, in addition to control motor, can also be used to control lighting, heating, welder, capacitor load, suitable for frequent opera...Read more -
The three major attributes of the AC contactor
First, the three major attributes of the AC contactor: 1. The AC contactor coil.Cils are usually identified by A1 and A2 and can be simply divided into AC contactors and DC contactors. We often use AC contactors, of which 220 / 380V is the most commonly used: 2. Main contact point of the AC conta...Read more -
Thermal overload relay maintenance
1. The installation direction of thermal relay must be the same as that specified in the product manual, and the error shall not exceed 5°.When the thermal relay is installed together with other electrical appliances, it should prevent the heating of other electrical appliances.Cover the heat rel...Read more -
MCCB common knowledge
Now in the process of using plastic shell circuit breaker, we must understand the rated current of plastic shell circuit breaker. The rated current of plastic shell circuit breaker is generally more than a dozen, mainly 16A, 25A, 30A, and the maximum may reach 630A. Common sense of plastic shell ...Read more -
How the contactor interlock?
Interlock is that the two contactors cannot be engaged at the same time, which is generally used in the motor positive and reverse circuit. If the two contactors are engaged at the same time, a short circuit between the power supply phase will occur. The electrical interlock is that the normally ...Read more -
What is the different between AC contactor and DC contactor?
1) What is the structural difference between the DC and AC contactors in addition to the coil? 2) What are the problem if the AC power and voltage connect the coil at the rated voltage of the coil when the voltage and current are similar? Answer to Question 1: The coil of the DC contactor is rela...Read more -
How to select AC contactor
The selection of contactors shall be conducted according to meet the requirements of the controlled equipment. Except that the rated working voltage shall be the same as the rated voltage of the charged equipment, the load rate, use category, operation frequency, working life, installatio...Read more -
AC contactor application
When talking about the AC contactor, I believe that many friends in the mechanical and electrical industry are very familiar with it. It is a kind of low-voltage control in the power drag and automatic control system, used to cut off the power, and control the large current with a small current. ...Read more -
ZHEJIANG INDUSTRIAL AUTOMATIC MACHINE TOOL EXHIBITION
ZHEJIANG INDUSTRIAL AUTOMATIC MACHINE TOOL EXHIBITION is open on April 28th. This exhibition include artificial intelligence,industrial controls, etc. In recent years, although the industrial Internet has gradually landed from concept, the scale popularization and application has not yet come.O...Read more -
Three phase electricity will be limited in all China industrial zone
Recently, many places across the country have limited electricity and production.As one of the most active economic development regions in China, the Yangtze River Delta is no exception. Corresponding measures include enhance planning, leave enough time for enterprises; increase accuracy, adjust...Read more -
130TH CECF
Some representatives of enterprises participating in the 130th China Import and Export Commodity Fair (the Canton Fair) warmly discussed the opening up, cooperation and trade innovation at the Canton Fair Pavilion on the afternoon of the 18th. These representatives of enterprises shared the inte...Read more
