Industry News
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AC Contactor cable connection method
Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are used in power, distribution and electricity occasions.In a broad sense, contactor refers to industrial electrical appliances that use coil current to generate a magnetic field and close the contacts t...Read more -
How to choose a contactor, factors to be considered when choosing a contactor, and steps for choosing a contactor
1. When selecting a contactor, the following elements are critically considered. ①The AC contactor is used to operate the AC load, and the DC contactor is used for the DC load. ②The stable working current of the main contact point should be greater than or equal to the current of the load power c...Read more -
Thermal overload relay function
Thermal relay is mainly used to overload protect the asynchronous motor. Its working principle is that after the overload current passes through the thermal element, the double metal sheet is bent to push the action mechanism to drive the contact action, so as to disconnect the motor control circ...Read more -
Appearance of plastic shell circuit breaker
There are many types of circuit breaker, usually we contact more of the number of plastic shell circuit breaker, let’s first through a picture to see what the real body of the plastic shell circuit breaker is like: Appearance of plastic shell circuit breaker Although the shape of different ...Read more -
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
