768319-1

Electrical relay device, its official name is "electromagnetic switch", is a device that can control the operation of a circuit according to certain rules by automatic control. The application field of the electromagnetic switch is very wide, including communications, automatic control, instrumentation, power electronics and other fields, and the electromagnetic switch has two commonly used models, one is the AC electromagnetic switch, and the other is the DC electromagnetic switch. Among them, the type 768319-1 electromagnetic switch belongs to the DC electromagnetic switch.

The specific working principle of a DC electromagnetic switch can be described as follows: it separates two input circuits by a power relay cooperating with certain driving current. When the current is not greater than the rated current of the relay, the input current is cut off so that the current can not pass through. When the current rises to the rated current of the relay, it lets go. Then the current passes through it, and the relay itself can control the circuit.

The type 768319-1 DC electromagnetic switch is mainly used for automatic control devices such as household air conditioners and lighting fixtures. This electromagnetic switch has two input circuits and two outputcircuits. It has a circuit opening condition that does not allow the power to pass through and thecircuit can be operated only when the two input circuits satisfy the preset conditions. It also has tworelay action bands for the purpose of limiting the current.

One of the main applications of the type 768319-1 DC electromagnetic switch is in the Automatic Control Unit of Household air conditioner. This unit can detect the temperature of the indoor air and compare it with the temperature setting table, so that the air conditioner will start up or shut down when the temperature reaches the predetermined temperature range. Then the DC electromagnetic switch is used to control the start and stop of the compressor and the fan. That is, in the Automatic Control Unit, the DC electromagnetic switch realizes the switching control of the compressor and fan by cooperating with other parts of the unit.

In addition, it can also be used to control household power supply, lighting fixtures, and other electrical system depending on the specific application field. All in all, the type 768319-1 DC electromagnetic switch is a necessary and important component for achieving automatic control and switching electricity in various circuits.