Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit.

Select the type of DC relay The type of DC contactor should be selected according to the type of load current and the weight of the load, that is, AC load or DC load, light load, general load or heavy load.

Structure: The main components of the electromagnetic relay are electromagnet A, armature B, spring C, moving contact D, and static contact E. (as shown in the figure)

The reliability of electronic components consists of two parts, one is the inherent reliability of the components; the other is the reliability of the components.