What is the electromagnetic relay

- Nov 03, 2017-

Electromagnetic relay is an electronic control device, it has a control system (also known as the input circuit) and the controlled system (also known as the output circuit), usually used in automatic control circuit, which is actually using a smaller current, lower Voltage to control a larger current, a higher voltage of the "automatic switch." Therefore, the circuit plays an automatic adjustment, safety protection, conversion circuit and so on.