Rated working voltage refers to the voltage required by the coil when the buy relays work normally. Depending on the model of the relay, it can be either AC or DC voltage.

Expand the scope of control. For example, when the control signal of a multi-contact relay module reaches a certain value, multiple circuits can be switched, disconnected, and connected at the same time according to different forms of contact groups.

The insulation resistance value of the conductive part of the 5v relay between the non-conductive metal part (such as the iron core) and the shell, and between the conductive parts that are not electrically connected.

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