What Are The Technical Parameters Of The Relay?

Before purchasing a relay, you need to pay attention to some technical parameters. If you do not pay attention to these parameters when purchasing, it is easy to buy the wrong relay. Today I will explain to you what parameters you need to pay attention to when purchasing relays.
1. Rated working voltage
It refers to the voltage required by the coil when the relay operates normally. Depending on the model of the relay, it can be AC voltage or DC voltage.
2. DC resistance
It refers to the DC resistance of the coil in the relay, which can be measured with a multimeter.
3. Pick-up current
It refers to the minimum current that the relay can produce a pull-in action. In normal use, the given current must be slightly larger than the pickup current so that the relay can work stably. As for the working voltage applied to the coil, it should generally not exceed 1.5 times the rated working voltage, otherwise a large current will be generated and the coil will be burned.
4. Release current
Refers to the maximum current that the relay produces a release action. When the current in the relay's pull-in state is reduced to a certain extent, the relay will return to the unenergized release state. The current at this time is much smaller than the pull-in current.