A relay is an automatic control device that changes the output when the input quantity (electricity, magnetism, sound, light, heat) reaches a certain value. So what are the technical parameters of the main products of the relay? Today, High sensitivity Latching Relays Wholesaler will give you an explanation.
1. Rated working voltage
The rated working voltage is the voltage required by the coil when the relay is working normally. Depending on the type of relay, it can be either an AC voltage or a DC voltage.
2. DC resistance
The DC resistance is the DC resistance of the coil in the relay and can be measured by a universal meter.
3. Pull-in current
The pull-in current is the minimum current at which the relay can generate a pull-in action. In normal use, the given current must be slightly larger than the pull-in current so that the relay can operate stably. For the working voltage applied to the coil, generally do not exceed 1.5 times the rated working voltage, otherwise a large current will be generated and the coil will be burnt.
4. Release current
The release current is the maximum current that the relay generates to release. When the current in the state of the relay is reduced to a certain level, the relay will return to the unenergized release state. The current at this time is much smaller than the pull-in current.
5. Contact switching voltage and current
The contact switching voltage and current refer to the voltage and current that the relay is allowed to load. It determines the relay can control the voltage and current, and can not exceed this value when using, otherwise it will easily damage the contacts of the relay.
The relay plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit. If you want to know more about Electromagnetic Power Relay, you can contact us directly.