Main Technical Parameters of Relays
1. Rated working voltage Refers to the voltage required by the coil of the relay during normal operation. Depending on the type of relay, it can be AC voltage or DC voltage.
2. DC resistance Refers to the DC resistance of the coil in the relay, which can be measured by a multimeter.
3. Pickup current Refers to the minimum current that a relay can produce to activate. During normal use, the given current must be slightly larger than the pickup current, so that the relay can work stably. The nominal working voltage of the coil should generally not exceed 1.5 times, otherwise a large current will be generated, which may burn out the coil.
4. Release current Refers to the maximum current that a relay can produce for release action. When the current in the relay in the pickup state decreases to a certain extent, the relay will return to the release state of no power supply. At this time, the current is much smaller than the pickup current.
5. Contact switching voltage and current Refers to the voltage and current allowed to be loaded by the relay. It determines the size of the voltage and current that the relay can control, and should not exceed this value during use, otherwise the contact of the relay is easily damaged.
Post time: Jun-14-2023