What should be paid attention to when using relays?
Relays are automatic electrical appliances that connect or disconnect control circuits according to changes in certain input signals to achieve automatic control and protection of electrical devices.
1. Rated working voltage: refers to the voltage required by the coil when the relay is working normally. Depending on the model of the 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. Pull-in current: refers to the minimum current that the relay can produce a pull-in action. In normal use, the given current must be slightly greater than the pull-in current so that the relay can work stably. 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 burn.
4. Release current: refers to the maximum current that the relay produces a release action. When the current in the pull-in state of the relay decreases to a certain extent, the relay will return to the unpowered release state. The current at this time is much smaller than the pull-in current.
5. Contact switching voltage and current: refers to the voltage and current that the relay is allowed to load. It determines the voltage and current that the relay can control. It should not exceed this value during use, otherwise it is easy to damage the contacts of the relay.
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies.
Privacy Policy