Main Technical Parameters Of Relays

Sep. 30, 2018

MK Relay main product technical parameters:

1. Rated working voltage

The rated operating voltage is the voltage required for the coil when the Automotive Relay is operating normally. Depending on the model of the Power 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 that the Power Relay can generate to pull in. In normal use, the given current must be slightly larger than the pull-in current so that the Automotive Relay can work 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 Automotive Relay generates to release. When the current in the state of the relay is reduced to a certain level, the Automotive 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

Contact switching voltage and current refer to the voltage and current that Power Relay is allowed to load. It determines the size of the relay to control the voltage and current, and can not exceed this value when used, otherwise it will easily damage the contacts of the relay.

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