Omron Relays – How relays work

Create Date: 2024-8-30 12:03:23|Source: Omron/Omron

1. Rated working voltage.

The voltage required by the coil for the relay to operate normally.

Depending on the model of the relay, it can be either AC voltage or DC voltage.

2. DC resistance.

The DC resistance of the coil in the relay can be tested with a multimeter.

3. Pick-up current.

The relay is capable of generating the minimum current for the engagement action.

In normal use, the given current must be slightly greater than the pick-up current in order for the relay to work stably. For the working voltage of the coil, generally do not exceed 1.5 times of the rated working voltage, otherwise a large current will be generated and the coil will be burned.

4. Release the current.

The relay generates the maximum current that releases the action. When the current in the relay engagement state decreases to a certain level, the relay returns to the unenergized release state. The current is much smaller than the pick-up current.

5. Contact switching voltage and current.

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 it cannot exceed this value when used, otherwise it is easy to damage the contacts of the relay.
Omron Relays – How relays work

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