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Front view of 5V 250V 12A relay board Close up of 5V 250V 12A relay board Underside of 5V 250V 12A relay board Back view of 5V 250V 12A relay board Measurement of wide spaced mounting holes of 5V 250V 12A relay board Measurement of the narrow mounting holes of the 5V 250V 12A relay board
Front view of 5V 250V 12A relay board Close up of 5V 250V 12A relay board Underside of 5V 250V 12A relay board Back view of 5V 250V 12A relay board Measurement of wide spaced mounting holes of 5V 250V 12A relay board Measurement of the narrow mounting holes of the 5V 250V 12A relay board
Introduction:

The relay board will turn on standard electrical devices up to 12 amps and 250 volts using a standard 5v signal.

Description:

A relay board acts like an automatic switch to turn on and off electrical devices and appliances. The relay board has the capability of turning on and off devices that typically plug in to the wall outlet, but many more types devices can be operated from this relay switch.

If a 5v signal is applied to the relay board, then the relay makes a connection between the P and O terminals and breaks the connection between the P and S terminals. Therefore, you can have things turned on in scenarios where the 5v is applied or if the 5v is not applied, depending on how it is wired.

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