Quad Store 5V 4 Channel SSR G3MB-202P Solid State Relay High level Trigger Module For Arduino

Product Description:

4 x DC 5V SSR High Level Triggering Module – 2A is used to connect 4 AC loads to your arduino. This module is equiped with Solid State Relay (SSR) which enables fast switching operation. This module has operating voltage of 5V.

High level triggerring refers to the signal trigger end (IN) had a positive voltage and the negative pole of the power supply, usually with the trigger end of a trigger connected with the positive pole of a power supply, when the trigger end has a positive voltage or to trigger voltage, the relay is attracted.