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NOYITO 8-Channel Relay Module High Low Level Trigger with Optocoupler Isolation Load DC 30V AC 250V 10A for PLC Automation Equipment Control Industrial Control (8 Channel 12V): Amazon.com: Industrial & Scientific
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CZH-Labs DIN Rail Mount 24V Passive 4 SPST-NO 30Amp Power Relay Module.: Amazon.com: Industrial & Scientific
Amazon.com: HiLetgo 4 Channel 24V Relay Module with OPTO-Isolated Support High and Low Level Trigger for PLC Automation Equipment Control : Industrial & Scientific
Electronics-Salon DIN Rail Mount 8 SPDT Power Relay Interface Module. (Operating Voltage: DC 12V): Amazon.com: Industrial & Scientific