Amazon.com: Voltage Level Translator, Icstation 4 Channel Voltage Level Converter Opto Isolator Board PNP NPN PLC Signal Converter Module 24V to 5V : Electronics
Amazon.com: 24vac relay
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Timing Relay On Delay Function DC 24V & AC 24-240V Multi-Voltage Time Relay Delay Off Switch with 7 Function Choices: Amazon.com: Industrial & Scientific
Woljay Time Delay Relay Solid State Timer 0-5 Minutes H3Y-2 AC 24V DPDT with Socket Base - - Amazon.com
IDEC RY2S-UAC24V POWER RELAY, DPDT, 24VAC, 3A, PLUG IN (1 piece): 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