Here's a suggestion for a solid-state relay option:
Solid-State Relay Option:
Consider using the Omron G3NA-210B solid-state relay. This part features a 24 V DC input control and is rated for AC loads (suitable for your 220 V AC requirement). Its solid-state nature avoids mechanical wear, providing increased durability.
Now, for the next clarifying question:
LED Indicator Drive:
Would you prefer each LED to have its own current-limiting resistor, or are you planning on using an LED driver circuit for the 8 indicators? Please let me know (or if you have any particular LED model in mind, mention that as well).
Great choice! We'll use a solid-state relay with a 24 V DC coil that can handle 220 V AC on the output, and each LED will have its own resistor for current limiting.
Here's the third clarifying question:
Sensor Interface Details:
How are your sensors delivering control signals? Are they digital outputs (e.g., open-drain or push-pull signals) at a specific voltage level (e.g., 5 V or 3.3 V)? This will help determine if additional interfacing (like level shifting or buffering) is needed.