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[Solved] Power Control Box Mechanical Relay Wiring

New Member
Joined: 11 months ago
Posts: 1
Topic starter  

Amazing job Kyle! This is awesome. I did notice that in your Youtube video the wiring is different from the diagram you drew for the wiring of mechanical relay in the power control box. 


Looks like the live wires are in the 2nd and 5th slots

Youtube Relay Screenshot


They are in the 1st and 4th slots in the diagram


I am assuming the diagram is correct but just wanted to clarify. 

Thanks a lot!

Kyle Gabriel
Member Admin
Joined: 7 years ago
Posts: 612

For each relay, the middle is common, left is normally closed, and right is normally open. What you're trying to achieve is for the circuit to be closed when the relay is activated, and this can be wired in multiple ways to achieve this. The diagrams may not always align 100%, but their effect is the same.

Mycodo Developer

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