How a Relay Works - Normally Open vs Normally Closed
![](https://i.ytimg.com/vi/hEBDMRDq9eo/mqdefault.jpg)
5:20
How I Learned Electrical Controls & Automation
![](https://i.ytimg.com/vi/4P2EoY_r7qg/mqdefault.jpg)
22:49
How to Fault Find Electrical Control Circuits
![](https://i.ytimg.com/vi/lNlWqbPeuUA/mqdefault.jpg)
8:20
Why I Think Beginners Should Master Electrical Schematics First
![](https://i.ytimg.com/vi/NwxSsoR4OHA/mqdefault.jpg)
8:01
Why we use Relay in PLC Applications | Relay Wiring Diagram | Types of Relay-SPST, SPDT, DPST, DPDT
![](https://i.ytimg.com/vi/YWPewSaAeUM/mqdefault.jpg)
5:39
What is a normally open and normally closed switch, limit switch, and relay?
![](https://i.ytimg.com/vi/qWTnyt4VKVg/mqdefault.jpg)
57:04
How to Read Wiring Diagrams
![](https://i.ytimg.com/vi/n594CkrP6xE/mqdefault.jpg)
14:02
How Relays Work - Basic working principle electronics engineering electrician amp
![](https://i.ytimg.com/vi/c8bD59Q2Rv8/mqdefault.jpg)
22:13