So if anyone worked with this kind of relay before, can you show me a design that you used to power anything (for example a light bulb) there are a lot of designs on internet, but they are all different, also I live in Europe.
Also I want to use it with a Arduino.

 

Can you get a better closeup? The relay has important details written on it.

 

Can you get a better closeup? The relay has important details written on it.

Here is the same model I found online https://www.aliexpress.com/item/4000450623726.html

 

Hello,

Does this help:

Bertus

 

Hello,

Does this help:
View attachment 230370
Bertus

almost, but I don't know what to connect to the other side, I know I need to connect something from a electrical outlet

 

Hello,

Is this more clear:

Bertus

 

The relay module you are considering is ideal for use with an Arduino. The relay coil is optically isolated from the input signal so it would work well switching loads of any kind. The contacts are rated at 10A, 250VAC or 15A, 125VAC.
Here is a tutorial on how to use it:
https://randomnerdtutorials.com/guide-for-relay-module-with-arduino/

 

The relay module you are considering is ideal for use with an Arduino. The relay coil is optically isolated from the input signal so it would work well switching loads of any kind. The contacts are rated at 10A, 250VAC or 15A, 125VAC.
Here is a tutorial on how to use it:
https://randomnerdtutorials.com/guide-for-relay-module-with-arduino/

thank you

 

@bertus has nailed it. The 3 screw terminals are where the load connects. NO means normally open, or off and disconnected. NC means normally closed, on, circuit completed. "Normal" means with the relay coil unpowered, the default position. You decide which behavior you want by where you place the leads.

For a lightbulb you can switch either the hot line (black wire in most U.S. home wiring) or the neutral (white wire). It's conventional and safer to switch the hot side.

It may be obvious but don't bring both power wires to the relay. Connecting them would blow up your relay and trip the circuit breaker.

 

hi,
Even though some of these relay modules are fitted with an opto-isolator, they do not provide isolation to the driving transistor or relay coil.
Only the relay contacts provide the isolation to the load.

E

 

@bertus has nailed it. The 3 screw terminals are where the load connects. NO means normally open, or off and disconnected. NC means normally closed, on, circuit completed. "Normal" means with the relay coil unpowered, the default position. You decide which behavior you want by where you place the leads.

For a lightbulb you can switch either the hot line (black wire in most U.S. home wiring) or the neutral (white wire). It's conventional and safer to switch the hot side.

It may be obvious but don't bring both power wires to the relay. Connecting them would blow up your relay and trip the circuit breaker.

Thank you, that helped

 

hi f,
Another link to an Arduino , relay guide.
https://osoyoo.com/2017/08/28/arduino-lesson-1-channel-relay-module/

E