ESP8266 Community Forum

Posted: **Fri Oct 16, 2015 1:15 am**

Hi
i have made this on a pcb and its working ok. now i want to add a fuse on 230v . Can anybody guide me where i should add the fuse for protection.

Thanks

esp8266-uln-relay_bb.jpg

Posted: **Fri Oct 16, 2015 1:57 am**

uln2003 driving direct 230v? is it right?

Posted: **Fri Oct 16, 2015 5:28 am**

if uln2003 is not right please recommend what to use

Posted: **Fri Oct 16, 2015 8:02 am**

alonewolfx2 wrote:uln2003 driving direct 230v? is it right?

I hope not, since ULN2003 or ULN2803 are rated for 500mA/50VDC maximum. Also, they are driving DC not AC.
It should only drive the relay coil with DC, which I hope in this case is lower, something like 12VDC or 24VDC.

ESP8266 Community Forum

esp8266 + uln2003+relay schematic

esp8266 + uln2003+relay schematic

Re: esp8266 + uln2003+relay schematic

Re: esp8266 + uln2003+relay schematic

Re: esp8266 + uln2003+relay schematic