▲ 7 r/esp8266
Need help wiring ESP8266 + 5V relay + 220V contactor for a 1HP water pump
I’m building an automatic controller for a 1HP single-phase 220/240V water pump using an ESP8266.
My setup:
ESP8266 / NodeMCU
5V single-channel relay module
NSI 16A contactor
Contactor coil: 220/240V AC
Pump: 1HP, approx. 4.8A
Existing MCB is already installed outside the control box
The contactor has:
1–2
3–4
5–6
A1/A2 coil terminals
u/TumbleweedOwn7828 — 12 days ago