If the battery voltage is too low (e.g. 5 or 6V), the relay may drop out immediately due to undervoltage. To get around this problem, connect the solar panel directly to the battery until the voltage ...

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

These G9TA relays feature 2mΩ contact resistance, 6kV impulse withstand voltage, 250Vac max switching voltage, and 12Vdc coil voltage. The 120A (276Vac, or 100A with PF=0.5 inductive load) G9TB AC ...