niklascoyne
New Member
Hi everyone!
Great forum.
I hope anyone of you could spare some time helping me with som unclear stuff about working with relays for my latest experiment.
My idea is to control a cars head light running on 12V with a draw of around 3A with a relay. The relay would be controlled with a microcontroller type arduino.
I will use a digital output on the arduino supplying 5V.
What is still unclear for me is how to calculate which relay to use.
If the relay is rated 12V for controlling and with a max of 10A at 120 -230V
Would this relay be able to pass 3A at 12V?.
I understand how to trigger the relay the only thing where im totally lost is how the be sure that the relay may handle 3A at only 12V:
would this work in my setup or is it only able to handle 10A at 120-230V?
SparkFun Electronics - Relay SPDT Sealed
Hope i made my self clear.
Best regards Niklas
Great forum.
I hope anyone of you could spare some time helping me with som unclear stuff about working with relays for my latest experiment.
My idea is to control a cars head light running on 12V with a draw of around 3A with a relay. The relay would be controlled with a microcontroller type arduino.
I will use a digital output on the arduino supplying 5V.
What is still unclear for me is how to calculate which relay to use.
If the relay is rated 12V for controlling and with a max of 10A at 120 -230V
Would this relay be able to pass 3A at 12V?.
I understand how to trigger the relay the only thing where im totally lost is how the be sure that the relay may handle 3A at only 12V:
would this work in my setup or is it only able to handle 10A at 120-230V?
SparkFun Electronics - Relay SPDT Sealed
Hope i made my self clear.
Best regards Niklas