Hi. I hope someone can help me with use of relays. I'm very much an amateur but I do understand the basics. My question is as follows.
I want to use a relay to switch on a fan when a certain temperature is reached. I have a temperature controller with a probe and I know how to wire it up. What I want to do is to also connect a relay to the controller so that when the temperature is below a set point the relay is held in the NO position. When the temperature is exceeded the controller will cut off the power and the relay will drop to the NC position and that is when the fan will be switched on. So the fan is connected on its own circuit to the NC pole but the reply is held in the NO position for prolonged periods.
Question...can a relay be used like this or would the coil be prone to overheating if expected to hold in the NO pole position for days at a time?
Thanks for the help.
PS....sorry if my terminology isn't quite right...hopefully I got the point across all the same.
I want to use a relay to switch on a fan when a certain temperature is reached. I have a temperature controller with a probe and I know how to wire it up. What I want to do is to also connect a relay to the controller so that when the temperature is below a set point the relay is held in the NO position. When the temperature is exceeded the controller will cut off the power and the relay will drop to the NC position and that is when the fan will be switched on. So the fan is connected on its own circuit to the NC pole but the reply is held in the NO position for prolonged periods.
Question...can a relay be used like this or would the coil be prone to overheating if expected to hold in the NO pole position for days at a time?
Thanks for the help.
PS....sorry if my terminology isn't quite right...hopefully I got the point across all the same.