Brock
Flashaholic
Here is the situation. My father in law has on peak / off peak or time of use electrical rates so I installed a panel next to his main panel that has three 20A relays that control his base board electric heaters. The relays have a 120vac coil and are fed from a simple 7 day programmable timer. Everything works great. The problem is at night he can hear the contactors humming or buzzing, I told him to turn them off and back on and that usually fixes it for a while but then they start buzzing again. I went and listened to them and they sound normal to me, but I can understand being quiet at night the noise getting annoying and unfortunately the panel is in their bedroom.
So my plan is to replace the good old contactors with SSR's. The catch is I want basically an on or off situation and the control side to be 120vac. It's been a while since I took electronics class but aren't most ssr's variable and want something like 24 or 32vdc in? Do they make plain on or off units that could be a simple straight forward swap out for the existing contactors I have in place?
So my plan is to replace the good old contactors with SSR's. The catch is I want basically an on or off situation and the control side to be 120vac. It's been a while since I took electronics class but aren't most ssr's variable and want something like 24 or 32vdc in? Do they make plain on or off units that could be a simple straight forward swap out for the existing contactors I have in place?