06-22-2021, 02:55 PM
As suggested, I consider using SSR relays as secondary relays to protect the built-in relays from load. My load is for lighting/blinds only (each channel should require < 300W).
I noticed that the SSRs are typically sold for loads of 10A/25A/40A. The prices are quite the same (the extra load capacity costs a few extra cents). I also noticed that when the environmental temperatures gets higher a 10A SSR can withstand <10A load (the same goes for the 25A & 40A SSRs). Why shouldn't I just purchase the 40A to maximize its life expectancy?
Lets assume I use a fixed eventual load of 5A for the lighting channel (for example). Does the 40A SSR require a higher *operating load* than the 10A SSR, and by so might wore more the actuator's built-in relay?
Thanks a lot!
Elad
I noticed that the SSRs are typically sold for loads of 10A/25A/40A. The prices are quite the same (the extra load capacity costs a few extra cents). I also noticed that when the environmental temperatures gets higher a 10A SSR can withstand <10A load (the same goes for the 25A & 40A SSRs). Why shouldn't I just purchase the 40A to maximize its life expectancy?
Lets assume I use a fixed eventual load of 5A for the lighting channel (for example). Does the 40A SSR require a higher *operating load* than the 10A SSR, and by so might wore more the actuator's built-in relay?
Thanks a lot!
Elad