Electromatic
Senior Member
- Location
- Virginia
- Occupation
- Master Electrician
I have a customer with a breaker panel in a guest bedroom. In the panel is a contactor that feeds the water heater (standard storage type) and is controlled by an ATS load shedding set of contacts. Of course, the contactor started to buzz. Instead of putting in another regular contactor which will inevitably also buzz, I'm thinking of using this solid state relay:
https://cdn.automationdirect.com/static/specs/ssclass6relays.pdf
I got the zero cross switching type and rated at 50A because it was almost the same price as 30A. Are there issues with having this kind of relay almost always "ON"? The only time it would open is if there's a loss of power AND the generator has to shed the water heater. Also, would there be any real need to use 2 of them and open both legs of the water heater? I don't see why.
Thanks as always.
https://cdn.automationdirect.com/static/specs/ssclass6relays.pdf
I got the zero cross switching type and rated at 50A because it was almost the same price as 30A. Are there issues with having this kind of relay almost always "ON"? The only time it would open is if there's a loss of power AND the generator has to shed the water heater. Also, would there be any real need to use 2 of them and open both legs of the water heater? I don't see why.
Thanks as always.