whatismouse
New Member
- Joined
- Oct 11, 2020
- Messages
- 76
So my inverter has a low voltage disconnect which cuts power to the AC output when battery voltage reaches a setpoint (in my case I have it set to 48.5V).
But my DC/DC converter which I use to power my 12V loads has no such disconnect.
I want to turn off my 12V loads at the same time as my 120VAC loads are cut. So one idea was to use a relay with a 120V coil. This way when the LVD cuts AC power, the relay will switch, and turn off 12V power as well.
I purchased this one: https://www.amazon.com/gp/product/B07FCJFGL9/ref=ask_ql_qh_dp_hza
Now I'm thinking its overkill because my dc/dc converter is only 30amps rated @12V anyways. And the current to run the coil in the relay, if it is several watts, means 100+ extra watts/day. Just to run a coil that I dont anticipate tripping but once every several months or so....
I could suffice with a smaller electromechanical coil that draws less wattage, but is there another solution that doesn't require activating a coil continuously with AC power?
But my DC/DC converter which I use to power my 12V loads has no such disconnect.
I want to turn off my 12V loads at the same time as my 120VAC loads are cut. So one idea was to use a relay with a 120V coil. This way when the LVD cuts AC power, the relay will switch, and turn off 12V power as well.
I purchased this one: https://www.amazon.com/gp/product/B07FCJFGL9/ref=ask_ql_qh_dp_hza
Now I'm thinking its overkill because my dc/dc converter is only 30amps rated @12V anyways. And the current to run the coil in the relay, if it is several watts, means 100+ extra watts/day. Just to run a coil that I dont anticipate tripping but once every several months or so....
I could suffice with a smaller electromechanical coil that draws less wattage, but is there another solution that doesn't require activating a coil continuously with AC power?