Depending on load current. You may want to consider using a low on
resistance N mos fet as the switching element.
There is almost no stand operating current.
Frank Lewon
On 2/11/2014 6:43 PM, Larry Crutcher, Starlight Solar Power Systems wrote:
Hello Wrenches,
We're preparing to offer Lithium batteries to some of our customers as
a replacement to lead acid in recreational vehicles. RV batteries can
have multiple charge sources simultaneously so I have worked out
protective circuitry to interface with a EMS computer. To insure
failsafe operation, I need to install 2 solenoids that will be active
24/7, opening only when fault conditions are met.
The solenoids I have looked at (200 amp) have a coil current of about
1 ampere each which equates to 600Wh daily consumption. I'de like to
reduce that BUT the computer only provides a +12v or 0 volt state.
* Does anyone know of a latching solenoid that will work with a 12v
hi/lo voltage state,
* OR an interface or circuit for hi/lo to control latching relay
* OR a solenoid with a very low quiescent current when on?
Many thanks in advance,
Larry Crutcher
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