Remote water pump switch - latching relay?
I want to install remote water pump switches that operate a latching relay to turn the pump on/off with a single press of a momentary contact switch. I'm tired of being out in the boonies and getting...
Forum Discussion
Chris Bryant wrote:OnaQuest wrote:
The Intellitec Monoplex Controller has less than
2 milliamps standby current. Your batteries loose more charge, just sitting totally disconnected, than that. I doubt very seriously that the average RVer caries a meter that will detect, much less measure, that.
I thought that as well, but then realized that while the standby current is negligible, they don't give a working current- while the pump is on (but not running). I suspect that it is holding a relay closed, which would draw more current. I could be wrong though- they do use latching relays in other applications.
They don't use a relay, it's a field effect transistor. When the controller is OFF, there is NO standby current at all. When ON, once the pump comes up to pressure, and opens the internal contacts to stop the pump, the controller is in STANDBY and that's when the 2 milliamp current would apply.
These controllers are used in radio circuitry as well as motor circuits. Actually, anywhere low voltage control wiring is required or applicable.
