I always just presumed there was a contactor in the box because I thought they could remotely turn off customers for non-payment, or non-important customers at peak demand.

On 1/2/2017 11:16 AM, Seth Mattinen wrote:
On 1/2/17 8:29 AM, Chuck McCown wrote:
I have never seen one or had one installed, but I believe they somehow
control a load  but I don't know if the load that they shed is directly
connected to the meter or if it only controls a remote contactor.
Perhaps you could cause an overheat by rapidly cycling a relay
controlling an air conditioner.  Sounds more like FUD/Fake news to me.


The only thing I've heard of practically is an external connection to load shed a central air conditioner's contactor for peak shaving, which just interrupts the 24V control signal from the thermostat's Y terminal.

I haven't personally seen a service entrance smart meter with a contactor in it to control a 100A or greater service. I suppose some elongated beast could exist (no way a big contactor is fitting into a normal sized housing), but I don't know what the practical purpose of such a thing would be.

~Seth

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