Load Shedding Relay

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T74

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Does anyone have a good product for load shedding?

I'm quoting a residential detached garage with studio on second floor 120/240 v.

Loads are over 100 amps and I'm seeing if this might be a better choice than a 200 amp panel.

Car charger
Mini Split
Electric Range
Electric water heater
Sauna
 
If possible, consider leaving the mini-split available. All the others are 'nice to have,' but (depending on the climate) AC can be considered essential!
The car charger might be essential if that's the only vehicle.
 
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PaulMmn said:
If possible, consider leaving the mini-split available. All the others are 'nice to have,' but (depending on the climate) AC can be considered essential!
The car charger might be essential if that's the only vehicle.
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thanks, do you have a product you have used?
 
No... . but my ideal would be have the incoming power feed 2 breaker boxes-- one with "essential" circuits, the other with the "niceties." In event of a power incident, turn off the main breaker for the niceties. (I'm a "I can turn off the non-essentials myself" kind of guy)
 
When would you actually shed some of the load? If you're afraid of the load on the line from the house, bite the bullet and upgrade that line, put in a properly size box with a main breaker, put in a ground rod.... do it right!
 
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PaulMmn said:
When would you actually shed some of the load? If you're afraid of the load on the line from the house, bite the bullet and upgrade that line, put in a properly size box with a main breaker, put in a ground rod.... do it right!
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I would think if they have enough money for an electric car and a sauna, they'd have enough money for a 200 amp feeder and panel
 
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PaulMmn said:
When would you actually shed some of the load? If you're afraid of the load on the line from the house, bite the bullet and upgrade that line, put in a properly size box with a main breaker, put in a ground rod.... do it right!
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just trying to have some options, upgrading the line will require house service to go 400 amps...meters are still hard to get. Shedding the load might be easier.
 
T74 said:
just trying to have some options, upgrading the line will require house service to go 400 amps...meters are still hard to get. Shedding the load might be easier.
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You have actually done the load calcs using, say, 220.82?

Only saying I've seen a few upgrades that weren't actually necessary.
 
farmantenna said:
PSP products makes load sheds. What would trigger the load shed. Might have to get switching CT to trigger the PSP
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worth looking into, just make sure they will trigger on current and not frequency. I know the load management components that come with many home generators respond to drop in frequency - which works on a generator but to manage utility supplied loads the frequency isn't going to change as load increases.
 
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