Protecting against inadequate wall current

[josko]

I've got a sub and some hefty amps and am concerned a standard 15A 110 wall socket isn't enough. Is there a UPS that can deliver a peak, say, 30A current when connected to a 15A wall socket? I don't expect these 30A peaks to last very long, but is there a UPS that would seamlessly provide the extra current when needed and then recharge from the wall supply? Needless to say, I don't want to blow the 15A breaker, either.
I'm not trying to protect against surge or power loss, just trying to supply the extra power that may be needed briefly. I've been looking through the APC web page, and am not really sure they make such a thing.

 

[avnetguy]

Not sure I'd be relying on a UPS for that purpose and the proper way would be to wire in another line with a separate 15/20A breaker. Good amps will be able to supply, albeit for very short periods, high current for peaks from their internal power supply.

Are you currently tripping the breaker now?

Steve

 

[Nestor]

I've got a sub and some hefty amps and am concerned a standard 15A 110 wall socket isn't enough. Is there a UPS that can deliver a peak, say, 30A current when connected to a 15A wall socket? I don't expect these 30A peaks to last very long, but is there a UPS that would seamlessly provide the extra current when needed and then recharge from the wall supply? Needless to say, I don't want to blow the 15A breaker, either.
I'm not trying to protect against surge or power loss, just trying to supply the extra power that may be needed briefly. I've been looking through the APC web page, and am not really sure they make such a thing.

Simplest method for extra current capacity is a separate 20A cct. Run 12-3 with a ganged 20A breaker and you'll have all the capacity you will need, plus the 12 gauge wire will have a lower resistance, a good thing if your panel is a distance away.

 

[j_garcia]

There is no way around insufficient power on that circuit. Either get a new circuit installed as mentioned or try to put one or more of the devices on a separate circuit.

 

[josko]

Thanks folks - a new 20A circuit coming up.
I just wanted sure there wasn't some gizmo capable of supplementing a 15A circuit for those brief periods when more power is needed; 'cause I have to believe the average consumption of a power amp is considerably less than instantaneous peak draw. Would anybody know what those figures are?

 

[Rickster71]

Simplest method for extra current capacity is a separate 20A cct. Run 12-3 with a ganged 20A breaker and you'll have all the capacity you will need, plus the 12 gauge wire will have a lower resistance, a good thing if your panel is a distance away.

What does the 20A ganged breaker do for a single phase sub?

 

[macddmac]

It's a way of adding two circuits by running just one cable (12/3 Romex in this case for 2 20 amp circuits) with two hot conductors and a shared nuetral wire. Same effort double results!

 

[Rickster71]

What does the 20A ganged breaker do for a single phase sub?

That will teach me for posting in the early morning.
Never mind...Just realized I completely misread that post.

 

[avnetguy]

It's a way of adding two circuits by running just one cable (12/3 Romex in this case for 2 20 amp circuits) with two hot conductors and a shared nuetral wire. Same effort double results!

Just make sure the code in your area allows this.

Steve

 

[Nestor]

Just make sure the code in your area allows this.

Steve

It's quite common. Many kitchens with split receptacles have them.

But, yes, always prudent to check code.