120V UPS plugging into a 15A or 20A duplex

[cppoly]

In terms of connecting a portable UPS into a 15A or 20A duplex receptacle, are there any requirements that I need to be aware of?

1,700VA , 120V – can this plug into a 15A duplex receptacle or does it need to be 20A? Dedicated receptacle or no?

Thanks

 

[retirede]

Did the unit come with a factory cord/plug? If so, that’s the receptacle you can plug in to. The manufacturer’s instructions should specify if a dedicated circuit is required. It’s probably a good idea for that size load.

 

[jap]

Does it come with a 15 amp male cord end?

A dedicated receptacle outlet is singular.

A duplex receptacle is more than 1 place to plug in.

Jap.

 

[LarryFine]

The UPS capacity has little to do with the current it needs for the load or for recharging.

 

[jap]

Did the unit come with a factory cord/plug? If so, that’s the receptacle you can plug in to. The manufacturer’s instructions should specify if a dedicated circuit is required. It’s probably a good idea for that size load.

You beat me to it.

JAP

 

[cppoly]

I have to check the 15A or 20A cord end.

My concern that I'm thinking of though is that since the load is 1,700VA and if the batteries are charging (could be 2A up to 8A I've seen on some data sheets) then wouldn't the 1,700VA + 960VA (8A charging) overload the circuit? I know it would only be temporary to bring the batteries up to full charge. But still a concern?

 

[jaggedben]

I have to check the 15A or 20A cord end.

My concern that I'm thinking of though is that since the load is 1,700VA and if the batteries are charging (could be 2A up to 8A I've seen on some data sheets) then wouldn't the 1,700VA + 960VA (8A charging) overload the circuit? I know it would only be temporary to bring the batteries up to full charge. But still a concern?

The UPS probably doesn't work that way. Check its documentation. My guess is that it can output 1700VA but never draws more than 8A from the receptacle for charging, no matter what you're using. But check the documentation.

 

[jap]

I have to check the 15A or 20A cord end.

My concern that I'm thinking of though is that since the load is 1,700VA and if the batteries are charging (could be 2A up to 8A I've seen on some data sheets) then wouldn't the 1,700VA + 960VA (8A charging) overload the circuit? I know it would only be temporary to bring the batteries up to full charge. But still a concern?

I never look that far into it.

The manufacturer should have all that covered with the type of cord and male end that it comes with.

JAP>

 

[jap]

With all that being said, you could still overload the circuit because it doesn't take into consideration what all else may be plugged into that circuit.

JAP>

 

[LarryFine]

. . . since the load is 1,700VA . . .

But it isn't. That's the battery/inverter capacity. The load is whatever the UPS is powering.

The battery recharging current is typically 1/10 of its capacity, and 1/10 of that at 120v.

 

[Ragin Cajun]

With all that being said, you could still overload the circuit because it doesn't take into consideration what all else may be plugged into that circuit.

JAP>

That's true for ANY receptacle.

 

[cppoly]

Thanks.

Does 210.21(B)(2) or 210.23(A)(1) 80% max load for cord and plug come into play at all? Even though the UPS is supplying multiple outlets and no individual piece of equipment connected to the UPS would exceed the 80% rating of the circuit, could an argument be made that a UPS is a a "singular" cord and plug load (since you are plugging in a singular UPS plug into a duplex receptacle) and I would have to comply with this?

 

[jap]

That's true for ANY receptacle.

Exactly my point.

JAP>

 

[jap]

Thanks.

Does 210.21(B)(2) or 210.23(A)(1) 80% max load for cord and plug come into play at all? Even though the UPS is supplying multiple outlets and no individual piece of equipment connected to the UPS would exceed the 80% rating of the circuit, could an argument be made that a UPS is a a "singular" cord and plug load (since you are plugging in a singular UPS plug into a duplex receptacle) and I would have to comply with this?

Does the label on the UPS unit actually indicate that the input current is 14.17 amps?

JAP>