Generator Size calculation question -

[hopedale]

Working on calculating the watts per device. The instructions I found read as follows, "Find the amperage listed on the UL label. Multiply that by the voltage of the appliance. For example, the UL label on a refrigerator shows the appliance uses 115 volts and draws 6 amps. Six amps multiplied by 115 volts equals 690 watts."

So out the gate the first device I look at I don't see the UL label, but it has this info:

POWER SUPPLY
Main supply voltage 100-120 V ~60 Hz
External 12V AC/DC / 5A adapter
Power (IEC 62087 Ed2): 60W max

So, the question I have is would it be the 12v * 5A thus they've already given me the watts at 60W?

[WItoTX]

P (watts) = A(amps) x V (Volts)

Yes, you are correct.

[Mike D]

One correction; household voltage is 120V so use that for your multiplier if you have the amps.

On your example you listed the 60 watts shown is on the 12V side, not the 120V side. What does this power supply go to?


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[hopedale]

One correction; household voltage is 120V so use that for your multiplier if you have the amps.

On your example you listed the 60 watts shown is on the 12V side, not the 120V side. What does this power supply go to?


Sent from my iPhone using Tapatalk Pro

It is the Cable box\router provided by Suddenlink model sagemcom dgci384

[HogHunter34]

I have a NEC book on how to calculate load on a residence
It breaks typical lightning at 3VA per SF
Then will get into general purpose loads, dedicated, largest HP motor, etc
It will have less than 100% load factor on some of these
I actually calculated my entire home load

[hopedale]

I have a NEC book on how to calculate load on a residence
It breaks typical lightning at 3VA per SF
Then will get into general purpose loads, dedicated, largest HP motor, etc
It will have less than 100% load factor on some of these
I actually calculated my entire home load

Can anyone get a copy, and would they understand it?