Re: OT: Generator/Wiring

From: Terrible Tom (silvereightynine@aol.com)
Date: Sun Feb 08 2009 - 23:08:27 EST


Jamie Calder wrote:

> Oh wise list with experts in all fields,
>
> I have a 4500 continuous watt generator. It has (2) 120 volt standard
> receptacles protected by an on board 20 amp breaker and a 4 prong 240 volt
> receptacle protected by another on board 20 amp breaker. Since it's rated
> at 4500 watts should it be able to provide 37.5 amps @ 120 volts (w/v=a)?
> If so, why is it protected by a 20 amp breaker? I'm not an electrician so
> don't laugh at me too hard if I'm wrong :)
> Thanks,
> James
>

Generators are rated in surge watts and continuous watts...

You said you have (2) 120v receptacles? Meaning a total of (4) qty actual sockets to have (4)
qty plugs, plugged in at the same time?

If that is the case, you have your peak level right there. A 20 amp circuit @ 120V is 2400
watts. If each 2-socket recptacle is wired independantly, then you have the ability to pull
4800 watts between the two - which exceedes its rated continious value.

How many total circuit breakers do you have on the Geni?

As for the 20 amp breaker protecting the 240 circuit - that would be correct also. Wats is
(VxA=W) - 20 x 240 = 4800

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