# Maximum Draw on a Household Circuit?

Discussion in 'Electrical Engineering' started by Marc Miller, Jul 24, 2005.

1. ### Marc MillerGuest

I'm no electrician so I thought I post a question. What's the maximum draw
that can be connected to a standard household circuit? I have a 200amp
panel and just installed a circuit with numerous outlets and a fluorescent
light fixture on a 15amp breaker with 12/2 Romex. I put two duplex outlets
together so I would have four connections in the basement, and then the wire
was run to the garage to power the light as well as one duplex outlet. Just
curious as I don't want to get in trouble. Thanks...

2. ### keithGuest

Define "standard". In the US, few 120V outlets are rated for more than
15A, though many circuits are rated for 20A. Circuits are rated by
(and protected for) their wire size.
Why 15A?
What's the total draw? If it's less than 15A, you should be fine. THough
I'd have run a seperate feed to the garage.

3. ### Pete J. AhacichGuest

First of all, you could use a 20a breaker with 12/2.

120VAC 20 amp circuit per 500ft/^2 (Ref Table 220-3-b 1996 NEC) (Sorry. I
don't have a current code book handy to give you a ref # from.)

120Vx .80 = 16 amps; 16a/1.5a per light/outlet allows you 10 devices max.

4. ### PCKGuest

really here any 20 amp circuit would require t-slot receptacles
and they allow 12 devices (100 watt per device loaded to 80 %)
on a 15 amp circuit. unless the load is fixed and then no limit to number
of devices so long as 80%. don`t ask about electric heat as now they

5. ### AlGuest

Wall socket outlets are rated at 7.5 amps each for a total of 15 amps
per wall outlet. At least that is what the imprint on some of mine says.

Al

6. ### BudGuest

Far as I know the UL standard for a 15A duplex receptacle is 15A per
half and 20A total (if they are on a 20A circcuit). They are tested at
150% of rating.

Bud--