outdoor outlet question


Old 07-31-09, 12:21 PM
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outdoor outlet question

I have 2 intermatic outdoor irragation timers and 2 MALIBU 500watt transformers I need to plug into an outdoor outlet. I am going to tap into my MAIN electrical box and run an outlet or two to the backyard. Should I run a 20amp or 15amp outlet (with circuit breaker) for the outlet(s)? If I run a 20 amp rather than a 15 amp (15 amp running into the home for outlets), what would be the plus?

Thanks professionals!
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Old 07-31-09, 12:29 PM
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20 amps

i'ld run a 20 amp feed, since it will allow for more future landscape tranformers / lights later
Old 07-31-09, 12:45 PM
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I would also utilize a GFCI breaker. They are a little more expensive, but you are protecting the entire line from the panel to the point of use.
Old 07-31-09, 01:46 PM
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Go with 20A and #12 wire. The #12 wire is only slightly more expensive, the labor is the same, and you have one-third more available power. A 15A circuit can support 1800W, a 20A can support 2400W.
Old 07-31-09, 02:06 PM
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I agree with everybody's posts. Adding to Chandler's post, rather then a GFCI breaker which can cost around $40 you could install a GFCI receptacle (outlet) next to your panel and feed the new 20 amp run off the line side of the GFCI. Your cost then will only be around $20. Also if you GFCI protect the entire run you will only have to bury UF cable only 12"
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