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Old 04-27-2013, 03:56 AM   #21
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T Baggins - Please make sure you have fully functional, fairly new, smoke detectors in your trailer. Have an emergency escape plan as well.

Please!

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Old 05-02-2013, 07:09 PM   #22
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Sssooo now that we have that out of the way did anyone get a chance to look at my wiring diagram?

Would that work?

Again my main thing is I need a 30amp gfci breaker to plug my rig into.

Thanks

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Old 05-03-2013, 12:14 PM   #23
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Your diagram looks fine. And yes, the GFCI would be in the new panel. And if your control panel is rated at 30 amps, your breaker should match or exceed that requirement. Make sure you understand your code as to whether you can use PVC conduit or have to use rigid conduit. My thought is outside where the conduit is exposed to UV and anywhere it could be damaged, rigid conduit should be used.

I'm questioning your capacity - is 30 amps enough?. What is the highest wattage requirement of your heating elements? As an example, if you have 4500 watt elements, you'll need 40 amp breakers (4500 watts / 120 volts = 37.5 amps). 30 amps limits you to about 3500 watts.
And is is much safer to oversize that to heat up your wiring and breakers. My suggestions would be to go to at least 40 amp, and maybe 50 amp if your calculations determine that 40 is too little.

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Old 05-03-2013, 12:28 PM   #24
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Quote:
Originally Posted by prandlesc View Post
I'm questioning your capacity - is 30 amps enough?. What is the highest wattage requirement of your heating elements? As an example, if you have 4500 watt elements, you'll need 40 amp breakers (4500 watts / 120 volts = 37.5 amps). 30 amps limits you to about 3500 watts.
And is is much safer to oversize that to heat up your wiring and breakers. My suggestions would be to go to at least 40 amp, and maybe 50 amp if your calculations determine that 40 is too little.
The way I understand the OP will be running 240v, right? That we put it at only 18.75 amps for the 4500 watt element with the 30A setup being fine. Just want to help make it clear. Maybe I missed something?
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Old 05-03-2013, 03:27 PM   #25
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Quote:
Originally Posted by kopper View Post
The way I understand the OP will be running 240v, right? That we put it at only 18.75 amps for the 4500 watt element with the 30A setup being fine. Just want to help make it clear. Maybe I missed something?
Good catch on my missed thinking and/or math. I'd still suggest you do a quick calculation. But, if your control panel is designed to handle the heating elements you are using and has 30 amp requirement, then you should be fine.
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Old 05-03-2013, 05:44 PM   #26
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Thanks guys.

Yes I'm basically building kals control panel so its definitely 30amps.

And yes id be using 240 volt.

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Old 06-12-2013, 01:57 AM   #27
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OK - how did it come out?

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Old 06-13-2013, 04:29 AM   #28
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Haven't had a chance to work on it. Got super busy at work and other life things.

Hopefully soon though.

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Old 06-13-2013, 08:23 PM   #29
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Am I the only one who thinks on the original photo (the panel with the 100A 2P breaker) is half full. Isn't there room for 4 standard size breakers rotated 180 deg? did I miss something?

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Old 06-14-2013, 11:59 PM   #30
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You missed the construction of the box. It's not designed for horizontal breakers.

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