Question about ABB S272-k16 2-pole Miniature Circuit Breaker

1 Answer

Backfeed Miniature Breakers with Solar?

I am installing photovoltaic systems. However, there are some households with cramped panelboards. I need to know if it is possible to backfeed power with miniature circuit breakers.

If so, which breakers can I use? Any double pole that doesn't specify line or load?

Some help would be great.

Thank you,

GC

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 20 Answers

I'm not up to date on PV systems so i will answer what i can about your question. The NEC applies to these installations so i hope you are familiar.

If the dc-ac inverter puts out 2 phase power then yes any two pole breaker rated for the amperage you are putting out would be fine. If the inverter puts out 120 then any single pole breaker will work.

That i know of, there are no 2 pole miniature or two handle breakers. There are breakers with two handles on them but they are tied to the same phase. the only thing i can think you may do would be to put a two handle single pole breaker in place of a regular breaker and then the one below it also. Then hook one leg off your inverter to one of the handles on the top breaker and the other leg to the bottom breaker.

Breakers do not have a line and load per say. The screw where wires are hoooked to is the load side of the automatic trip in the breaker however. The line would be where the breaker hooks to the bus bar but you can't really hook to that anyhow.

I would ensure what you do is up to code. There are safety issues involved. i assume you know your job though so i will leave it at that :) Hope this helped, write back if you feel i misunderstood.

Posted on Apr 05, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Electrolux EI30IF40LS induction oven. It has started to beep ERR F68, but only when my solar panels are generating any voltage/current.


Did you reset the breaker to the oven when you switched over to batteries? If not turn it off wait a few mins. then turn it back this should work. Sometimes the control panel needs to reset its self.

Apr 16, 2015 | Solar Electrical Supplies

1 Answer

Would like to know more about the solar panels discussed and shown on 2nd October 2014 at 05:15+


Solar panels are typically rated at .3 volts per cell. These cells are connected in series until they add up to 12 volts,24 volts or 36 volts depending on the solar system. The more cells you have the higher the charge rate of the batteries connected to the system. The DC voltage from the cells are used to charge the batteries then the voltage from the batteries is used to drive a DC to AC- convertor which is the power used by your home. The more cells connected the quicker it will charge the batteries and the more batteries connected the more power the solar system can provide.

Oct 04, 2014 | Solar 200 Amp Murray Mda 2200 Main Circuit...

1 Answer

Can circuit breakers from different manufactures be installed in a panel


I wouldn't do that. Generally breakers are specific to the brand of panelboard you have. It can be as simple as being the difference between a plug-in breaker and a bolt-on breaker but it can be as complicated as putting in a different kind making it no longer UL certified. The UL certification applies to the specific brand of panel board with the specific cover that comes with it and the guaruntee of only same brand circuit breakers in it. Are you having a hard time finding the same brand of breakers or were you considering it because of cost?

Mar 18, 2013 | Square D Electrical Supplies

1 Answer

My curcuit breacker is not functioning


Hi,

Welcome to fixya.com. In order to help you, we will need more information...
What kind of breaker and where is it at or in?
If it's in a panelboard in your house, replace it.

Thanks,

Handie Andie

Jun 06, 2011 | Electrical Supplies

1 Answer

I bought a eaton 20 ampsingle pole w/gfp, will it work in my g.e. breaker box?gfcb120cs


The new Eaton Cutler Hammer UL series circuit breakers are made to be interchangeable with panelboards from different manufacturers. If it is a UL series, the answer is yes.

Handy Andie

Mar 20, 2011 | Eaton Corporation GFCB120 GFI Circuit...

1 Answer

I am building an off grid cabin but will need to meet code providing all electrical components as per the latest NEC. I will be using a 4100 watt generator for my initial power source but plan on...


I think he cost of the panel and breakers would be the cheapest thing on your list. Your 4100 watt genny is tiny for a whole house, and if you are planning on a solar set up, you will need to convert to dc, so, I take it your 4100 genny is used to charge the battery bank? Then the panel will not need to be anything but a small disconnect for the genny, basically one of those things that prevents the current from flowing back into the source, which you don't have. I would talk to the building dept., they may not want to take liability, and make you get a contractor to figure something out. All your appliances, and lights will be 12 volt, most motors are 12 volt anyway, they are just transformed to 12 volt from 110 current, and I don't think you will need breakers for 12 volt stuff. You could look at some camper supplies, boat stuff, they all run 12 volt appliances, and lights.

Feb 12, 2010 | Your One Source Homeline Load Center, 200...

3 Answers

200AMP Breaker trips same time every night


Something doesn't sound right here. You indicate 2 200Amp breakers. With a single service entering the house, this is not possible. The "sub-panel" to the pool house is more likely a 100Amp setup, yes? If not, you have a bad setup and it should be corrected. I would suspect that you are attempting to pull too much current to the pool and that is what is tripping the breaker. Also, these breakers should not be run over about 80% of their capacity for the long haul. If they are, they tend to age and get either real sensitive causing tripping when it shouldn't or you can run 500Amps through it and it won't trip.

My suggestion is to revisit the setup. If the pool house is fed from the main panel, make sure that the breaker for it is not 200Amp. Second, try disabling the pool house breaker to see if that is the source of the problem and look more closely there.

Keep us posted.

Dan

Jun 29, 2009 | Electrical Supplies

1 Answer

Invertor connections to protect from utilty power backfeed


Inverters normaly have inbuilt protection built into them check for reset button/switch.

Jun 19, 2009 | ABB S272-k16 2-pole Miniature Circuit...

1 Answer

Question: how to...


What you need is called an aquastat. good luck

Jan 16, 2009 | Electrical Supplies

Not finding what you are looking for?
ABB S272-k16 2-pole Miniature Circuit Breaker Logo

430 people viewed this question

Ask a Question

Usually answered in minutes!

Top ABB Electrical Supplies Experts

Steve

Level 3 Expert

3287 Answers

ken skalski

Level 2 Expert

150 Answers

Gene Haynes

Level 3 Expert

5080 Answers

Are you an ABB Electrical Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...