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Chaf vs braf breakers

Would I be able to replace cutler hammer chaf 20 amp circuit breaker with a braf 20 amp cutler hammer breaker? Back looks different.

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Hi Will,

I am an electrician and can help you with this problem.

The panel should have a label that provides the catalog number of the panel. Many labels also detail all the breaker types that the panel has been tested with by UL, FM or other recognized testing laboratory. It is a violation of the electrical code to install any breaker into a panel that it was not designed to accept - even it it fits or can be "made" to fit. This means if it is not listed as an acceptable breaker, it must not be introduced to the panel.

The BR20 AF and CH20 AF are both "Combination Arc Fault Circuit Breakers". This means either device is capable of interrupting current flow when either: (1) an over-current condition exists, or (2) when an arc fault is detected regardless of load.

The fronts look very different:


chaf vs braf breakers - 11_15_2012_2_26_33_am.jpg
The BR20 AF circuit breaker above.



The CH20 AF circuit breaker above.

These breakers are NOT interchangeable. The CH series has fully exposed clips to engage the relatively flat (or flush) powered buss bar of the panel, while the BR series has a slot in the body that accepts a thin (blade-like), raised powered buss tab of a completely different style panel.

You should replace the breaker only with a like type, arc fault breaker. A similar looking, ground fault breaker is NOT a replacement for this breaker.

I hope this helps and good luck!

Posted on Nov 15, 2012

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Posted on Jan 02, 2017

SOURCE: Can a Cutler Hammer 2 pole 100 amp CH series

I answer questions for free
I specialize and timers and electrical devices
Looking up your breaker at Eaton, I found the chart that shows below:
Other than the chart, I do not know the specifics of your breaker.
You can add a comment, and I can help you with your wiring project.
Another good source of information about specifics are your local Graybar electric supply house, or any local supplier that specializes in electric wiring.
Having a local electrician stop by and look at your project for a fee might be a good investment long term because that person knows local codes and restrictions.

http://www.eaton.com/EatonCom/Markets/Electrical/Products/ResidentialProducts/CircuitBreakers/CHStyle34-inchBreakers/index.htm?ssSourceNodeId=4522&ssSourceSiteId=EatonCom

d548e07.jpg
The #1 Data Table from manual shows CU/AL which is copper/aluminum
2/0 wire fits CH145 CH245 CH150S breakers

See the manual
http://waterheatertimer.org/pdf/SA00400006E.pdf

Posted on Nov 02, 2010

  • 66 Answers

SOURCE: 20 AMP Cutler Hammer CH GFI wont fit in the breaker box

It will fit, the extra bump out on the back makes it a bit harder to hook the back locking tab before you push it on the bussing. Also, make sure no wires are in the way obstructing the bump out since it hangs out further than the standard breakers. The most common problem is the bump out making it hard to hook the locking tab onto the outer rail. Make sure the breaker is in the off position, then try holding it more flat as you insert it keeping it close to the bussing. This will help keep the extra bump out from obstructing the locking tab from hooking the back rail. Once it's hooked on the back rail you can push it on the bussing like normal.

Posted on Oct 10, 2009

  • 760 Answers

SOURCE: I have a Murray panel and Bryant circuit breakers.

It used to be you could never install more than 42 circuit breakers in a panel. If you have that many spaces you cannot install "twin" breakers in the panel. There is a rejection feature for this. Some panels will have a portion that allows twins in part of tha panel, but not all locations so you cannot exceed 42 breakers. You can sometimes tell by the legend that willshow a space divided on some positions and others not. There are many different brands that will "fit" into your panel (GE,Bryant,Murry,Arrrow Hart, Crouse Hinds, Siemens), but only use breakers listed to be used in your panel, or you will not have the protection intended. If it's 40 years old maybe it's time for an upgrade. Be careful in that panel and be aware of arc fault protection when working on engergized equipment.

Posted on Jun 30, 2010

aquaman987
  • 927 Answers

SOURCE: I was installing an extra

If the ground fault breaker tripped, I would try troubleshooting the other connections on the new outlet. To my knowledge, there are no special outlets required. Try redoing the other connections. The breaker is sensing a small amount of current from the hot wire(s) to the ground wire.
Gary

Posted on Jan 31, 2011

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It will fit, the extra bump out on the back makes it a bit harder to hook the back locking tab before you push it on the bussing. Also, make sure no wires are in the way obstructing the bump out since it hangs out further than the standard breakers. The most common problem is the bump out making it hard to hook the locking tab onto the outer rail. Make sure the breaker is in the off position, then try holding it more flat as you insert it keeping it close to the bussing. This will help keep the extra bump out from obstructing the locking tab from hooking the back rail. Once it's hooked on the back rail you can push it on the bussing like normal.

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