Circuit breaker compatibility chart

Circuit breaker compatibility chart DEFAULT

Replacing circuit breakers in your electrical service panel but not sure which ones to use? Normally you would just go to the panel and look up the specified breakers the manufacturer has listed. Maybe you’re trying to save money or can’t find the part you’re looking for and now you’re looking for options. Here is the dirty truth about interchanging circuit breakers.


Specified, UL Classified / Interchangeable Circuit Breakers

Specified breakers mean the manufacturer has tested the breakers in the panel and listed them to be used in that panel. You have probably noticed “UL Classified” and interchangeable circuit breakers around the market. These are breakers that have been tested in panels that they are approved for, similar to manufacturer specified breakers. Essentially, they are a different brand from the panel manufacturer but are still in their electrical service panel.

There’s a little controversy about UL Classified and interchangeable breakers. Some manufacturers have no problem with Classified breakers while others do. Manufacturers like Square D warns against the use of Classified and interchangeable breakers. They site the National Electrical Code (NEC) Section 110-3(b), which states that using breakers not listed or labeled is a code violation. Their argument is for public safety drawing evidence from past accidents due to the use of Classified breakers in their panel. The images below are damages to a Square D load center from using a classified breaker.

Source: - Square D letter to Electrical Inspectors.


Square D insists that this is a code violation which will result in their warranty void. They went as far as to say that you may lose your license. However, Eaton and the Underwriters Laboratory (UL) would disagree.

Public safety is a factor, which is why a third party, like the UL, lists suitable manufacturer replacement breakers (UL Classified). These breakers meet UL and NEC code regulations. UL has stated that people must adhere to all manufacturer supplied instructions. Moreover, UL also stated that Classified breakers can be used for their approved panels. (Source: UL Marking and Application Guide Panelboards). On the note of warranty void, manufacturers cannot void their warranty if the replacement part has proven to be safe by a third-party, for instance UL (Magnusson-Moss Warranty Act).


Compatibility Chart

There are charts that show what circuit breakers are interchangeable. For instance, the chart below shows an example of a cross reference of Type CL 1″ breakers that could be interchangeable for panel installations. You can check under the panel column for compatible Eaton UL Classified breakers.

Eaton Type CL UL Classified Breakers



In short, the manufacturer’s specification is always a good first choice. Otherwise, just replace the same type of existing breakers in the box. Manufacturers would want to specify their own breakers for use in their panelboards for obvious financial reasons. However, remember you have options with UL Classified breakers like the chart above. Some electricians use Classified breakers for obvious reasons, whether for price, availability, or convenience. But which ever circuit breakers you go with, make sure to install them safely.


How to find out what breakers are compatible with my panel?

Match the letters

If the breaker has the same "Type" letter markings on it as are listed on the panelboard label, you're fine. Number suffixes on the type marking (such as QAF2 vs QAF and MP-AT2 vs MP-AT) are used to denote a revised type of breaker that is still compatible with the original and can be used in place of it, so they don't matter in your case.

10kAIC is fine

The Siemens/Murray line of breakers comes in three interrupting rating options -- 10kAIC, 22kAIC, and 65kAIC. The larger options are more costly due to extra internal equipment needed to break bigger arcs, and are only necessary in commercial work where larger services and feeders capable of higher fault currents are found.

In addition, in a main breaker panelboard such as yours, a breaker with a lower rating can be used because it receives a higher series rating by way of being "backed up" by the panelboard's heftier main breaker.

  1. Adopt a pet hickory nc
  2. Gtx 1660 super msrp
  3. Iphone 7 at boost mobile

what breakers are compatible with siemens

Your safest bets are Siemens QAF, QPF, QT, and QP. The most recommended way to know what breakers are compatible with Siemens, check your panelboard’s manufacturer’s manual.

But what if you no longer have it or the instructions are illegible? You can use the previous broken Siemens breaker as a reference when buying. You can also opt to request new documentation from the supplier.

Read on to know the exact reasons why these are the most practical routes to take.

Table of Contents

Why Should You Stick to the Official Documentation?

This is because there’s more than a handful of ways that you’ll end up with the wrong breaker otherwise. Is it risky if you go this route?

Unless you do modifications that raise the chances of overheating, probably not. However, would you be willing to put up with the constant worry that you’re using something faulty in your home’s electrical system?

Always remember that just because you’re able to get a lightbulb to turn by touching two wires together doesn’t mean they’re compatible. I’m going to stress it again: only use Siemens-compatible breakers.

It’s Best to Choose Circuit Breakers Made by Siemens


I said the safest bets are QP, QT, QPF, and QAF breakers because they’re manufactured by the brand itself. Did you know that Murray and Siemens are pretty much the same company? Their breakers even use the same parts, but they are not certified to be interchangeable.

Furthermore, I need to make it clear that many manufacturer’s manuals will only recommend products made by the brand for use as a Siemens main breaker. It’s also important for you to know beforehand that not all breakers made by the brand could be suitable for your panelboard.

You may notice that other brands are more lenient when it comes to their breakers’ interchangeability with other companies. Unfortunately, I wouldn’t say Siemens panelboards are just as manageable based on the documentations I’ve read through.

What About UL Classified Circuit Breakers?

UL classified breakers, especially those made by Eaton, are an exception to what I said. Why? They’re designed for interchangeability with Siemens breakers, simply put.

You can confirm the information by reading a Siemens breaker compatibility chart, but that’s entirely up to you. Sometimes, I refer to the Siemens circuit breaker compatibility chart prepared by Relectric sometimes when I’m verifying the information I need or can’t find the information proof required. However, I’d take official documentation over this any time.

A Siemens QP breaker compatibility chart or manual may say that their circuit breakers fit into other load centers made by other brands. General Switch, Westinghouse, Murray, Challenger, Arrow Hart, and General Electric serve as good examples of such brands. However, that doesn’t always mean that the breakers they produce are also compatible with Siemens panelboards.

Take the Time to Test Your Breaker


Even if you’re close to 100% certain that the breaker replacement you buy is compatible with the panel, I’d still suggest you test it first before using it. Check whether it fits the slot intended for it. Believe it or not, some subcontractors even cut breakers with a saw just to make them fit. While that might work, you’ll essentially be playing with fire, literally and figuratively, if you decide to do so.

That’s exactly why I prefer to know what circuit breaker is being placed in my panelboards. The service you hired may be making “adjustments” that could lead to overheating. I’m not saying it’s common practice, but I’m also not ruling out the possibility since I’ve encountered these issues both offline and online before.

For more tips on how to test the circuit breaker in your home, I recommend you check out this official video created by the brand:

It discusses troubleshooting mostly but there’s a good portion that explains how Siemens circuit breakers work and how you can test them, too.


To sum it up, you can rely on a number of Siemens circuit breakers cross reference sites online for knowledge, but, to me, they’re not as conclusive and veritable as anything recommended by the brand through its official manuals.

So if you’re going to ask me about which first step to take any time you need to change a breaker, it’s always going to be, “Get your hands on those handy manufacturers’ booklets.”

Hope you like this guide on what breakers are compatible with siemens? I’d love to hear your experiences in the comments.

Categories Fuses, Circuit Breakers & Safety SwitchesSours:
How To Tell What Type of Breaker you Have

Circuit Breaker Compatibility Chart

Circuit Breaker Compatibility Chart

Which electrical switches are interchangeable

There is no interchangeable switch. However, there are CLASSIFIED switches that are only suitable for replacing certain switches in certain panels. This information is provided by the manufacturer of the rated circuit breaker.

So can you use different brands of switches?

Brand: Always install the correct brand of switches in the control panel. Some switches are interchangeable, but many are not, although they look the same. Replacing one brand of switches with another can be dangerous, void the breakdown or control panel warranty, and result in an unsuccessful electrical inspection.

Second, which circuit breakers are GE compatible?

Siemens fits GE Siemens switches can be used in GE switch boxes and are generally known to be compatible. When using Siemens switches, be sure to observe the size and voltage requirements, as using the wrong switch can have dangerous consequences.

Are GE and Eaton switches interchangeable in this respect?

Simplified Circuit Breaker Inventory UL Certified Circuit Breakers are designed and tested so that they can be replaced both mechanically and electrically with circuit breakers from General Electric, Thomas & Betts, ITE / Siemens, Murray, CrouseHinds, and Square D.

Are the switches universal?

Contrary to the assumption that they are all the same and work in every control panel, the opposite happens. Circuit breakers can fit, but not properly. Unlike most electrical devices like switches and sockets, circuit breakers are very specific.

A two-pole switch with 20 amps and 40 amps?

There are two types of standard switches: unipolar and bipolar. Single pole switches are designed for 120 volts and 15 or 20 amps. In contrast, bipolar switches are generally rated 20 to 60 amps and provide large appliances such as electric dryers and rooms with 240 volts of electricity.

Are Square D and Siemens switches interchangeable?

Re: Do Siemens switches fit in a square D box?

Only square d qo switches are suitable during this panel period. Home line panels can accommodate other switches, but this should only be done in a temporary / emergency situation.

How do I know if a switch needs to be replaced?

Power Switch Warning Signs

How do I replace a circuit breaker?

To replace the switch:

Are the QP and BR switches interchangeable?

What kind of circuit breaker is used in households?

The most commonly used electrical circuit breakers for electrical connections are miniature circuit breakers (MCBs), RCCBs (RCCBs), and miniature circuit breakers (MCCBs).

Can you share a 2 pole switch?

Re: Two-pole switches for 2 single-pole circuits

How often should the circuit breakers be switched?

Molded case circuit breakers must be used at least once a year. Routine travel tests should be done every three to five years. Low voltage switchgear must be inspected and serviced every 1-3 years, depending on the service and operating conditions.

Are Eaton and Cutler Hammer crushers alike?

The CutlerHammer and Eaton product families are identical and compatible. The part number has not changed, only the Eaton name has been placed on the product. For more information on the Cutler Hammer brand click here Cutler Hammer brand.

Which breaker will replace Crouse?

Are GE and Cutler Hammer crushers interchangeable?

Not all so-called interchangeable switches are U.L. Registered for trade. Not all switches are interchangeable. There are many types of switches, including screw switches. As for plug-in switches, Square D QO and CutlerHammer CH and some others do not physically fit other panels.

What is a THQL switch?

thqp is a subtle switch. thql is a great switch. They both fit into the same panel. If you have room for a thick switch, you can use either a thick switch or a thin one.

What are the different types of Square D switches?

  • Best Selling 20 Amp Square D Homeline Single Pole Breaker.
  • Square D Homeline 20 Amp unipolar plug-on dual-function neutral circuit breakers (CAFCI and GFCI).
  • 20 Ampere Square D Homeline Single pole slip-on circuit breaker with arc combined neutral conductor.

What does THQL mean?

A circuit breaker.

Can I use a Square D switch in an Eaton panel?

Can I use a GE switch in a Murray panel?

GE Nylon switches can also work. There are no switches that are acceptable for use in a Murray panel. Murray’s panel itself is completely unacceptable.

Do GE breakers work?

Circuit Breaker Compatibility Chart


Breaker chart circuit compatibility

There is no such thing as an interchangeable circuit breaker. There are however CLASSIFIED breakers that are suitable only for replacement of certain breakers in certain panelboards. This information is provided by the classified breaker manufacturer.

Click to see full answer

Likewise, can you use different brand breakers?

Brand: Always install the correct brand of breakers in your breaker panel. While some breakers are interchangeable, many are not, even if they look the same. Replacing one brand of breaker with another can be dangerous, may void your breaker or panel warranty, and may cause you to fail an electrical inspection.

Subsequently, question is, what circuit breakers are compatible with GE? Siemens fits GESiemens breakers can be used in GE breaker boxes, and they are generally known to be compatible. Match the size and voltage requirements when using Siemens breakers, as using the wrong breakers can have dangerous results.

Additionally, are GE and Eaton breakers interchangeable?

Streamline Breaker InventoryUL Classified breakers are designed and tested to be both mechanically and electri- cally interchangeable with circuit breakers manufactured by General Electric, Thomas & Betts, ITE/Siemens, Murray, Crouse-Hinds, and Square D.

Are circuit breakers universal?

Contrary to the belief that they are all the same and will work in any circuit breaker panel, the fact is just the opposite. Circuit breakers may actually fit, but not properly. Unlike most electrical devices like switches and outlets, circuit breakers are brand specific.

Different Kinds of Electrical Breaker Types

(Especially for. оrg - BestWeapon. ru) She tried very hard, although she did not like when they cum in her mouth. But not today.

Similar news:

What do you mean. - she did not understand me. The same as you, these guys are unlikely to be there tonight, I looked at her. - Right.

5992 5993 5994 5995 5996