Okay, a cracked main breaker that's arcing is a serious fire hazard. Shutting it off and leaving it off until you can get it replaced is absolutely the right move. Using a used breaker from eBay is generally NOT a good idea, because you don't know its history and could potentially be getting a compromised part.Here's what you need to do, and some considerations

1. Immediate Safety:
Leave it OFF

As you're doing. Do NOT attempt to operate it further. Arcing is a sign of high resistance and significant heat generation.

Fire Extinguisher

Make sure you have a working fire extinguisher (ABC rated) readily accessible.

Alert Family

Inform everyone in the household about the situation and the importance of not touching the panel.

2. Get a Qualified Electrician IN PERSON, Immediately This is NOT a DIY Situation

Dealing with a main breaker replacement is dangerous and potentially illegal (depending on local codes). You need a licensed electrician who is experienced with panel work.

Explain the Situation

Clearly explain the arcing, the model number (TQAL-AC21100), and the cracked condition to the electrician.

Let the Electrician Diagnose

The electrician can properly assess the condition of the breaker, the bus bars in the panel where the breaker connects, and the overall health of the panel. Sometimes there is damage to the panel itself.

Get Options

The electrician can explain your options, which may include:

Finding a compatible replacement breaker

There are sometimes compatible breakers that are not direct replacements but will work.

Replacing the entire panel

Depending on the age and condition of your panel, and if the bus bars are damaged, the electrician might recommend a full panel replacement. This is often the safest and most reliable long-term solution, especially if your panel is old or has other issues.

Using a NEW replacement

Sometimes the electrician can find a source for new breakers that you haven't been able to locate online.

3. Why Finding a Direct Replacement Is Difficult (and Considerations)



Older Breakers

The TQAL series is an older GE design. Manufacturers often discontinue specific models as technology advances and safety standards evolve.

Safety Standards

Breaker designs are constantly being improved to meet updated safety requirements (e.g., arc fault protection, tamper resistance).

Used Breakers - BIG Risk

Buying a used breaker from eBay or similar sources is generally NOT recommended for these critical safety devices. You don't know its history, whether it has been overloaded, or if it has internal damage. It's a false economy that could have disastrous consequences.

4. What the Electrician Will Look For



Bus Bar Damage

The electrician will carefully inspect the bus bars in the panel where the breaker connects. Arcing can damage the bus bars, which would require repair or replacement.

Panel Age and Condition

The overall condition of the panel will be assessed. Older panels may have corrosion, loose connections, or other issues that make replacement the best option.

Code Compliance

The electrician will ensure that any replacement meets current electrical codes.

5. Don't Delay

This is a high-priority situation. The arcing is a clear indication of a dangerous problem. Get an electrician out to your home as soon as possible. A new house is more expensive than a panel replacement. Flag for review