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How to identify your Circuit Breaker

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Don't Know Your Circuit Breaker Part Number?

Here's a helpful guide to use when identifying your circuit breaker. Remember, you can always call our knowledgable sales reps at 800-497-6255 for immediate assistence.

Do you want the exact same circuit breaker? Yes or No

For Replacement Circuit Breakers: Look at the Label

Look at the Circuit Breaker Label

If you are replacing a circuit breaker, you can usually find all the information you need to order your circuit breaker off of the label. Typically, the part number (Cat. #, Catalog Number, or P/N) is displayed on the top left hand side of the breaker, usually by the manufacturer logo. In most cases, this is NOT the style number or serial number - these numbers will not help us identfy your circuit breaker. Some older vintage, obsolete circuit breakers may not have catalog numbers on them. Also, some circuit breakers may have worn or illegible labels. See below for information on what to do in these cases.

If No Part Numbers are Available

If you've checked your circuit breaker and the other circuit breakers in the panel and still can't find a part number, all is not lost. Our technical sales team can most likely still identify your breaker with a suprisingly small amount of information. If you can, try to get the following details before you call - it will expedite your quote:

  • Digital Pictures (By far, the easiest. Email them to us.)
  • Manufacturer Names (breaker or panel, preferably both)
  • Circuit Breaker Dimensions (Height, Width and Depth)

For New Installations: Look at Existing Circuit Breakers

While you may not be trying to order the EXACT same circuit breaker, you can get valuable information from existing circuit breakers in your panelboard or switchboard. Here's what to do:

Look at Other Circuit Breakers in Your Panel

Find a Part Number off of a similar, existing circuit breaker (Can't find one? Click here.)

  • Search for that circuit breaker part number on our website
  • Go to the product page for your existing circuit breaker
  • Use the left filters to change the attributes you know about your breaker

Use our Circuit Breaker Filters

For example, Say you have a KA36200 circuit breaker in your panelboard, and you know that you need a 100 Amp breaker for the same board. Under the "Amperage" filter, choose "Other". The filter will expand to allow you to choose from all available amperages in the same frame circuit breaker. Pick "100" from the list, and you'll be taken to the page for the KA36100 - the circuit breaker you need.

This strategy works best for circuit breakers that are close in amperage - if you need any help or have any additional questions we always recommend consulting our knowledgable sales department. Contact us or call 800-497-6255 for help today.

If No Part Numbers are Available

If you've checked your circuit breaker and the other circuit breakers in the panel and still can't find a part number, all is not lost. Our technical sales team can most likely still identify your circuit breaker with a suprisingly small amount of information. If you can, try to get the following details before you call - it will expedite your quote:

  • Digital Pictures (By far, the easiest. Email them to us.)
  • Manufacturer Names (breaker or panel, preferably both)
  • Circuit Breaker Dimensions (Height, Width and Depth)

  Contact us if you need more assistance. We're here to help.