How do I know what model breaker works with my Cutler-Hammer?

To know what model breaker works with your Cutler-Hammer panel, you must identify your specific panel family and check the approved list on the panel label, because Cutler-Hammer made two incompatible residential lines. First, open your panel door and look for a sticker or label on the inside of the door or on the side of the can that lists the model number and says approved breaker types. If it lists Type BR, Type BRD, Type C, or BD, you have a BR panel, which uses breakers that are one inch wide with a black handle and a notch, now sold as Eaton BR. If it lists Type CH, CHB, or CHP, you have a CH panel, which uses 3/4 inch wide breakers with a tan handle and a hook, now sold as Eaton CH. Second, match electrical ratings: look at the existing breaker for amperage like 15A or 20A, voltage, and whether it is single pole or double pole, and buy the same. Third, consider code requirements: many areas now require AFCI or GFCI breakers for bedrooms, kitchens, and other areas, so you may need Eaton BR or CH AFCI GFCI versions. Never force a BR into a CH panel. If the label is faded, take a photo of an existing breaker and the panel to an electrical supply house or Home Depot where staff can match it, or ask a licensed electrician to confirm.