What Breakers are Compatible with Cutler-Hammer?
Eaton bought Cutler-Hammer in 1978 so all Eaton and Cutler-Hammer products are made the same and compatible.
Cutler-Hammer and Eaton breakers are readily available at Lowes or Home Depot stores. They also get sold at Eaton stores throughout the country and specialty electrical outlets. You should also note that there’s a possibility that you can swap out your Eaton or Cutler Hammer breaker with a Square D breaker.
Compatibility only applies if the model number of the Square D breaker gets listed as acceptable on the panel box.
Conclusion: Eaton and Square D Breakers are Compatible with Cutler-Hammer.