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What is an EH4/EHB4 and EH7/EHB7?

EH4/EHB4 is the designation given to 15-60 amp EH/EHB breakers, and EH7/EHB7 is the designation given to the 70-100 amp EH/EHB breakers.

The 70-100 amp breakers have the rejection feature to prevent breaker installation across from it in the panel.

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