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What are the advantages of JDA36150 or HDA36150 over KA36150?

What are the advantages of J Frame and H Frame breaker over KA Frame breakers? 

Product Line:
Circuit Breaker

J and H Frame Breaker

Powerpact H- and J- frame breakers are the new style of thermal magnetic circuit breakers and will replace KA, KH, and KC breakers - they offer field-installable accessories, interrupting ratings as high as 100kA at 480V, common footprints, mounting holes, and handle operators to standardize panel layouts from 15A to 250A.

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