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How can I get 277 Vac equipment ground-fault protection?

EDB, EGB, EJB - EPD circuit breakers are available in 15A, 20A, 30A, 40A and 50A configurations for use in NF panelboards. This design provides 30 milliampere ground fault pick-up levels per UL1053 at 277 Vac maximum. These circuit breakers are designed to protect equipment from ground fault damage. Each single pole EPD breaker requires two mounting spaces in the panelboard.

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