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C37.04-1999ieee standard rating structure for ac high-voltage circuit breakers rated on a symmetrical current basis. Relectric new and obsolete circuit breakers, motor control, busway, switchgear, electric supply, motor square dfederal pacificsiemens itegeneral electric and morefuses.
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For medium- and high-voltage circuit breakers. English (1.5mb pdf) francais (1.3mb pdf) deutsch (1.5mb pdf) espanol (1.3mb pdf) svenska (1.3mb pdf.
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