Selection of Switch Disconnectors and Main Disconnect Switches according NFPA79
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Dirk Meyer explains the difference between Feeder and branch circuits. The usage of cam switches, UL 489, molded case switch, non fused disconnect switches and the selection of the right circuit breaker for north america.
Dirk Meyer explains the difference between Feeder and branch circuits. The usage of cam switches, UL 489, molded case switch, non fused disconnect switches and the selection of the right circuit breaker for north america.
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