WebNEMA PB2 – Dead Front Distribution Switchboards NEMA KS 1 – Enclosed and Miscellaneous Distribution Equipment Switches (600 Volts Maximum) UL 489 – Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures UL-891 – Dead Front Switchboards Submittals Shop Drawings WebNote: ABB switchboards are constructed to this standard as to enclosure, busing, wiring and clearances. Only switchboards or switchboard sections containing all UL Listed …
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