UL 98C:2017

$56.55

Outline of Investigation for Enclosed and Dead-Front Switches, 650 – 1000 Volts

Published By	Publication Date	Number of Pages
UL	2017-04-03	6

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Category: UL

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Description

1 Scope

1.1 These requirements cover individually enclosed air switches, rated 4000 A or less at 1000 V ac or dc or less, having all current-carrying parts enclosed, manually operable by means of external handles, and intended to be employed in accordance with the National Electrical Code.

1.2 This Outline is intended to be used with the Standard for Enclosed Switches, UL 98. Only the sections that are modified from UL 98 are included in this Outline, all other Sections apply as written in UL 98.

1.3 These requirements also cover deadfront switches that have all current-carrying parts enclosed when mounted in an enclosed panelboard, deadfront switchboard, or the like. These switches are manually operable by means of external handles and are intended to be employed in accordance with the National Electrical Code.

1.4 These requirements do not cover fusible switches or switches with horsepower or kilowatt ratings and therefore any related requirements of UL 98 do not apply.

Additional information