SWITCHES (WFXV)
PULLOUT SWITCHES, DETACHABLE TYPE
(WGEU)
USE AND INSTALLATION
This category covers switches having detachable pullout heads, with or
without fuseholders, for cartridge fuses. These switches may be enclosed or
nonenclosed.
Nonenclosed switches are intended for use in other assemblies, such as
panelboards, service equipment, or the like.
Enclosed pullout switches may contain meter sockets and/or neutral
assemblies and contain more than one independent switch without connection
between switches.
Some enclosed pullout switches incorporate neutrals that are factory
bonded to the enclosure. Such switches are marked ‘‘Suitable Only for Use
as Service Equipment.’’
Enclosed pullout switches marked for use as service equipment may also
be used to provide the main control and means of cutoff for a separately
derived system or for a second building.
Class CTL pullout switches have the physical size, configuration or other
means which, in conjunction with the physical means provided in a Class
CTL assembly, are designed to prevent the installation of more switch poles
than that number for which the assembly is designed and rated.
Class CTL pullout switches may be identified by the words ‘‘Class CTL’’
or ‘‘CTL’’ on the switch as part of the marking.
Enclosed pullout switches that are rain-tight or rainproof are marked
accordingly.
These pullout switches are intended for use with copper conductors
unless marked to indicate that certain terminals are suitable for use with
aluminum conductors. Such markings are independent of any marking on
the terminal connectors and appear on a wiring diagram or other readily
visible location.
Unless a switch is marked to indicate otherwise, the termination provisions
are based on the use of 60°C ampacities for wire sizes 14 – 1 AWG,
and 75°C ampacities for wire sizes 1/0 AWG and larger as specified in Table
310.16 of ANSI/NFPA 70, ‘‘National Electrical Code.’’ Termination provisions
are determined based on values provided in Table 310.16, with no
