Installation
Automatic Transfer Switch Owner’s Manual 13
Auxiliary Contact
See
Figure 3-4
. If desired, there is one normally-closed
Auxiliary Contact (A) on the transfer switch to operate
customer accessories, remote advisory lights, or remote
annunciator devices. A suitable power source must be
connected to the common terminal. If needed, an extra
auxiliary contact can be added.
Figure 3-4. Auxiliary Contact
The auxiliary contact is normally closed when the transfer
switch is in utility mode. The contacts will open when the
transfer switch is in the standby power mode.
NOTE: Auxiliary Contact is rated 10 amps at 125 or 250
volts AC, and 0.6 amps at 125 volts DC.
Fault Current Label
See
Figure 3-5
. A Fault Current Identification Label is
provided in the bag containing the unit Owner’s Manual and
transfer switch manual operating handle. The 2017 NEC
requires that the short-circuit current rating of the transfer
equipment, based on the type of overcurrent protective
device protecting the transfer equipment, be field marked on
the exterior of the transfer equipment. For NEC compliance,
verify the required short-circuit current rating of the transfer
switch before installation.The completed label provides the
local AHJ (Authority Having Jurisdiction) with the information
he or she may require during inspection.
Apply the label to the exterior of the transfer switch
enclosure. Use a pen to fill in the required information, and
then cover the label with the clear protective decal.
Figure 3-5. Fault Current Label
(000134a)
CAUTION
Equipment damage. Exceeding rated voltage and
current will damage the auxiliary contacts. Verify
that voltage and current are within specification
before energizing this equipment.
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