Product Manual

TP-6946 3/1610 Section 1 Product Description
1.2 Overcurrent Protection
Model KEP service entrance rated transfer switches
have integral overcurrent protection supplied on the
utility source as standard. Optional integral overcurrent
protection may also be selected on the generator
source. An upstream overcurrent protection device is
required on the generator source if the integral
overcurrent protection option is not specified on the
generator side of the ATS.
The type of overcurrent protection varies with ATS
amperage size and optional features specified.
Transfer switches rated 100 A through 200 A use
nonadjustable thermal-magnetic type trip units.
Transfer switches rated 250 A through 4000 A use
adjustable electronic type with long time or
instantaneous trip unit elements with optional ground
fault protection elements.
Refer to Section 1.4, Model Designation, for the types of
integral overcurrent protection that are available for the
transfer switch.
See Sections 2.4 and 6.1.2 for more information on
overcurrent protection.
1.3 Nameplate
A nameplate attached to the controller cover on the
inside of the enclosure door includes a model
designation, a serial number, ratings, and other
information about the transfer switch. See Figure 1 -3.
The serial number is also shown on a label inside the
transfer switch enclosure.
Copy the model designation, serial number, and
accessory information from the nameplate to the spaces
provided in the Product Identification Information
section inside the front cover of this manual for use when
requesting service or parts.
GM21291
Figure 1-3 Typical Transfer Switch Nameplate