Specifications

52 Distribution Products Catalog CA08101001E—October 2010 www.eaton.com
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16.4
Tr a n s f er Switches
Magnum-Based Designs
Magnum Bypass Isolation Front View
Front Access Option 54A is Available on All Magnum Designs
Standards and Certifications
Eaton transfer switch
equipment is listed for
application by UL and CSA.
In addition, Eaton ATSs are
listed in
File E38116 by
Underwriters Laboratories
under Standard UL 1008. This
standard covers requirements
for ATSs intended for use in
ordinary locations to provide
for lighting and power as
follows:
A. In emergency systems,
in accordance with
Articles 517 and 700 in
the National Electrical
Code (NEC), American
National Standards
Institute/National Fire
Protection Association
(ANSI/NFPA) 70 and the
NFPA No. 76A and/or
B. In standby systems, in
accordance with Article
702 of the NEC and/or
C. In legally required standby
systems in accordance
with Article 701 of the
NEC. Eaton ATSs are
available to meet NFPA
110 for emergency and
standby power systems,
and NFPA 99 for health-
care facilities when
ordered with the
appropriate options.
Since Eaton ATSs utilize
specially designed
switches and/or
switching devices as the
main power switching
contacts, these devices
must also be listed under
the additional UL
Standard 1066. UL
utilizes two basic types
of listing programs:
a. Label Service, and
b. Re-examination.
UL 1066 employs a
label service listing
program that requires
an extensive follow-
up testing program
for listed devices.
Standard UL 1008 for
ATSs lists devices
under the re-
examination program
that only requires a
continual physical re-
examination of the
components used in
the product to ensure
consistency with the
originally submitted
device. Follow-up
testing IS NOT
required by UL 1008.
Representative
production samples
of switches and
switching devices
used in Eaton ATSs
are subjected to a
complete test
program identical to
the originally
submitted devices on
an ongoing periodic
basis per UL 1066. The
frequency
of such a
re-submittal can be as
often as every quarter
for a low ampere
device.
Note: IBC seismic qualified.