IB01602046E
For more information visit: www.eaton.com
Instruction Booklet
Effective: July 2010
Page
11
2-Position Contactor Based
Non-Automatic Transfer Switch
Non-automatic transfer switch enclosures and all internal steel
mounting plates, such as the power panel mounting plate, go
through a pretreatment cleaning system prior to painting to
ensure a durable finish.
The standard non-automatic transfer switch enclosure is NEMA 1
Type for general use. However, a variety of enclosures are avail-
able to address almost any environmental circumstance (see
Table 3).
Table 3. Transfer Switch Equipment Enclosures
3.7 Standards
Eaton non-automatic transfer switch equipment, enclosed in any
of the enclosures listed in Table 3, is listed for application by UL
and ULC. In addition, Eaton non-automatic transfer switches are
listed in File E38116 by Underwriters Laboratories, Inc. under
Standard UL 1008. This standard covers requirements for auto-
matic and non-automatic transfer switches intended for use in
ordinary locations to provide lighting and power as follows:
a. In emergency systems, in accordance with articles 517
and 700 in the National Electrical Code, ANSI/ NFPA 70,
and the National Fire Protection Association No. 76A;
and/or
b. In standby systems, in accordance with article 702 of the
National Electrical Code; and/or
c. In legally required standby systems in accordance with
article 701 of the National Electrical Code.
Eaton non-automatic transfer switches are available to meet
NFPA 110 for emergency and standby power systems, and
NFPA 99 for health care facilities when ordered with the appro-
priate options.
Standard UL 1008 for automatic and non-automatic transfer
switches lists devices under the reexamination program which
only require a continual physical reexamination of the compo-
nents used in the product to ensure consistency with the origi-
nally submitted device. Follow-up testing is not required by UL
1008.
Section 4: Installation and Wiring
4.1 General
Eaton non-automatic transfer switches are factory wired and
tested. Installation requires solidly mounting the enclosed unit
and connecting power cables and auxiliary pilot circuits. Physi-
cal mounting procedures and power cable connections are cov-
ered in this section. All other required wiring or electrical
connection references are covered in a separate Customer Wiring
Booklet packaged with the non-automatic transfer switch.
Locate the wiring schematic, review it, and keep it readily avail-
able for reference purposes during installation and testing. Once
a non-automatic transfer switch is properly installed and wired, it
should be mechanically and electrically checked for proper instal-
lation and operation. The procedures for these initial mechanical
and electrical checks are outlined in Section 6 of this instruction
manual.
4.2 Mounting Location
Choose a location that offers a flat, rigid mounting surface capa-
ble of supporting the weight of the enclosed non-automatic
transfer switch equipment. For standard non-automatic transfer
switches, avoid locations that are moist, hot, or dusty. How-
ever, Eaton offers optional enclosure designs that can be used in
special environments. If there are any doubts as to a location’s
suitability, discuss them with your Eaton representative.
Check to make certain that there are no pipes, wires, or other
mounting hazards in the immediate mounting area that could cre-
ate a problem.
Carefully remove all packing material from the non-automatic
transfer switch at the mounting location. Even though an equip-
ment inspection should have been made when the equipment
was received, make another careful inspection of the enclosure
and the enclosed non-automatic transfer switch components as
the packing material is removed and the enclosure readied for
mounting. Be especially alert for distorted metal, loose wires, or
damaged components.
NEMA TYPE
DESIGN
PROTECTION
Open
Indoor
1
Indoor
Enclosed Equipment
3R
Outdoor
Rain, Ice Formation
12
Indoor
Dust, Dirt, and
Non-Corrosive Liquids
WARNING
BE CERTAIN THAT THE SOLID STEEL DOOR IS PROPERLY
INSTALLED BEFORE THE TRANSFER SWITCH EQUIPMENT IS PUT
INTO SERVICE. THE DOOR PROVIDES PROTECTION FROM DAN-
GEROUS VOLTAGES AT THE LINE AND LOAD TERMINALS WHEN
THE EQUIPMENT IS IN OPERATION. FAILURE TO DO SO COULD
RESULT IN PERSONAL INJURY OR DEATH.
