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Instructional Booklet
Page 4
Effective: March 2014
Figure 4. An RLC1 200 A Standard ATS.
Figure 5. An RLC1 200 A SE ATS.
The benefits of the SE configuration are:
• Combined service disconnect and over-current protection in the
• Fewer components and power connections reduce maintenance
1.2.3 Optional Load Shed
Four sets of contacts are available and can be used to control
large connected loads on the generator (i.e. air conditioners, hot
tubs, etc.)
1.3 Transfer Switch Catalog Number Identification
ATS equipment catalog numbers provide a significant amount of
relevant information pertaining to a specific piece of equipment.
The Catalog Number Identification Table (see Table 1) provides
the required interpretation information. An example is offered to
initially simplify the process.
Example: Catalog Number (circled numbers correspond to position
headings in Table 1).
The catalog number RLCMSXJ20100WRU describes an ATS.
The intelligence represented by the control panel is microproces-
sor logic. The frame is for 100A service, and the switch is a 2-
pole, fixed mount contactor. The continuous current rating of this
equipment is 100A and applicable at 240 Vac, 60 Hz. The ATS
equipment is enclosed in a NEMA 3R enclosure and listed for UL
applications.
1.4 Environmental and Operational Conditions
Normally, an ATS is applied indoors in an electrical equipment
room. It can also be used for normal outdoor applications (with a
NEMA 3R enclosure) where the equipment is subject to falling
rain, freezing temperatures, and 95% humidity (non-condensing).
The ambient temperature range for operation is between -20 and
70°C (-4 and 158°F).
1.5 Glossary
With respect to their use within this document and as they relate
to transfer switch and controller operation, the following terminol-
ogy is defined.
Available
A source is defined as "available" when it is within its undervolt-
age/underfrequency/overfrequency setpoint ranges for the nomi-
nal voltage and frequency setting.
Connected
Connected is defined as when the input is shorted by an external
contact or connection.
Failed or Fails
A source is defined as "failed" when it is outside of the applicable
voltage and frequency setpoint ranges for the nominal voltage and
frequency setting for a time exceeding 0.5 seconds after the time
delay emergency fail (TDEF) time delays expires.
Failsafe
Failsafe is a feature that prevents disconnection from the only
available power source and also forces a transfer or re-transfer
operation to the only available power source.
For more information visit: www.eaton.com
O & M Manual for the RLC1
ATS reduces the overall equipment and installation costs.
requirements.
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2
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RL
C
1
C 2
Automatic Transfer Switch
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X 2 0100 W R U
IB01602016E
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