Liebert micro smart switch User Manual
DISCONTINUED
PRODUCT
DUAL INPUT POWER DISTRIBUTION
MICRO SMAR TSWITCH
USER MANUAL
200 VAC to 240 VAC
50/60 Hz
24 Amps
General Description
The Liebert Micro SmartSwitch (MSS) is a single Phase Dual Input rack mountable Power Distribution Unit (PDU) with a built in Automatic Transfer Switch.
When Input A falls below 168 VAC and Input B is valid, the output is automatically transferred to Input B. The output is transferred back to Input A when Input
A is valid and rises above 178 VAC. This high speed transfer rate ensures that
the transfer is transparent to the sensitive equipment.
The two sources are not required to be in phase. This is an effective solution that
uilds in redundancy and increases the AC power availability of connected
b
equipment. If the dual input power is fed through two independent AC sources,
then the system availability is increased and the dual input advantages are fully
used.
The Micro SmartSwitch provides 12 receptacles
power and may be rack mounted. There are four groups of three IEC-320 (10A)
receptacles, where each group is backed up by a 10A magnetic circuit breaker.
The MSS has two attached line cords that are terminated with NEMA L6-30
plugs with a 20A fuse for each. The total load for the MSS cannot exceed 24A of
AC load at 200-240 VAC. Also the load for each of the four groups cannot
exceed 10A or the internal breaker may trip or the fuse will blow. The load must
be balanced among the four segments such that the total current draw per section
does not exceed 10A and a total of 24A for all the four segments of the MSS.
This product provides line-to-line surge protection of 500 Joules.
that distribute redundant AC
Glossary of Symbols
Risk of Electrical Shock
Indicates Caution - followed by important instructions
!
Bonded to Ground
AC Voltage
On
I
Off
O
No user servicable parts inside
DISCONTINUED
PRO DUC T
About This Device
This guide serves as an outline to assist Qualified personnel with the installation
of the Liebert Micro SmartSwitch. The input voltage for this Micro SmartSwitch
unit is 200VAC to 240VAC.
This Micro SmartSwitch includes the following features:
• Mounts in 1U of rack space
• Provides 12 receptacles on 4 circuit breakers
• Protects against electrical line surges and spikes
This Micro SmartSwitch is UL and c-UL listed as Information Technology
uipment.
Eq
WARNING: There is a risk of personal injury from electrical shock
and hazardous energy levels. The installation of options and routine
!
maintenance and service of the product must be performed by individuals
who are knowledgeable about the procedures, precautions, and hazards
associated with AC power products (trained service technician).
To reduce the risk of electrical shock and
or servicing the Micro SmartSwitch:
• The Micro SmartSwitch must be disconnected from the product and
unplugged from the AC electrical outlet before servicing or repairing product.
• Do not overload the output of the Micro SmartSwitch. The total connected
should not exceed rated input power.
load
• Do not exceed the leakage current limit for the Micro SmartSwitch in your
system. See the “Earth Leakage Current” section later in this document for
limits.
Earth Leakage Current
To reduce the risk of electrical shock du
grounded (earth) connection is essential before connecting Micro SmartSwitch to
AC power. Observe the following limits when connecting the product to AC
power distribution devices.
For products that have attached AC power co
ing power, the total combined leakage current should not exceed 5 percent of the
rated input current for the device.
For products that have detachable AC power
current should not exceed 3.5mA.
Voltage Selection
On connected equipment that have voltage select switches, make sure that the
switch is set for the type of voltage you use (208/240 VAC).
/or equipment damage when installing
e to high leakage current, a reliable
rds directly connected to the build-
cords, the total combined leakage
DISCONTINUED
PRO DUC T
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS.
This manual contains important instructions that should be closely followed during installation and maintenance of this product.
This product is designed for Commercial/Industrial use only. It is not intended
for use with life support and other U. S. F
imum load must not exceed that shown on the rating label. See Limited Warranty.
DA designated “critical” devices. Max-
WARNING: Lethal voltages may be present within this unit even when it is
apparently not operating. Observe all cautions and warnings in this manual.
Failure to do so MAY result in serious injury.
This equipment or Micro SmartSwitch is designed for use on a properly
grounded (earthed), 208/240 VAC, 50Hz or 60Hz supply.
ELECTROMAGNETIC COMPATIBILITY- The Micro SmartSwitch complies
the limits for a CLASS B digital device, pursuant to part 15 of FCC rules.
with
These limits provide reasonable protection against harmful interference. If this
device is not installed and used in accordance with the instruction manual, it may
cause harmful interference to radio communications. Not operating this device in
accordance with these instructions may cause harmful interference, which the
user must correct at their own expense.
Operate the Micro SmartSwitch in an i
temperature range of 0°C to 50°C (32°F to +122°F). Install it in a clean environment, free from conductive contaminates, moisture, flammable liquids, gasses, or
corrosive substances.
Turn the Micro SmartSwitch off and isolate it from other equipment before
g. Use a soft cloth, never liquid or aerosol cleaners.
cleanin
Keep the vents free from dust accumulat
Never block or insert any object into the ventilation holes or other openings.
ndoor environment only in an ambient
ion that could restrict airflow.
DISCONTINUED
PRO DUC T
Loading...