Operation Manual

Smart-UPS™ RT
Uninterruptible Power Supply

SRTG15KXLI
SRTG20KXLI
Tower/Rack-Mount

1 Smart-UPS RT SRTG15K/20K Tower/Rack-Mount

Important Safety Instructions
Read the instructions carefully and look at the equipment to become familiar with the device before trying to install,
operate, service or maintain it. The following special messages may appear throughout this document or on the
equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.

The addition of this symbol to either a “Danger” or “Warning” safety label indicates that
an electrical hazard exists which will result in personal injury if the instructions are not
followed.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.

DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE
NOTICE is used to address practices not related to physical injury.

Product Handling Guidelines

Safety and General Information
Inspect the package contents upon receipt. Notify the carrier and dealer if there is any damage.
• Changes and modifications to this unit not expressly approved by APC by Schneider Electric could void the
warranty.
• This unit is intended only for indoor use in a controlled environment.
• Do not operate this unit in direct sunlight, in contact with fluids, or where there is excessive dust or humidity.
• Be sure the air vents on this unit are not blocked. Allow adequate space for proper ventilation.
• For a UPS with a factory installed power cord, connect the UPS power cable directly to a wall outlet. Do not
use surge protectors or extension cords.
• The battery typically lasts for two to five years. Environmental factors impact battery life. Elevated ambient
temperatures, poor quality utility power, causing frequent short duration discharges will shorten battery life.
• Up to 4 external battery packs (XLBP) can be connected to the UPS in parallel. The number of external
battery packs connected can be set using the LCD display.
Note: For each XLBP added, increased recharge time will be required.
• The equipment is heavy. Always practice safe lifting techniques adequate for the weight of the equipment.
• The batteries are heavy. Remove the batteries before installing the UPS and external battery packs (XLBPs),
in a rack.
• Always install XLBPs at the bottom in rack-mount configurations. The UPS must be installed above the
XLBPs.
• Always install peripheral equipment above the UPS in rack-mount configurations.
• Additional safety information can be found in the Safety Guide supplied with this unit.
• Battery breaker must be turned off when the UPS is not operating for a long time.

Deenergizing safety

The UPS contains internal batteries and may present a shock hazard even when disconnected from the branch circuit
(mains). The AC output connectors may be energized by remote or automatic control at any time. Before installing or
servicing the equipment check that the:
• Input wall circuit breaker is in the OFF position.
• Internal UPS batteries are removed.
• XLBP battery modules are disconnected.

Electrical safety

• For models with a hardwired input, the connection to the branch circuit (mains) must be performed by a
qualified electrician.
• 230 V models only: In order to maintain compliance with the EMC directive for products sold in Europe,
output cords attached to the UPS must not exceed 10 meters in length.
• The protective earth conductor for the UPS carries the leakage current from the load devices (computer
equipment). An insulated ground conductor is to be installed as part of the branch circuit that supplies the
input power to the UPS. The conductor must have the same size and insulation material as the grounded and
ungrounded branch circuit supply conductors. The conductor will typically be green and with or without a
yellow stripe.
• The UPS input ground conductor must be properly bonded to protective earth at the service panel.
• If the UPS input power is supplied by a separately derived system, the ground conductor must be properly
bonded at the supply transformer or motor generator set.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 4

Battery safety

CAUTION
RISK OF HYDROGEN SULPHIDE GAS AND EXCESSIVE SMOKE
• Replace the battery at least every 5 years or at the end of its service life, whichever is earlier.
• Replace the battery immediately when the UPS indicates battery replacement is necessary.
• Replace batteries with the same number and type of batteries as originally installed in the equipment.
• Replace the battery immediately when the UPS indicates a battery over-temperature condition, or
when there is evidence of electrolyte leakage. Power off the UPS, unplug it from the AC input, and
disconnect the batteries. Do not operate the UPS until the batteries have been replaced.
• *Replace all battery modules (including the modules in External Battery Packs) which are older than
one year, when installing additional battery packs or replacing the battery module(s).
Failure to follow these instructions can result in minor or moderate injury and equipment damage.
* Contact APC by Schneider Electric Customer Support to determine the age of the installed battery modules.
• Before replacing batteries, remove conductive jewelry such as chains, wrist watches, and rings. High energy
through conductive materials could cause severe burns.
• Do not dispose of battery or batteries in a fire. The batteries may explode.
• Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes, and may be toxic.
• Servicing of user replaceable batteries should to be performed or supervised by personnel knowledgeable
about batteries and required precautions.
• A battery can present a risk of electric shock and burns by high short-circuit current.
• Failed batteries can reach temperatures that exceed the burn thresholds for touchable surfaces.

Hardwire safety

• Verify that all branch circuit (mains) and low voltage (control) circuits are deenergized, and locked out before
installing cables or making connections, whether in the junction box or to the UPS.
• Wiring by a qualified electrician is required.
• Check national and local codes before wiring.
• Strain relief is required for all hardwiring (not supplied). Snap in type strain reliefs are recommended.
• All openings that allow access to UPS hardwire terminals must be covered. Failure to do so may result in
personal injury or equipment damage.
• Select wire size and connectors according to national and local codes.

General information

• The model and serial numbers are located on a small, rear panel label.
• Always recycle used batteries.
• Recycle the package materials or save them for reuse.

Radio frequency warning

This UPS is a category C3 product as per IEC 62040-2, meant for commercial and industrial application in the second
environment installation restrictions or additional measures may be needed to prevent disturbances.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 5

Product Description
The Smart-UPS™ On-Line SRTG is a high performance uninterruptible power supply (UPS). The UPS helps
provide protection for electronic equipment from utility power blackouts, brownouts, sags, surges, small utility
power fluctuations and large disturbances. The UPS also provides battery backup power for connected equipment
until utility power returns to normal levels or the batteries are completely discharged. This user manual is available
on the APC by Schneider Electric Web site, www.apc.com.

Specifications
For additional specifications refer to the APC by Schneider Electric Web site, www.apc.com.

Environmental

Operating 0 to 40 °C (32 to 104 °F)

Temperature
Storage -15 to 45 °C (5 to 113 °F)
0 - 3,000 m (0 - 10,000 ft)
0 - 1,000 m no derating;
Operating
Maximum Elevation 1,000 to 3,000 m,
power reduction of 1%/100 m
Storage 0 to 15,000 m (0 to 50,000 ft)
Humidity 0% to 95% relative humidity, non-condensing
International Protection Code IP20
Note: Charge the battery modules every six months during storage.
Environmental factors impact battery life. Elevated ambient temperatures, high humidity, poor quality mains power, causing
frequent short duration discharges will shorten battery life.

Physical

The UPS is heavy. Follow all lifting guidelines.

SRTG15KXLI / SRTG20KXLI
Unit weight without packaging 142.5 kg
Unit weight with packaging 157.2 kg
Unit dimensions without packaging Height x Width x Depth 306 x 440 x 700 mm(12.0 x 17.3 x 27.6 in.)
Unit dimensions with packaging Height x Width x Depth 535 x 590 x 790 mm (21.1 x 23.2 x 31.1 in.)
The model and serial numbers are on a small label located on the rear panel.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 6

Battery

UPS model SRTG15KXLI / SRTG20KXLI

XLBP model SRTG192XLBP2
Replacement battery module
This UPS has replaceable battery modules.
Refer to the appropriate replacement battery user manual for
APCRBC172
installation instructions.
Contact your dealer or go to the APC by Schneider Electric Web
site, www.apc.com. for information on replacement batteries.
Battery voltage ±192 VDC
Ah rating 9 Ah
Battery type Sealed Maintenance Free Valve Regulated Lead Acid
Max. number of battery pack 4 battery packs excluding the one supplied with UPS
XLBP cable length 0.64 m

UPS model SRTG15KXLI / SRTG20KXLI

Number of batteries 1 - 5 (including the one supplied with UPS)
Ah rating 9 Ah
charger current* 1.8 - 5 A
Max. charger current 5A
* refers to Icharge = 0.2 × (AH for each battery pack ) × (No. of battery packs)

UPS XLBP RBC Parallel Kit Rail Kit

SRTG15KXLI SRTGRK1 for UPS Power Module
SRTG192XLBP2 APCRBC172 SRTGPK01
SRTG20KXLI SRTGRK2 for Battery Pack

Electrical

Models Rating
SRTG15KXLI 15 kVA / 15 kW
SRTG20KXLI 20 kVA / 20 kW
Output
Output Frequency 50/60 Hz ± 4 Hz
Phase to neutral : 220/230/240 VAC (*1:1 & *3:1 )
Nominal Output Voltage
Phase to phase : 380/400/415 VAC (*3:3 )
Input
Input Frequency 38 to 72 Hz
Phase to neutral : 220/230/240 VAC (1:1)
Nominal Input Voltage
Phase to phase : 380/400/415 VAC (3:1 & 3:3 )
*1:1: 1 phase input / 1 phase output
*3:1: 3 phase input / 1 phase output
*3:3: 3 phase input / 3 phase output
Hereinafter referred to as “1:1”, “3:1” and “3:3” respectively.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 7

Product Overview
❶ Front bezel
❷ LCD module

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 8

Rear panel features
Note: Refer to the table “Key to identify rear panel features” that provides a key to the callout numbers for the rear panel
graphics depicted in this manual.
This picture is for reference only. The physical object may be different.

❷❹ ❺ ⓫ ❽ ❾ ❼

❻
❶
❸

⓭ ⓬ ⓯ ⓮ ⓮ ⓰ ⓯

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 9

Key to identify rear panel features
❶ EPO terminal The Emergency Power Off (EPO) terminal allows the user to connect the UPS to a central
EPO system.
❷ MBS terminal Maintenance bypass signal. Connect MBS cable to UPS before maintenance switch turned
on. Pull out the MBS terminal when necessary to maintain the UPS.
❸ BAT_T terminal Battery temperature sensor.
Connect the battery pack temperature sensor cable between ❸ and ⓭.
❹ RS232 port The serial com port is used to communicate with the UPS. Use only interface kits supplied
or approved by APC by Schneider Electric. Any other serial interface cable will be
incompatible with the UPS connector.
Note: Remote firmware upgrade facility for this UPS model in not available, user needs to
use RS232 port for firmware upgrade.
❺ USB port Communication interface only.
❻ Parallel Port Parallel communication port.
❼ Input/Output hardwire Remove the cover to connect input and output wires to the hardwire terminal blocks.
terminals
❽ Output socket with Connect electronic devices to these outlets.
circuit breaker.
❾ Battery Connector External battery connector.
❿ Smart Slot The Smart Slot can be used to connect optional management accessories.
⓫ Ground Terminal Connect to ground.
⓬ Battery breaker Connects or disconnects batteries.
⓭ BAT_T Battery temperature sensor.
⓮ Battery connector Enables connection of battery pack to UPS or connection of additional battery packs.
⓯ Ground Terminal Connect to ground.
⓰ Battery Fuse 2 nos. of 100 A / 500 VDC fuse.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 10

Wiring Specifications
CAUTION
RISK OF ELECTRIC SHOCK
• Adhere to all national and local electrical codes.
• Wiring should be performed by a qualified electrician.
• The UPS must be connected to a branch circuit, equipped with a circuit breaker rated as specified in
the tables below.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.

CAUTION
RISK OF FIRE
• In the case of “Dual input” operation, make sure the jumpers between the input lines have been
removed.
• The AC input and the AC bypass supplies must be referenced to the same neutral point.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.

Input Connections Output Connections

Main Input Hardwire
Single-Phase: Wire to L1, Input-N, and Single-Phase: Wire to L1, N, and
Three-Phase: Wire to L1, L2, L3, Input-N , and Three-Phase: Wire to L1, L2, L3, N , and
Bypass Input (optional)
Single-Phase: Wire to B1, Bypass-N
Three-Phase: Wire to B1, B2, B3, Bypass-N

Single Feed

Number Current External Input

Wire Size*
Wiring of Voltage Full Load*** Circuit Breaker
(typical)
Phases (maximum) (typical)
Input 1 220/230/240 VAC 100.2 A 100 A 25 mm2
Output 1 220/230/240 VAC 68.2 A not required 16 mm2
Input 3 380/400/415 VAC 33.5 A each phase 100 A** 25 mm2**
SRTG15KXLI
Output 1 220/230/240 VAC 68.2 A not required 16 mm2
Input 3 380/400/415 VAC 33.5 A each phase 40 A each phase 10 mm2
Output 3 380/400/415 VAC 22.8 A each phase not required 6 mm2
Input 1 220/230/240 VAC 124.1 A 125 A 35 mm2
Output 1 220/230/240 VAC 90.9 A not required 25 mm2
Input 3 380/400/415 VAC 41.5 A each phase 125 A** 35 mm2**
SRTG20KXLI
Output 1 220/230/240 VAC 90.9 A not required 25 mm2
Input 3 380/400/415 VAC 41.5 A each phase 50 A each phase 16 mm2
Output 3 380/400/415 VAC 30.4 A each phase not required 10 mm2

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 11

Dual Feed

Number Current External Input External Input Wire Size Wire Size
Wiring of Voltage Full Load*** Circuit Breaker Circuit Breaker Mains* Bypass*
Phases (maximum) Mains (typical) Bypass (typical) (typical) (typical)
220/230/240
Input 1 VAC 100.2 A 100A 100A 25 mm2 25 mm2
Output 1 220/230/240 68.2 A not required not required 16 mm2 16 mm2
VAC
380/400/415
33.5 A each
SRTG15K Input 3 VAC 40 A each phase 100 A ** 10 mm2 25 mm2**
phase
XLI Output 1 220/230/240 68.2 A Not required not required 16 mm2 16 mm2
VAC
380/400/415 33.5 A each
Input 3 VAC phase 40 A each phase 40 A each phase 10 mm2 10 mm2
Output 3 380/400/415 22.8 A each Not required not required 6 mm2 6 mm2
VAC phase
220/230/240
Input 1 VAC 124.1 A 125 A 125 A 35 mm2 35 mm2
Output 1 220/230/240 90.9 A not required not required 25 mm2 25 mm2
VAC
380/400/415
41.5 A each
SRTG20K Input 3 VAC 50 A each phase 125 A ** 16 mm2 35 mm2**
phase
XLI Output 1 220/230/240 90.9 A Not required not required 25 mm2 25 mm2
VAC
380/400/415 41.5 A each
Input 3 VAC phase 50 A each phase 50 A each phase 16 mm2 16 mm2
Output 3 380/400/415 30.4 A each Not required not required 10 mm2 10 mm2
VAC phase
*Terminal screw tightening torque: 4.5Nm (40 lb-in).
**Use cables and input circuit breakers specified in above table.
Note: Units configured for three phase input and single phase output operation, the entire load connected to the UPS will
transfer to L1 and Neutral of the three phase input when the UPS is operating in Bypass mode.
***The current is specified at nominal input voltage.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 12

Connect Equipment
CAUTION
RISK OF ELECTRIC SHOCK
• Disconnect the mains input circuit breaker before installing or servicing the UPS or connected
equipment.
• Disconnect internal and external batteries before installing or servicing the UPS .
• The UPS contains internal and external batteries that may present a shock hazard even when
disconnected from the mains.
• The AC hardwired and pluggable outlets may be energized by remote or automatic control at any
time.
• Disconnect equipment from the UPS before servicing.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.
Note: The UPS batteries will charge to 90% capacity in the first 4 hours of normal operation.
Do not expect full battery runtime during this initial charge period.
1. Connect the UPS to the building utility power. Refer to the Installation manual supplied with the UPS.
2. Connect equipment to the outlets on the rear panel of the UPS.

Turn the UPS On/Off

WARNING
RISK OF ELECTRIC SHOCK
The output sockets or terminals of the Smart-UPS can be energized when input voltage is applied to the
unit.
Failure to follow these instructions can result in death or serious injury and equipment damage.

The first time the UPS is turned on the Setup Wizard screen will run. Follow the prompts to configure UPS settings. Refer
to “Configuration” on page 17. After "Configuration" is completed, the UPS automatically enters "online" mode or
"battery" mode.
Note:
1. When there is no input power and the UPS is off, the cold start feature can be used to turn on the UPS and
connected equipment using battery power. To perform a cold start, press the POWER ON/OFF button for more than
one second. The LCD will illuminate. To turn off output use Turn Off Immediately or Turn Off with delay
command through LCD. To shutdown the UPS, use Shutdown immediately or Shutdown with delay command
through LCD.
2. When the unit is working in mains standby mode and AC power is turned off, the UPS will continue to operate on
battery standby mode for a while before shutting down.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 13

UPS Display Interface
❶ Alert LED
❷ Battery status icon ❿ ⓫ ⓬ ⓭
❸ DOWN button
❶
❹ UP button
❺ OK button ❾ ONLINE
❻ ESC button OUTPUT OUTPUT
❽
❼ Load icon
❽ UPS status information LOAD
❼ ❷
❾ Operation mode information
❿ Online LED
⓫ On Battery LED
⓬ POWER ON/OFF button ❻ ❺ ❹ ❸
⓭ Bypass LED

Load icon: The approximate load capacity percentage is indicated by the number of load
bar sections illuminated. Each bar represents 20% of the load capacity.

Mute icon: Indicates the audible alarm is disabled/mute.

UPS status information

The status information field provides key information on the status of the UPS.
The Main Screen will scroll through the following parameters：
• Input Voltage
• Input Frequency
• Output Voltage
• Output Current
• Output Frequency
• Load Active Power
• Load Apparent Power
• Load Rate
• Battery Temperature
• Battery Capacity
• Battery Runtime
• Ambient Temp.
In the case of a UPS event, status updates will be displayed defining the event or condition that has occurred.
The display screen illuminates amber to indicate a precaution and red to indicate an Alert depending on the severity of the
event or condition.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 14

Operation mode icons
On-Line mode: The UPS is supplying conditioned mains power to
connected equipment.

ONLINE

Bypass mode: The UPS is in Bypass mode and the connected equipment
will receive mains power as long as the input voltage and frequency are
within the configured limits. The UPS will not switch to Battery mode if
mains power fails when the UPS is operating in Bypass mode.
BYPASS

Green mode: In Green mode mains power is sent directly to the load.
In the event of a mains power outage, there will be an interruption in power
to the load of up to 10ms while the UPS switches to On-Line or Battery
mode.
ONLINE When enabling Green mode attention should be given to devices that may
be sensitive to power fluctuations.
Battery mode: The UPS is supplying battery power to connected
equipment.

ON BATTERY

Battery status icons

Battery Capacity: Indicates the battery power.

Battery Charge In Progress: Indicates the battery is charging.

UPS display interface operation

Use the UP/DOWN buttons to scroll through the options. Press the OK button to accept the selected option. Press the ESC
button to return to the previous menu.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 15

Configuration Menus Overview
Main Menu
Status
Control
Configuration
Test & Diagnostics
Logs
About

Control Menu Config Menu

Status Menu Test & Diagnostics About Menu
UPS UPS Logs Menu
UPS Menu UPS
Bypass Control Battery Event Log
Battery Self Test Battery
Parallel Control Display

UPS
UPS UPS
UPS Part Number
Output Power, VA, KW, % Green mode Enable/Disable
Output OFF: No Action/Turn On Serial Number
Output Voltage, Current, Frequency Generator mode Enable/Disable
with delay/Turn On immediately Manufacture Date
Battery Charge, Runtime Work mode Single/Parallel
Output ON: No Action/Turn Off with Firmware Version
Input Voltage, Frequency Output Setting Voltage/Frequency/Phase*
delay/Turn Off immediately DSP Firmware *
Bypass Voltage, Frequency Battery Settings Low Runtime Warning
Battery State: No Action/Shutdown Comm Firmware*
UPS Self Test Self Test Schedule
with delay/Shutdown LCD Firmware *
Default Setting
immediately/Turn Off with delay/Turn Date and Time
Off immediately
Battery
Battery Install Date Battery
Battery Install/Replace Date Bypass Control Replace Notification Install and Replace
Battery Charge, Runtime, Single mode: Replace Battery Alarm Date
Temperature No Action Temperature Sensor
Go into Bypass External Battery Pack
Go out of Bypass
Parallel mode:
Display
No Action
Language
Parallel go into Bypass
Audible Alarm
Parallel go out of Bypass
LCD Backlight
LCD Brightness Setting
Parallel control Menu Type
No Action Date and Time
Go out of Parallel
Go into Parallel

Menus are subject to change depending on the installed firmware version.

* Available on the Advanced Menu Screens.
Note: To switch from Green mode to Bypass mode: disable Green mode and enable Go into Bypass using the LCD display interface.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 16

Configuration
UPS settings

The first time the UPS is turned on the Setup wizard screen will open. On each menu screen select the desired settings.
Press OK after each UPS setting is selected.
Note: The UPS will not turn on until all of the settings have been configured.

Startup wizard

Function Description
Select the language required for the UPS Display Interface.
Options:
• English
• Francais
• Italiano
• Deutsch
• Espanol
• Portugues
• Русский
• 简体中文

Select the Input: Output Phase

Options:
• 1:1
• 3:3
• 3:1

Select the output voltage (Input:Output phase is 1:1 or 3:1).

Options:
• 220 VAC
• 230 VAC
• 240 VAC

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 17

 Select the output voltage (Input:Output phase is 3:3).
Options:
• 380 VAC
• 400 VAC
• 415 VAC

Select the desired menu type.

Options:
• Standard
• Advanced
Refer to “Configuration Menu Overview” on page 16 for details on
parameters which need to be configured using Advanced Menu.

Set the number of external battery packs.

Minimum battery pack：0
Maximum battery pack：4

Set the installation date of all RBC.

Set the Date and Time.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 18

General settings

Configure these settings at any time, using the UPS Display Interface, or the Network Management web Interface.
Parameters Default Value Options Description
Disable or enable Green mode operation,
Disable
Green Mode Disable If the Green mode is turned on, the
Enable
generator mode cannot be set.
Disable or enable Generator mode
operation.
If Generator mode is enabled, the Green
mode cannot be set.
Generator Disable To enable Green mode, disable
Disable
Mode Enable Generator mode first.
Output power de-rates to 75% in 1:1
mode, if unit is operating in frequency
converter mode.
No derating for 3:1 and 3:3 modes.
Operating Single Mode
Single Mode Set the operating mode for UPS.
Mode Parallel Mode
Parallel ID 1 1-4 Set the parallel ID for UPS.
Parallel Units 2 2-4 Set the parallel units of UPS.
Parallel
Redundant 0 0-3 Set the redundant units of UPS.
Units
Config
Menu UPS Set the output voltage for the UPS. This
1:1 or 3:1 mode:
setting can only be changed when the UPS
Output 1:1 or 3:1 mode: 230 V 230 V, 220 V, 240 V
output is off.
Voltage 3:3 mode: 400 V 3:3 mode:
These settings may vary depending on the
380 V,400 V,415 V
UPS model.
1:1 Set the input and output phase.
Output Phase 1:1 3:1 This setting can be set in advanced mode
3:3 and when the UPS output is off.
Auto Set the output frequency for the UPS.
Output
Auto 50 Hz This setting can be changed only when the
Frequency
60 Hz UPS output is turned off.
The UPS will emit an audible alarm when
Low Runtime
150 seconds 0 to 1800 seconds the remaining runtime has reached this
Alarm
threshold.
Never
Self Test Startup + every 14 days Startup This is the interval at which the UPS will
Schedule since last test Startup + 14 days execute a Self Test.
Startup + 7 days
Allows the user to restore the UPS factory
Default default settings. This setting can be
No Yes/No
Setting changed only when the UPS output is
turned off.

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 Parameters Default Value Options Description
Day-Month-
Install Date 01-Dec-2019 Enter the installation date of the RBCs.
Year
To set the Near End of Life audible alarm,
select the number of days before the estimated
battery end of life.
Replacement When this date is reached the UPS will emit an
Notification 180 days 0-730 days audible alarm and a message will appear on the
Time UPS Display Interface screen.
Example: Using the default value, the Near
Config End of Life audible alarm will occur 180 days
Menu before the estimated end of life date.
Battery
The Near End of Life audible alarm can be
muted.
Replacement
Enter the number of days between the time a
Battery Alarm 14 days 0-365 days
Near End of Life audible alarm is
Time
acknowledged and the next Near End of Life
audible alarm occurs.
Temperature Select whether to enable or disable the battery
Enable Disable/Enable
Sensor temperature sensor.
External
0 0-4 Set the number of external batteries
Battery Pack
English
Francais
Italiano
Deutsch Select the language required for the UPS
Language English
Espanol Display Interface.
Portugues
Pусский
简体中文
Disable
Soft When audible alarms are disabled, the UPS will
Audible Alarm Medium
Medium not emit an audible alarm.
Loud

Config To conserve energy, the LCD back light

Menu illumination dims or turns off when no events
Display Auto Dim are active.
LCD Backlight Auto Dim Auto Off Full UPS Display Interface illumination returns
Always On when the UPS changes status as a result of an
event or when any button on the UPS Display
Interface is pressed.
LCD
Adjust the brightness and contrast individually
Brightness 3 1-5
for each LCD back light color.
Setting
The Standard menus include the most
Standard commonly used options.
Menu Type Standard
Advanced The Advanced menu options include all
parameters.
Date and Time 2019-01-01 00:00:00 Date and time Enter the current date and time.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 20

Emergency Power Off
Overview

The Emergency Power Off (EPO) option is a feature that will immediately disconnect all connected equipment from UPS
power. The UPS will turn off the output when the EPO function is triggered.
To restore the unit – when the UPS is working in Online mode:
1. Turn off the AC power and wait for the UPS to shut down.
2. Turn on the AC power to UPS to reset the EPO function.
3. To turn on the output use the Turn On Immediately or Turn On with delay command through LCD.
To restore the unit – when the UPS is working in Battery mode:
1. UPS will shut down after the EPO function is triggered.
2. Press the POWER ON/OFF button to turn on the UPS.
CAUTION
RISK OF ELECTRIC SHOCK
• Adhere to all national and local electrical codes.
• Wiring must be performed by a qualified electrician.
• Always connect the UPS to a grounded outlet.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.

Normally closed & open contacts

Use 16-28AWG wire, secure the wires by tightening the screws.

EPO EPO Wiring Diagram Function
1. Remove the wire jumper between terminals 3 & 4.
2. Connect wires from the Normally Closed (NC) contact
of the EPO switch/relay.
EPO-NC (Default)
The EPO function will be triggered when the wire jumper
between pins 3 and 4 is removed or the EPO contact changes
to Normally Open (NO).

1. Connect wires from the Normally Open (NO) contact of

the EPO switch/relay.
EPO-NO The EPO function will be triggered when wire jumper
between terminals 3 and 4 is removed or the EPO
switch/relay contact changes to NC.

The EPO interface is a Safety Extra Low Voltage (SELV) circuit.

The EPO switch or relay should be rated for “dry” circuit applications, the rating should be for low voltage and low current
applications.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 21

Overview of Parallel System
Note: In parallel systems with an external maintenance bypass breaker Ext. MBB, the maintenance bypass breakers MBB
must be padlocked in the open position.
Ext. MBB

UPS 1
Static Bypass Switch
BIB SSIB
Ext.
MIB UIB UOB UOB
Rectifier Inverter

Battery BB
Charger

UPS 2
Static Bypass Switch
Bypass BIB SSIB
Ext.
Input MIB UIB UOB UOB SIB Load
Rectifier Inverter

Battery BB
Charger

UPS 3
Static Bypass Switch
BIB SSIB
Ext.
MIB UIB UOB UOB
Rectifier Inverter

Battery BB
Charger

MIB Mains input breaker

BIB Bypass input breaker
UIB Unit input breaker
SSIB Static switch input breaker
UOB Unit output breaker
Ext. UOB External unit output breaker
Ext. MBB External maintenance bypass breaker
SIB System isolation breaker
BB Battery breaker

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 22

Wiring specification:

Mains circuit SRTG15KXLI SRTG20KXLI MBS

Number
Current Wire Current Wire Current Wire Wire
of Wiring Voltage
Full Load Size Full Load Size Full Load Size Size
Phases
(maximum) (typical) (maximum) (typical) (maximum) (typical) (typical)

220/230/240
Input 248.2 A 120 mm2 100.2 A 25 mm2 124.1 A 35 mm2
VAC
1:1
220/230/240
Output 181.8 A 70 mm2 68.2 A 16 mm2 90.9 A 25 mm2
VAC
L1 and
248.2 A 120 mm2 100.2 A 25 mm2 124.1 A 35 mm2
N 380/400/415
Input
Single L2 and VAC 83 A each 33.5 A each 41.5 A each
3:1 25 mm2 25 mm2 35 mm2
Feed L3 phase phase phase
220/230/240
Output 181.8 A 70 mm2 68.2 A 16 mm2 90.9 A 25 mm2
VAC
380/400/415 83 A each 33.5 A each 41.5 A each
Input 25 mm2 10 mm2 16 mm2
VAC phase phase phase
3:3
380/400/415 60.8 A each 22.8 A each 30.4 A each
Output 25 mm2 6 mm2 10 mm2
VAC phase phase phase
0.3 mm2
220/230/240
Input 248.2 A 120 mm2 100.2 A 25 mm2 124.1 A 35 mm2
VAC
1:1
220/230/240
Output 181.8 A 70 mm2 68.2 A 16 mm2 90.9 A 25 mm2
VAC
83 A each 33.5 A each 41.5 A each
Mains 25 mm2 10 mm2 16 mm2
380/400/415 phase phase phase
Input
Dual VAC
3:1 BPS* 248.2 A 120 mm2 100.2 A 25 mm2 124.1 A 35 mm2
Feed
220/230/240
Output 181.8 A 70 mm2 68.2 A 16 mm2 90.9 A 25 mm2
VAC
380/400/415 83 A each 33.5 A each 41.5 A each
Input 25 mm2 10 mm2 16 mm2
VAC phase phase phase
3:3
380/400/415 60.8 A each 22.8 A each 30.4 A each
Output 25 mm2 6 mm2 10 mm2
VAC phase phase phase

*BPS: Bypass

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 23

Network Management Interface
Introduction

The UPS has a network port and a console port that can be used to access the Network Management Interface. To
access all the network management documentation and to download firmware updates, configuration wizards and MIB,
visit https://www.apc.com/upsnmc.
For network-based, graceful, unattended shutdown of your physical servers and virtual machines, it is highly recommended
that you install the latest version of PowerChuteTM Network Shutdown. Learn more and download for free from
https://www.apc.com/pcns.

IP Address Configuration

The default TCP/IP configuration setting DHCP, assumes that a properly configured DHCP server is available to provide
TCP/IP settings to the Network Management Interface.
If the Network Management Interface obtains an IPv4 address from a DHCP server, use the display interface menus
About/Accessory, to see the address.
To setup a static IPv4 address use the display interface Config menu. Set the IP address Subnet Mask and Gateway from the
Config menu.
See the NMC installation manual for user information about the Network Management Interface and for setup instructions.

Related Documents

The following documentation is available on the APC by Schneider Electric Web site:
• UPS Network Management Card User Guide
• UPS Network Management Card Command Line Interface Guide
• UPS Network Management Card Modbus Documentation Addendum
• UPS Network Management Card Modbus Register Maps
• Network Management Card Upgrade Utilities
• Security Handbook
• PowerNet ® Management Information Base (MIB) Reference Guide
• Declaration of Conformity

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 24

Replace the RBCs
An RBC should only be disconnected or removed from the UPS temporarily as part of the battery
replacement procedure.
• Disconnect all connected battery modules in the UPS. Slide the RBCs out of the UPS.
• Slide the new RBCs into the UPS and connect the battery modules to the UPS.
• Securely connect each battery module. Press the battery connector into the UPS until it is firmly connected.
• A battery that is not fully connected will cause erratic UPS operation, abnormal alert messages and connected
equipment may not receive battery power during power outages.
• After installing the RBC, the UPS display interface may prompt the user to verify the status of the replaced
battery modules. If the battery module is new, respond YES. If the battery module is not new, respond NO.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 25

Troubleshooting
Use the table below to solve minor installation and operation problems.
Refer to the APC by Schneider Electric Web site, www.apc.com for assistance with complex UPS problems and Firmware
upgrade or contact your local Customer Care Center for more information.
Note: Before starting up, make sure the mains input, bypass input and output connections are correct.
Detected error and Possible Cause Solution
UPS will not turn on or there is no output
The UPS is not connected to mains power. Be sure the power cable is securely connected to the UPS and to the mains
power supply.
The UPS display interface screen shows Check the mains power supply to verify acceptable power quality.
very low or no mains power.
There is an internal UPS alert. The UPS Display Interface screen will show a message to identify the
alert and corrective action.
UPS emits an audible alarm
Normal UPS operation when running on • The UPS is operating on battery power.
battery power. • Press ESC key to mute the audible alarm.
The UPS emits an audible alarm and has a • An Alarm or Notification condition exists.
red or amber back light on the LCD Display Follow the instructions on the LCD Display Interface screen.
Interface screen. • Press ESC key to mute the audible alarm.
The LCD display interface screen displays • The connected equipment exceeds the specified maximum load.
an overload condition. Refer to the APC by Schneider Electric Web site, www.apc.com for
product specifications.
• The UPS will emit a sustained audible alarm till the overload
condition exists.
• Disconnect nonessential equipment from the UPS to correct the
overload condition.
UPS does not provide expected backup time
The UPS batteries are weak due to a recent • Charge the batteries.
power outage. • Batteries require recharging after extended outages and wear out
faster when put into service often or when operated at elevated
temperatures.
The UPS batteries are near the end of If the batteries are near the end of service life, consider replacing the
service life. batteries even if the Replace Battery message is not displayed.
UPS operates on battery power while connected to mains power
The input circuit breaker has tripped. • Reduce the load on the UPS.
• Disconnect nonessential equipment and switch on the circuit breaker.
• Check the circuit breaker rating for the connected equipment.
There is very high, very low, or distorted • Navigate to the LCD Display Interface screen that shows input
input line voltage. voltage. Verify that the input voltage is within specified operating
limits.
• If no input voltage is indicated on the LCD Display Interface screen,
contact Customer Support through the APC by Schneider Electric Web
site, www.apc.com.
UPS Display Interface Status screen shows UPS is operating in Bypass mode
The UPS received a command to operate in No action is required.
Bypass mode.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 26

Detected error and Possible Cause Solution
The UPS has automatically switched to • The LCD Display Interface screen will show a message to identify the
Bypass mode due to an internal UPS alert. alert and the corrective action to be taken.
The LCD Display Interface screen displays Battery Disconnected
UPS does not detect the battery • Be sure the battery cables are securely connected.
• Perform a UPS Self Test using the LCD Display Interface -> menu
option -> Test and Diagnostics to be sure that the UPS detects all the
connected batteries.
The UPS display turns red or amber, displays an alert message, and emits a sustained audible alarm. Red
illumination indicates a UPS alarm that requires immediate attention
Amber illumination indicates a UPS alarm that requires attention
There is an UPS internal alert. Do not attempt to use the UPS. Turn the UPS off and have it serviced
immediately.

The UPS is experiencing an abnormal Check the UPS according to displayed information.
condition.

The set date for Battery Replacement has

Replace the battery at the set date.
been reached.
Installation date is not set after battery
Set the correct date of installation of battery.
replacement.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 27

If the XLBP does not work normally, it might be due to improper installation, wiring or operation.
Be sure that the XLBP has been installed and wired properly. Follow the instructions in the manuals supplied with the
XLBP for operating the XLBP.
If the XLBP still does not work normally, then contact Customer Support through APC by Schneider Electric Web site,
www.apc.com or contact your local Customer Care Center for more information.
Provide the following information when asked:
1. Product model name and serial number.
2. Try to describe the detected problem with additional details such as LCD display info, LED lights status, etc.
Use the table below to solve minor installation and operation issues.
Detected error and Possible Cause Solution
Battery LED is flashing but no voltage at terminals
Battery breaker is not switched on. Switch on the battery breaker.
Batteries are EOL, low voltage etc. Replace whole group of batteries.
Battery number and capacity is not set Set the correct number of batteries and the capacity connected to the
correctly in UPS settings. UPS using the LCD display.
UPS does not cold start
Battery breaker is not switched on. Be sure that the battery breaker is switched on.
Battery fuse is open. Change the battery fuse.
Battery charge is low. Charge the batteries.
Battery EOD* audible alarm
Battery is fully discharged. Charge the batteries.
Low battery voltage audible alarm
Battery voltage is low. Charge the batteries.
Battery disconnected audible alarm
The battery is not connected to the UPS. • Be sure that the battery connector is securely connected to the UPS.
• Be sure that all RBCs are securely connected.
Battery charger error detected
The UPS has detected an internal error in • Switch off the UPS, disconnect the UPS from AC Mains.
the charger. • Contact your dealer or local Customer Care Center.
* EOD: End of Discharge

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 28

Transport
1. Shut down the UPS and disconnect all connected equipment.
2. Disconnect the unit from mains power.
3. Disconnect all internal and external batteries (if applicable).
4. Follow the shipping instructions outlined in the Service section of this manual.

Service
If the unit requires service, do not return it to the dealer. Follow these steps:
1. Review the Troubleshooting section of the manual to eliminate common problems.
2. If the problem persists, contact APC by Schneider Electric Customer Support through the APC by Schneider
Electric Web site.www.apc.com.
a Note the model number and serial number and the date of purchase. The model and serial numbers are
located on the rear panel of the unit and are available through the LCD display on select models.
b Call APC by Schneider Electric Support and a technician will attempt to solve the problem over the phone.
If this is not possible, the technician will issue a Returned Material Authorization Number (RMA#).
c If the unit is under warranty, the repairs are free.
d Service procedures and returns may vary internationally. Refer to the APC by Schneider Electric Web site
for country specific instructions.
3. Pack the unit properly to avoid damage in transit. Never use foam beads for packaging. Damage sustained in
transit is not covered under warranty.
4. Before shipping, always disconnect all battery modules in a UPS or external battery pack.
5. Write the RMA# provided by Customer Support on the outside of the package.
6. Return the unit by insured, prepaid carrier to the address provided by Customer Support.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 29

Limited Factory Warranty
Schneider Electric IT Corporation (SEIT), warrants its products to be free from defects in materials and workmanship
for a period of three (3) years excluding the batteries, which are warranted for two (2) years from the date of purchase.
The SEIT obligation under this warranty is limited to repairing or replacing, at its own sole option, any such defective
products. Repair or replacement of a defective product or part thereof does not extend the original warranty period.
This warranty applies only to the original purchaser who must have properly registered the product within 10 days of
purchase. Products may be registered online at warranty.apc.com.
SEIT shall not be liable under the warranty if its testing and examination disclose that the alleged defect in the product
does not exist or was caused by end user or any third person misuse, negligence, improper installation, testing,
operation or use of the product contrary to SEIT recommend actions of specifications. Further, SEIT shall not be liable
for defects resulting from: 1) unauthorized attempts to repair or modify the product, 2) incorrect or inadequate
electrical voltage or connection, 3) inappropriate on site operation conditions, 4) Acts of God, 5) exposure to the
elements, or 6) theft. In no event shall SEIT have any liability under this warranty for any product where the serial
number has been altered, defaced, or removed.
EXCEPT AS SET FORTH ABOVE, THERE ARE NO WARRANTIES, EXPRESS OR IMPLIED, BY
OPERATION OF LAW OR OTHERWISE, APPLICABLE TO PRODUCTS SOLD, SERVICED OR
FURNISHED UNDER THIS AGREEMENT OR IN CONNECTION HEREWITH.
SEIT DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTION AND
FITNESS FOR A PARTICULAR PURPOSE.
SEIT EXPRESS WARRANTIES WILL NOT BE ENLARGED, DIMINISHED, OR AFFECTED BY AND NO
OBLIGATION OR LIABILITY WILL ARISE OUT OF, SEIT RENDERING OF TECHNICAL OR OTHER
ADVICE OR SERVICE IN CONNECTION WITH THE PRODUCTS.
THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER
WARRANTIES AND REMEDIES. THE WARRANTIES SET FORTH ABOVE CONSTITUTE SEIT’S SOLE
LIABILITY AND PURCHASER EXCLUSIVE REMEDY FOR ANY BREACH OF SUCH WARRANTIES.
SEIT WARRANTIES EXTEND ONLY TO ORIGINAL PURCHASER AND ARE NOT EXTENDED TO
ANY THIRD PARTIES.
IN NO EVENT SHALL SEIT, ITS OFFICERS, DIRECTORS, AFFILIATES OR EMPLOYEES BE LIABLE
FOR ANY FORM OF INDIRECT, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES,
ARISINGOUTOFTHEUSE, SERVICE OR INSTALLATION OF THE PRODUCTS, WHETHER SUCH
DAMAGES ARISE IN CONTRACT OR TORT, IRRESPECTIVE OF FAULT, NEGLIGENCE OR
STRICTLIABILITYORWHETHERSEITHASBEENADVISEDINADVANCEOFTHEPOSSIBILITY OF
SUCH DAMAGES. SPECIFICALLY, SEIT IS NOT LIABLE FOR ANY COSTS, SUCH AS LOST
PROFITSORREVENUE,WHETHE RDIRECT OR INDIRECT,LOSSOFEQUIPMENT,LOSSOFUSE OF
EQUIPMENT, LOSS OF SOFTWARE, LOSS OF DATA, COSTS OF SUBSTITUANTS, CLAIMS BY THIRD
PARTIES, OROTHERWISE.
NOTHING IN THIS LIMITED WARRANTY SHALL SEEK TO EXCLUDE OR LIMIT OR DEATH OR
PERSONAL INJURY RESULTING FROM ITS NEGLIGENCE OR ITS FRAUDULENT
MISREPRESENTATION OF TO THE EXTENT THAT IT CANNOT BE EXCLUDED OR LIMITED BY
APPLICABLE LAW.
To obtain service under warranty you must obtain a Returned Material Authorization (RMA) number from customer
support. Customers with warranty claims issues may access the SEIT worldwide customer support network through the
APC by Schneider Electric Web site: www.apc.com. Select your country from the country selection drop down menu.
Open the Support tab at the top of the web page to obtain information for customer support in your region. Products
must be returned with transportation charges prepaid and must be accompanied by a brief description of the problem
encountered and proof of date and place of purchase.

Smart-UPS RT SRTG15K/20K Tower/Rack-Mount 30

 APC by Schneider Electric
Worldwide Customer Support
Customer support for this or any other APC™ by Schneider Electric product is available at no charge in any of
the following ways:
• Visit the APC by Schneider Electric Web site to access documents in the APC by Schneider Electric
Knowledge Base and to submit customer support requests.
– www.apc.com (Corporate Headquarters)
Connect to localized APC by Schneider Electric Web sites for specific countries, each of which provides
customer support information.
– www.apc.com/support/
Global support searching APC by Schneider Electric Knowledge Base and using e-support.
• Contact APC by Schneider Electric Customer Support Center by telephone or e-mail.
– Local, country specific centers: go to www.apc.com/support/contact for contact information.
For information on how to obtain local customer support, contact the APC by Schneider Electric representative
or other distributor from whom you purchased your APC by Schneider Electric product.

Customer support and warranty information are available on the APC by Schneider Electric Web site, www.apc.com.

© 2020 APC by Schneider Electric. APC, the APC logo, PowerChute, and Smart-UPS are owned by Schneider
Electric Industries S.A.S. or their affiliated companies. All other trademarks are property of their respective owners.
EN 990-6201
12/2020