Installation Smart-UPS™ RT

SRTG15K-SRTG20K Tower/Rack-Mount
Important Safety Instructions
SAVE THESE INSTRUCTIONS: This manual contains important instructions that should be followed during
installation and maintenance of the Smart UPS and batteries. Read these 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

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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 separate battery pack 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.

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Battery safety

CAUTION
RISK OF FALLING OBJECTS
• The equipment is heavy. Each battery module weighs 24.5 kg (54 lb).
• Always practice safe lifting techniques adequate for the weight of the equipment.
• Remove the battery modules before installing the UPS.
• Use the battery module handle to slide the battery modules in or out of the UPS.
• Do not use the battery module handle to lift or carry the battery module.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.

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 lay tools or metal parts on top of batteries.
• 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. Keep unauthorized personnel away from batteries.
• A battery can present a risk of electric shock and burns by high short-circuit current. The following precautions
should be observed when working on batteries
a) Disconnect the charging source prior to connecting or disconnecting battery terminals.
b) Do not wear any metal objects including watches and rings.
c) Do not lay tools or metal parts on top of batteries.
d) Use tools with insulated handles.
e) Wear rubber gloves and boots.
f) Determine if battery is either intentionally or inadvertently grounded. Contact with any part of a
grounded battery can result in electric shock and burns by high short-circuit current. The risk of such
hazards can be reduced if grounds are removed during installation and maintenance by a skilled
person.
• 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.

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 • 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.

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Package Contents
Inspect the contents upon receipt. Notify the carrier and dealer if the unit is damaged.

Included with all models：

Front bezel RJ45 to DB9 cable M5 Floating nut to secure Stabilizer bracket
the UPS to the pillar

(x1)

USB cable (x4) (x2pairs)

M5x12 Phillips flat head Stabilizer bracket
screw to secure the UPS to connectors
the pillar

(x1)

Parallel cable (x2)

(x4)
Rack-mount brackets
M4x6 flat head screws to
secure the rack-mount
brackets to the UPS

(x1)

C19/C20, 16 A, 1.5 m (x1pair)

(x8)
Installation manual
M4x8 screws to secure the
jumper to the UPS

(x1)
(x1)
(x1)
Terminal box
Packing list
(x3)

M6x12 screws to secure the

jumper to the UPS
(x1) (x1)
M4x8 screws to secure the Factory routine test
report
terminal box to the UPS
(x2)

(x1)Factory routine test

(x4) report

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Jumper SJ1 (*3:3, single Jumper SJ3 (*1:1 , dual feed) Jumper SJ4 (1:1, dual Jumper SJ6 (*3:1, dual
feed) input) feed)

(x3) (x1)
Jumper SJ7 (3:1, single feed) Jumper SJ8 (3:1, single feed) (x1) (x1)

(x1)
(x1)
*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”.

For SRTG15KXLI

Terminal Heat shrink tube

2
16 mm - Φ6 mm - x3 Φ8x30 - x3
2
25 mm - Φ6 mm - x5 Φ10x30 - x5

For SRTG20KXLI

Terminal Heat shrink tube

2
25 mm - Φ6 mm - x3 Φ10x30 - x3
2
35 mm - Φ6 mm - x5 Φ12x35 - x5

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Included in the battery pack supplied with the UPS
Front bezel M5 Floating nut to secure Stabilizer bracket Installation manual
the UPS to the pillar connectors

(x8)
(x1)
(x4) Rack-mount brackets Packing list
M4x10 flat head screws to
secure the rack-mount
brackets to battery Pack.

(x8) (x1)
(x1pair)
M5x12 Phillips flat head Stabilizer bracket
screw to secure the UPS to Ground wire 0.64m
the pillar

(x1) (x2pairs)
(x4)
Battery pack temperature
Battery cable 0.64m
sensor wire 0.64m

（x1）

(x1)
(x1)

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Recommended terminals and heat shrink tubings (not supplied)
For SRTG15KXLI
2
10 mm - Φ6 mm – x4
Terminal
2
3:1 16 mm - Φ6 mm – x3
2
25 mm - Φ6 mm – x5
2
6 mm - Φ6 mm – x5
3:3
2
10 mm - Φ6 mm – x9

Φ8x30 – x7
Heat shrink tube 3:1
Φ10x30 – x5

Φ6x30 – x5
3:3
Φ8x30 – x9

For SRTG20KXLI
2
16 mm - Φ6 mm – x4
Terminal
2
3:1 25 mm - Φ6 mm – x3
2
35 mm - Φ6 mm – x5
2
10 mm - Φ6 mm – x5
3:3
2
16 mm - Φ6 mm – x9

Φ8x30 – x4
Heat shrink tube
3:1 Φ10x30 – x3

Φ12x35 – x5

3:3 Φ8x30 – x14

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

Environmental

Operating 0 to 40 ºC (32 to 104 ºF)

Temperature
Storage -15 to 45 ºC (5 to 113 °F)

0 - 3,000 m (0 - 10,000 ft)

0 - 1,000 m no derating;
Operating 1,000 to 3,000 m,
Maximum Elevation
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

Applicable Standard IEC 62040-1

Pollution Degree 2

Overvoltage category II

Applicable power grid power distribution IT/TT/TN

system
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.)
*D1=625 mm (24.60 in);
*D2=835 mm (32.87 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.)
Screw of grounding M6*2
The model and serial numbers are on a small label located on the rear panel.

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* Details of D1 and D2

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 the APC by Schneider Electric Web
site, www.apc.com. for information on replacement batteries.
Total voltage of battery pack for the UPS ±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 of each battery pack)×(No of battery packs)

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UPS XLBP RBC Parallel Kit Rail Kit
SRTG15KXLI SRTGRK1 for UPS Power Module
SRTG192XLBP2 APCRBC172 SRTGPK01 SRTGRK2 for Battery Pack
SRTG20KXLI

Electrical

Model 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)

Output short-circuit RMS

350A
current

Output short-circuit peak

450A
current

Output short circuit time >500ms

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)

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Rack Mount Installation
Refer to the Rail Kit Installation Guide for instructions on rail installation.
CAUTION
RISK OF FALLING OBJECTS
• The equipment is heavy. Always practice safe lifting techniques adequate for the weight of the
equipment.
• Always use the recommended number of screws to secure brackets to the UPS.
• Always use the recommended number of screws and cage nuts to secure the UPS to the rack.
• Always install the UPS at the bottom of the rack.
• Always install the XLBP below the UPS in the rack.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.

❶ Install the battery pack in the rack before installing the UPS in the rack.
Refer to the installation manual provided with the battery pack for detailed instructions.

❷ Secure the front of rail (SRTGRK1) with 6 (M5x12) screws.

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❸ Secure the back of rail (SRTGRK1) with 6 (M5x12) screws.

❹ Secure the brackets on UPS module with 8 (M4x6) screws.

❺ Rest the UPS module on the rail shelves.

Slide the UPS into the rack.

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❻ Secure brackets to the rack with 4 (M5x12) screws.

❼ Install the front bezel of both the battery pack and the UPS.

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Tower Installation
CAUTION
RISK OF FALLING OBJECTS
• The equipment is heavy. Each battery module weighs 24.5 kg (54 lb).
• Always practice safe lifting techniques adequate for the weight of the equipment.
• Remove the battery modules before installing the UPS.
• Use the battery module handle to slide the battery modules in or out of the UPS.
• Do not use the battery module handle to lift or carry the battery module.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.

❶ Assemble UPS stabilizer bracket.

❷ Remove the screws securing the battery compartment door and remove the battery compartment door.

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❸ Remove the screws securing the battery modules.

❹ Remove the battery modules from the battery pack.

❺ Change orientation of battery pack to tower orientation.

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❻ Change the orientation of the UPS to tower orientation.

❼ Install the UPS module and battery pack on the stabilizer brackets.

XLBP

UPS

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❽ Install 4 battery modules into battery pack.

XLBP
UPS

❾ Secure the battery modules of the battery pack with 8 screws.

XLBP
UPS

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❿ Secure the battery compartment door to the battery pack with 6 screws.

XLBP
UPS

⓫ Rotate the LCD of UPS module 90 degrees to the right.

XLBP

UPS

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⓬ Install the front bezel ofUPS module.

XLBP
UPS

⓭ Install the front bezel of battery pack.

XLBP
UPS

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Front Panel Features
❶ Front bezel
❷ LCD module

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Rear Panel Features
Note: Refer to the table “Key to identify rear panel features” on page 22, that provides a key to the call out numbers for the
rear panel graphics depicted in this manual.
This picture is for reference only. The physical object may be different.

❷❹ ❺⓫ ❽ ❾ ❼

❶
❸

⓭ ⓬ ⓯ ⓮ ⓮ ⓰ ⓯

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Key to identify rear panel features
The Emergency Power Off (EPO) terminal allows the user to connect the UPS to a central
❶ EPO terminal
EPO system.
Maintenance bypass signal. Connect MBS cable to UPS before maintenance switch turned
❷ MBS terminal
on. Pull out the MBS terminal when necessary to maintain the UPS.
Battery temperature sensor.
❸ BAT_T terminal
Connect the battery pack temperature sensor cable between ❸ and ⓭.
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
❹ RS232 port 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.
Input/Output
❼ Remove the cover to connect input and output wires to the hardwire terminal blocks.
hardwire terminals
Output socket with
❽ Connect electronic devices to these outlets.
circuit breaker.
❾ Battery Connector External Battery input connector.
❿ Smart Slot The Smart Slot can be used to connect optional management accessories.
⓫ Ground screw 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 screw Connect to ground.
⓰ Battery Fuse 2 nos. of 100 A / 500 Vdc fuse.

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Hardwire the UPS
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.

CAUTION
RISK OF ELECTRIC SHOCK
• Adhere to all national and local electrical codes.
• All electrical work must be performed by qualified electrician.
• Turn off all power to this equipment before working on the equipment. Practice lockout/tagout
procedures.
• Always connect the UPS to a grounded outlet.
• Do not wear jewelry when working with electrical equipment.
• Ensure that line, neutral and ground cables of the input and output terminals are connected.
• Actual wire size must comply with required amp capacity and national and local electrical codes.
• Recommended input terminal screw torque: 4.5 Nm (40 lb-in).
• All openings that allow access to UPS hardwire terminals must be covered.
• Select wire size and connectors according to national and local codes.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.

CAUTION
RISK OF FIRE
The UPS must be wired into a branch circuit, equipped with a circuit breaker rated as recommended in
this manual.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.

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1. Install a utility circuit breaker in accordance with local electrical codes.
2. Switch the utility circuit breaker OFF, to be sure that the UPS is isolated before working on it.
3. Locate the hardwire terminal block cover on the rear panel of the UPS.
4. Remove the screws securing the cover and remove the cover.
5. Remove the appropriate jumpers for input power source compatibility and output wiring options. Refer to “Wiring
specifications” on next page in this manual.
6. Insert the cables through the cable holes to the terminal blocks. Connect the ground wire first before connecting any
other wire. Refer to “Wiring specifications” on next page in this manual.
7. Use an appropriate strain relief (not supplied), on the hardwired input and output power cables.
8. Replace the hardwire terminal block cover removed in step 3.

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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 wire jumpers between each 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

Mains Input Hardwire

Single-Phase: Wire to L1-Mains, N-Mains, and Single-Phase: Wire to L1, N, and
Three-Phase: Wire to L1-Mains, L2-Mains, L3-Mains, Three-Phase: Wire to L1, L2, L3, N , and
N-Mains, and
Bypass Input (optional)
Single-Phase: Wire to L1-Bypass, N-Bypass
Three-Phase: Wire to L1-Bypass, L2-Bypass, L3-Bypass,
N-Bypass

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

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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 not required not required 16 mm2 16 mm2
68.2 A
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 rated for specifications listed in these tables.
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.

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Input / Output Wiring Options
CAUTION
RISK OF ELECTRIC SHOCK AND EQUIPMENT DAMAGE
• All electrical work must be performed by a qualified electrician.
• Turn off all power to this equipment before working on the equipment. Practice lockout/tagout
procedures.
• Do not wear jewelry when working with electrical equipment.
Failure to follow these instructions can result in equipment damage and minor or moderate injury.
Input/Output wiring overview: Refer to the diagrams on the following pages for input/output wiring options.

Input Neutral Bypass L1

Bypass Neutral Mains L1

Output Neutral Bypass L2

Output L3 Mains L2

Output L2 Bypass L3

Output L1 Mains L3

Output Ground Input Ground

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Jumpers illustration:

SJ1 SJ2 SJ3 SJ4

SJ5 SJ6 SJ7

SJ8

Input/Output Jumper configurations

Power I/O Output
Separate Bypass Input Jumpers
Configuration Jumpers
Input:Output Feed
SJ1 SJ3 SJ4 SJ5 SJ6 SJ7 SJ8 SJ2
1:1* No

1:1 Yes

3:1 No

3:1 Yes

3:3 No

3:3 Yes

*Factory Default

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Input wiring 1:1 single feed (Factory Default) Input wiring 1:1 dual feed

SJ2
SJ2 SJ5
SJ3 SJ4

Input wiring 3:1 single feed Input wiring 3:1 dual feed

SJ2
SJ2 SJ6
SJ7 SJ8

Input wiring 3:3 single feed Input wiring 3:3 dual feed

SJ1 SJ1 SJ1

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Wiring Options for Parallel Operation of UPS
Wiring specification:

Mains circuit SRTG15KXLI SRTG20KXLI MBS

Number
Current Current Current Wire Wire
of Wiring Voltage Wire Size Wire Size
Full Load Full Load Full Load Size Size
Phases (typical) (typical)
(maximum) (maximum) (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/N 248.2 A 120 mm2 100.2 A 25 mm2 124.1 A 35 mm2
380/400/415
Input 83 A each 33.5 A each 41.5 A each
Single L2/L3 VAC 25 mm2 25 mm2 35 mm2
3:1 phase phase phase
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
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 380/400/415 25 mm2 10 mm2 16 mm2
Input phase phase phase
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 mains Bypass

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Emergency power off wiring
(Take 4 parallel units as an example)
Using NO contacts:

UPS1

UPS2

UPS3

UPS4

Using NC contacts:

UPS1

UPS2

UPS3

UPS4

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Communication cable wiring
(Take 4 parallel units as an example)

UPS1

UPS2

UPS3

UPS4

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UPS Display Interface
❶ Alert LED
❷ Battery status icon ❿ ⓫ ⓬ ⓭

❸ DOWN button
❶
❹ UP button
❾ ONLINE
❺ OK button ONLINE
❻ ESC button OUTPUT
OUTPUT OUTPUT
OUTPUT
❽
❼ Load icon
LOAD
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 Mains 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.

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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 from Bypass mode
to Battery mode if mains power is not available.
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 consideration 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.

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.

Menu overview

The display interface has Standard and Advanced menu screens. The preference for Standard or Advanced menu selections is
made during initial installation and can be changed at any time through the Configuration menu.
The Standard menus include the most commonly used options. The Advanced menus provide additional options.
Note: Actual menu screens may differ by model and firmware version. Refer to the UPS Operation Manual for menu
configuration details.

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 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.

User Document Link

Refer the link or scan the QR code to access the user documentation:
SRTG15KXLI SRTG20KXLI
https://d.go2se.com/SRTG15KXLI https://d.go2se.com/SRTG20KXLI

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, 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 990-6203A
06/2023

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