APC GALAXY 7000 User Manual
MGETM GalaxyTM 7000
250 - 500 kVA
Installation manual
Introduction
Thank you for selecting an APC by Schneider Electric product to protect your electrical equipment.
The MGE
We recommend that you take the time to read this manual to take full advantage of the many features of your UPS
(Uninterruptible Power System).
TM
GalaxyTM 7000 range has been designed with the utmost care.
APC by Schneider Electric pays great attention to the environmental impact of its products.
Measures that have made MGE
◗ the eco-design approach used in product development,
◗ the elimination of harmonic disturbances reinjected into the AC source,
◗ production in an ISO 14001 certified factory,
◗ recycling of the MGE
TM
TM
GalaxyTM 7000 a reference in environmental protection include:
GalaxyTM 7000 at the end of its service life.
To discover the entire range of APC by Schneider Electric products and the options available for the MGE
range, we invite you to visit our web site at www.apc.com or contact your local representative.
TM
GalaxyTM 7000
34020846EN/AD - Page 2
All products in the MGETM GalaxyTM 7000 range are protected by patents. They implement original technology not available to
competitors of APC by Schneider Electric.
To take into account evolving standards and technology, equipment may be modified without notice. Indications concerning
technical characteristics and dimensions are not binding unless confirmed by APC by Schneider Electric.
This document may be copied only with the written consent of Schneider Electric or its affiliated companies. Authorised copies
must be marked
TM
GalaxyTM 7000 installation manual no. 3402084600".
"MGE
Safety rules
Safety of persons
The UPS must be installed in a room with restricted access in compliance with standard IEC 60364-4-482).
Only qualified personnel are authorised to enter this restricted access room.
A UPS has its own internal power source (the battery). Consequently, the power outlets may be energised even if the UPS is
disconnected from the AC-power source.
Dangerous voltage levels are present within the UPS. It should be opened exclusively by qualified service personnel.
The UPS must be properly earthed.
The battery supplied with the UPS contains small amounts of toxic materials. Caution, replacement of the battery
by a battery of the wrong type can result in an explosion.
To avoid accidents, the instructions below must be observed.
◗ Never operate the UPS if the ambient temperature and relative humidity are higher than the levels specified in the
documentation.
◗ Never burn the battery (risk of explosion).
◗ Do not attempt to open the battery (the electrolyte is dangerous for the eyes and skin).
◗ Comply with all applicable regulations for the disposal of the battery.
◗ Caution, wait five minutes before opening the UPS to allow the capacitors to discharge.
◗ Caution, there is high leakage current: the earthing conductor must be connected first and disconnected last.
◗ The product must be installed on a non-inflammable surface (e.g. concrete).
◗ Caution, battery replacement must be carried out by qualified personnel.
◗ Isolate the Uninterrptible Power Supply (UPS) before working on the circuits upstream.
◗ The UPS can only be used in a controlled indoor environment.
Safety
Product safety
◗ Protection (circuit breaker/switch disconnector) must be installed upstream and be easily accessible.
◗ Never install the UPS near liquids or in an excessively damp environment.
◗ Never let a liquid or foreign body penetrate inside the UPS.
◗ Never block the ventilation grates of the UPS.
◗ Never expose the UPS to direct sunlight or a source of heat.
◗ When replacing battery cells, use the same type and number of cells.
Special precautions
◗ The UPS connection instructions contained in this manual must be followed in the indicated order.
◗ Check that the indications on the rating plate correspond to your AC-power system and to the actual electrical consumption of all the
equipment to be connected to the UPS.
◗ If the UPS must be stored prior to installation, storage must be in a dry place.
◗ The admissible storage temperature range is -25°C to +45°C
◗ If the UPS remains de-energised for a long period, we recommend that you energise the UPS for a period of 24 hours, at least once every
month. This charges the battery, thus avoiding possible irreversible damage.
◗ The UPS is designed for normal climatic and environmental operating conditions concerning the altitude, ambient operating temperature,
relative humidity and ambient transport and storage conditions.
◗ Using the UPS within the given limits guarantees its operation, but may affect the service life of certain components, particularly that of the
battery and its autonomy. The maximum storage time of the UPS is limited due to the need to recharge its integrated battery.
◗ Unusual operating conditions may justify special design or protection measures:
- harmful smoke, dust, abrasive dust,
- humidity, vapour, salt air, bad weather or dripping,
- explosive dust and gas mixture,
- extreme temperature variations,
- poor ventilation,
- conductive or radiant heat from other sources,
- cooling water containing acid or impurities which may cause scale, silt, electrolysis or corrosion of converter parts exposed to water,
- strong electromagnetic fields,
- radioactive levels higher than those of the natural environment,
- fungus, insects, vermin, etc.,
- battery operating conditions.
The UPS must always be installed in compliance with:
◗
◗ the requirements of standard IEC 60364-4-42: Protection from thermal effects.
◗ standard IEC 60364-4-41: protection against electric shock.
◗ standard IEC 60364-4-482: Electrical installations of buildings.
◗ standard NFC 15-100 (in France).
◗ the requirements of standard IEC 62040-1-2:
34020846EN/AD - Page 3
Foreword
Pictograms
Document
Danger, these instruction are
imperative.
Information, advice, help. LED off
Visual indication LED flashing
Action LED on
Audio signal.
34020846EN/AD - Page 4
APC by Schneider Electric has implemented an environmental-protection policy.
Products are developed according to an eco-design approach.
Substances
This product does not contain CFCs, HCFCs or asbestos.
Packing
To improve waste treatment and facilitate recycling, separate the various packing components.
The cardboard we use comprises over 30% of recycled cardboard.
Sacks and bags are made of polyethylene.
Packing materials are recyclable and bear the appropriate identification symbol .
Materials Abbreviation Number
in the symbol
Polyethylene terephthalate PET 01
High-density polyethylene HDPE 02
Polyvinyl chloride PVC 03
Low-density polyethylene LDPE 04
Environment
Polypropylene PP 05
Polystyrene PS 06
Follow all local regulations for the disposal of packing materials.
End of life
APC by Schneider Electric will process products at the end of their service life in compliance with local regulations.
APC by Schneider Electric works with companies in charge of collecting and eliminating our products at the end of their
service life.
Product
The product is made up of recyclable materials.
Dismantling and destruction must take place in compliance with all local regulations concerning waste.
At the end of its service life, the product must be transported to a processing centre for electrical and electronic waste.
Make the product unusable by cutting the internal supply cables.
Battery
The product contains lead-acid batteries that must be processed according to applicable local regulations concerning
batteries.
The battery may be removed to comply with regulations and in view of correct disposal.
The "Material Safety Data Sheets" (MSDS) for the batteries are available on our web site*.
(*) For more information or to contact the Product Environmental manager, use the "Environmental Form" on the site:
http://environment.apc.com
34020846EN/AD - Page 5
Contents
1. Installation
1.1 Possible installations .........................................................................................................................10
Single or modular UPS alone .............................................................................................................10
Parallel UPS systems .........................................................................................................................10
Modular UPSs in parallel ...........................................................................................................10
Modular UPSs in parallel with external bypass cabinet .............................................................10
Parallel UPSs with SSC (static-switch cabinet) .........................................................................11
Parallel UPS with SSC and SSC maintenance cabinet ............................................................11
UPS set up as a frequency converter .................................................................................................12
Single UPS ................................................................................................................................12
Parallel UPS systems ................................................................................................................12
1.2 Layout ..................................................................................................................................................13
Dimensions .........................................................................................................................................13
Weights ..............................................................................................................................................13
Floor mounting ...................................................................................................................................14
UPS cabinets ...........................................................................................................................14
SSC ...........................................................................................................................................14
External bypass or SSC maintenance cabinets ........................................................................15
Auxiliary cabinets (empty) ........................................................................................................16
Backfeed cabinet .......................................................................................................................16
Position in room ..................................................................................................................................17
UPS cabinets ............................................................................................................................17
SSCs .........................................................................................................................................17
External bypass cabinets ..........................................................................................................17
Battery / auxiliary cabinets ........................................................................................................17
Ventilation ...........................................................................................................................................18
UPS cabinets ............................................................................................................................18
SSC cabinets ............................................................................................................................18
1.3 Prerequisites .......................................................................................................................................19
UPS currents ......................................................................................................................................19
Recommended upstream protection ..................................................................................................19
Normal AC source ...................................................................................................................19
Bypass AC source ...................................................................................................................19
Recommended maximum downstream protection ............................................................................20
Battery protection ...............................................................................................................................20
Recommended residual-current protection ........................................................................................20
Characteristics of the connection terminals ........................................................................................21
UPS cabinets ............................................................................................................................21
SSCs, SSC maintenance, External bypass cabinets ................................................................21
Power cables for single UPSs ............................................................................................................21
Power cables for parallel UPSs ..........................................................................................................22
Normal AC line and battery .......................................................................................................22
Bypass AC line and load ...........................................................................................................22
1.4 System earthing arrangements .........................................................................................................24
Single UPS system .............................................................................................................................24
TNS upstream, TNS downstream .............................................................................................24
TNC upstream, TNC, TNS or TT downstream installation ........................................................25
IT upstream, IT downstream .....................................................................................................25
Parallel UPSs systems .......................................................................................................................25
34020846EN/AD - Page 6
1.5 Adapting the cabinet according to the neutral point connection ..................................................26
UPS cabinet .......................................................................................................................................26
Contents
SSC cabinet or external bypass cabinet ............................................................................................ 26
1.6 Connecting the power cables ........................................................................................................... 27
Single or modular UPS cabinet .......................................................................................................... 27
250 to 400 kVA ......................................................................................................................... 27
500 kVA .................................................................................................................................... 28
Frequency-converter cabinet ............................................................................................................. 29
250 to 400 kVA ......................................................................................................................... 29
500 kVA .................................................................................................................................... 30
Parallel UPS cabinet .......................................................................................................................... 31
250 to 400 kVA ......................................................................................................................... 31
500 kVA .................................................................................................................................... 32
SSC cabinet ....................................................................................................................................... 33
800 kVA .................................................................................................................................... 33
1200 kVA .................................................................................................................................. 34
2000 kVA .................................................................................................................................. 35
2000 kVA light ........................................................................................................................... 37
External bypass cabinet ..................................................................................................................... 39
800 kVA .................................................................................................................................... 39
1200 kVA .................................................................................................................................. 40
2000 kVA .................................................................................................................................. 41
SSC maintenance cabinet ................................................................................................................. 42
800 and 1200 kVA .................................................................................................................... 42
2000 kVA .................................................................................................................................. 43
1.7 Connecting cabinet ECPs (exposed conductive parts) ................................................................. 44
Interconnect the earths and tie down the wires .................................................................................44
1.8 Connecting the synchronization module ........................................................................................ 44
1.9 Connect the backfeed option ........................................................................................................... 45
Block diagram .................................................................................................................................... 45
Connect the power cables ................................................................................................................. 45
1.10 Connecting the control-wire cables ............................................................................................... 46
Connecting a modular UPS or frequency converter alone. ............................................................... 46
Connecting the UPS units in parallel ................................................................................................. 47
Connecting the modular UPS units in parallel .......................................................................... 47
Connecting the modular UPSs with the external bypass .......................................................... 48
Connecting parallel UPSs with SSC (static-switch cabinet) ..................................................... 49
Connect the components specific to the 2000 kVA light SSC .................................................. 50
Connect the SSC maintenance cabinet .................................................................................... 50
Connecting the EPO function ............................................................................................................ 51
Connecting the dry-contact communication card ............................................................................... 52
1.11 Assembling and connecting the external battery cabinet ........................................................... 53
Assembling the empty battery cabinet ............................................................................................... 53
Mounting the battery circuit-breaker kit ................................................................................... 53
Mounting the shelves ................................................................................................................ 53
Connecting the power cables ............................................................................................................ 54
Connecting the control-wire cables .................................................................................................... 55
Connecting the battery circuit breaker ...................................................................................... 55
Connecting the battery temperature sensor ............................................................................. 56
2. Appendices
34020846EN/AD - Page 7
Contents
2.1 Assembling 2000 kVA SSCs ..............................................................................................................58
2.2 IP 32 option .........................................................................................................................................58
2.3 Electrical characteristics ...................................................................................................................59
Selection of protection devices ...........................................................................................................59
Permissible UPS overloads as a function of time ...............................................................................60
2.4 General characteristics of MGE TM Galaxy TM 7000 UPSs ...........................................................61
Battery characteristics ........................................................................................................................62
2.5 Glossary ..............................................................................................................................................63
34020846EN/AD - Page 8
Contents
34020846EN/AD - Page 9
1. Installation
1.1 Possible installations
Single or modular UPS alone
1
Bypass AC
Normal AC
Parallel UPS systems
(8 units maximum)
Modular UPSs in parallel
Q1 Q5N
2
Q4S
D
A B
C
+
QF1
Q3BP
UPS cabinet (1)
Load
PFC rectifier module A
Inverter module B
Battery chopper C
Static-switch on AC bypass line D
Batteries (2)
1
Bypass AC
Normal AC
Bypass AC
Normal AC
Q4S
D
Q1 Q5N
A B
C
2
+
QF1
1
Q4S
D
Q1 Q5N
A B
C
2
+
QF1
Modular UPSs in parallel with external bypass cabinet
Bypass AC
Bypass AC
Normal AC
Bypass AC
3
1
Q4S
Q1 Q5N
A B
2
+
QF1
1
Q4S
Q3BP ext
D
C
D
Q3BP
Q3BP
Q3BP
Q3BP
Q5N
ext
UPS cabinet (1)
PFC rectifier module A
Inverter module B
Battery chopper C
Static-switch on AC bypass line D
Batteries (2)
Load
UPS cabinet (1)
PFC rectifier module A
Inverter module B
Battery chopper C
Static-switch on AC bypass line D
Batteries (2)
External bypass cabinet (3)
Load
34020846EN/AD - Page 10
Normal AC
Q1 Q5N
A B
C
2
+
QF1
Parallel UPSs with SSC (static-switch cabinet)
1. Installation
Possible installations >
3
Q3BP
Bypass AC
Normal AC
Normal AC
Q4S
1
Q1 Q5N
2
1
Q1
2
A B
+
QF1
A B
+
QF1
D
C
+
QF1
C
-
Q5N
Q5N
Parallel UPS with SSC and SSC maintenance cabinet
3
Q3BP
Bypass AC
Q4S
D
Q5N
UPS1 cabinet (1)
PFC rectifier module A
Inverter module B
Load
Battery chopper C
Batteries (2)
SSC (3)
Static-switch on AC bypass line D
UPS 1 cabinet (1)
PFC module A
Inverter module B
Load
Battery chopper C
Normal AC
Normal AC
1
Q1 Q5N
2
1
Q1
2
A B
C
+
QF1
QF1
A B
C
+
QF1
+
-
Q5N
Batteries (2)
4
QN
QM
SSC (3)
Backup static switch module D
SSC maintenance cabinet (4)
34020846EN/AD - Page 11
1. Installation
Possible installations >
UPS set up as a frequency converter
(with or without battery, maximum eight units)
Single UPS
Normal AC
Parallel UPS systems
Normal AC
Normal AC
2
+
1
Q1 Q5N
A B
2
+
QF1
1
Q1 Q5N
A B
2
+
QF1
1
Q1 Q5N
A B
QF1
+
QF1
C
C
C
Load
Load
UPS cabinet (1)
PFC rectifier module A
Inverter module B
Battery chopper C
Batteries (2)
UPS cabinet (1)
PFC rectifier module A
Inverter module B
Battery chopper C
Batteries (2)
34020846EN/AD - Page 12
1.2 Layout
Dimensions
1. Installation
Layout >
Overall dimensions H x W x D in mm
Unpacked cabinet On pallet cabinet
UPS cabinets in kVA
250 - 300 1900 x 1412 x 855 2027 x 1525 x 970
400 1900 x 1412 x 855 2027 x 1525 x 970
500 1900 x 1812 x 855 2027 x 1925 x 970
SSCs in kVA
800 1900 x 1012 x 855 2027 x 1125 x 970
Weights
1200 1900 x 1412 x 855 2027 x 1525 x 970
2000 1900 x 1412 x 855
2000 light 1900 x 1012 x 855 2027 x 1125 x 970
External bypass or SSC maintenance cabinets in kVA
800 1900 x 1012 x 855 2027 x 1125 x 970
1200 1900 x 1412 x 855 2027 x 1525 x 970
2000 1900 x 1412 x 855 2027 x 1525 x 970
Battery /auxiliary cabinets (mm width)
400 1900 x 412 x 855 2027 x 959 x 970
700 1900 x 712 x 855 2027 x 825 x 970
1000 1900 x 1012 x 855 2027 x 1125 x 970
1400 1900 x 1412 x 855 2027 x 1525 x 970
Weight values are purely indicative.
See the packing labels for the precise weight of the equipment.
UPS cabinets SSC
1900 x 1012 x 855
2027 x 1525 x 970
2027 x 1125 x 970
Power rating in kVA 250 300 400 500 Power rating in kVA 800 1200 2000 2000 light
Max. weight in kg 960 960 1110 1470 Max. weight in kg 450 720 1430 600
External bypass cabinets or SSC maintenance
cabinets
Power rating in kVA 800 1200 2000 Power rating in kVA 400 700 1000 1400
Max. weight in kg 340 450 700 Max. weight in kg 90 135 150 200
For more information on the weight of your system, see the Transport/storage/handling manual (doc. no. 34020840).
Auxiliary cabinets (empty)
34020846EN/AD - Page 13
1. Installation
Layout >
Floor mounting
Normal or false floor.
Dimensions are indicated in millimeters.
UPS cabinets
Top view
855
SSC
800 and 1200 kVA
Top view
250/300/400 kVA : 1412
500 kVA : 1812
250/300/400 kVA : 760
Cable-running zone
290
800 kVA : 1012
1200 kVA : 1412
500 kVA : 1280
Front
33.5
33.5
The four feet of the cabinet are cylindrical, 60
33.5
mm in diameter.
The measurements opposite include the
cabinet cover panels and the door.
33.5
Max. load on floor per square cm for the feet
UPS cabinet
kg/cm2
in kVA
250 9
300 9
400 10
500 13
69.5
Max. load on floor per square cm for the feet
SSCs in kVA kg/cm2
800 4
855
2000 kVA
855
Top view
Cable-running zone
Front
Cable-running zone
870
800 kVA : 1012 x 260
1200 kVA : 1280 x 260
69.5
2474
Cable-running
Front
1200 8
2000 15
2000 light 6
415 385
zone
415415
Cable-running
zone
33.5
33.5
69.5
34020846EN/AD - Page 14
2000 kVA light
.
1. Installation
Layout > Floor mounting
Top view
1012
855
Cable-running zone
430
870
Front
External bypass or SSC maintenance cabinets
800 and 1200 kVA
Top view
800 kVA : 1012
1200 kVA : 1412
33.5
33.5
33.5
69.5
33.5
Max. load on floor per square cm for the feet
External bypass or
kg/cm2
SSC maintenance
cabinet in kVA
800 4
855
2000 kVA
855
Cable-running zone
Front
Top view
415 385
Cable-running
1412
415
zone
Front
800 kVA : 1012 x 260
1200 kVA : 1280 x 260
69.5
Cable-running
zone
33.5
1200 5
2000 8
33.
69
34020846EN/AD - Page 15
1. Installation
Layout > Floor mounting
Auxiliary cabinets (empty)
Top view
855
Backfeed cabinet
Top view
400 : 412
700 : 712
1000 : 1012
1400 : 1412
Cable-running zone
Front
33.5
412
33.5
33.5
33.5
400 mm : 278 x 679
700 mm : 578 x 679
1000 mm : 878 x 679
1400 mm : 1278 x 679
69.5
Max. load on floor per square cm for the feet
Auxiliary
kg/cm2
cabinet in
mm
400 0,9
700 1,2
1000 1,3
1400 1,8
855
281
Front
382
Cable-running zone
69.5
34020846EN/AD - Page 16
Position in room
UPS cabinets
The UPS must be installed in a room with restricted access (qualified personnel only).
>500 mm
1. Installation
Layout >
To ensure correct ventilation, leave nothing
on top of the UPS.
Leave one meter of free space in front of the
UPS for door opening.
SSCs
>600 mm
>300 mm
>600 mm
>1000 mm
Layout example for an SSC with two parallel UPS units
1 2 3 4 5 6 7
The cabinet rests on four cylindrical feet, 60
mm in diameter, positioned in the four corners
of the cabinet to spread the weight.
If 500 mm of free space is not maintained
above the UPS, abnormal temperature rise
may occur.
The UPS can operate correctly back to the
wall, but it is preferable to leave some space
for easier maintenance.
The distance between the bottom panel and
the floor must be less than 10 mm.
Auxiliary cabinet 2 (1)
Battery cabinet 2 (2)
UPS2 cabinet (3)
Auxiliary cabinet 1 (4)
Battery cabinet 1(5)
UPS1 cabinet (6)
SSC (7)
External bypass cabinets
Layout example for an external bypass cabinet with three UPS units
1 2 3 4
Battery / auxiliary cabinets
Layout example for two battery cabinets with one UPS unit
Layout example for two battery cabinets and two auxiliary cabinets in a parallel system with an SSC
1 2 3 4 5 6 7
UPS1 cabinet (1)
UPS2 cabinet (2)
UPS3 cabinet (3)
External bypass cabinet (4)
Battery cabinet 1 (1)
321
Battery cabinet 2 (2)
UPS cabinet (3)
Auxiliary cabinet 2 (1)
Battery cabinet 2 (2)
UPS2 cabinet (3)
Auxiliary cabinet 1 (4)
Battery cabinet 1 (5)
UPS1 cabinet (6)
SSC (7)
34020846EN/AD - Page 17
1. Installation
Layout >
Ventilation
UPS cabinets
Power rating in kVA 250 300 400 500
Air flow (m³/h) 6000 6000 6000 8300
The optimum operating-temperature range is
20 to 25°C.
An operating temperature of 35°C is possible,
but battery life will be reduced.
Size the ventilation system taking into
account the values in the table below.
Heat losses to be
evacuated at Pn
SSC cabinets
Power rating in kVA 800 1200 2000
Air flow (m³/h) 1000 Natural Natural
Heat losses to be
evacuated at Pn
Pn = rated power, for other values please consult the after-sales support or the local office.
kW 14.3 17.2 22.9 27.2
Cal./s 3418 4111 5473 6501
kW 3.7 < 1 < 1.5
Cal./s 884 < 240 < 360
34020846EN/AD - Page 18
1.3 Prerequisites
UPS currents
1. Installation
Prerequisites >
UPS cabinets in kVA I rated of Normal
AC in A
250 351 361 361 490
300 420 433 433 588
400 558 577 577 784
500 700 722 722 980
The table above is for 400 V interphase voltages and a load with a power factor of 0.9.
For other voltages (380 or 415 V), the current values must be multiplied by 1.05 and 0.96 respectively.
The battery current is an average current for a battery voltage of 488 V (44 blocks at 1.85 V/cell each), at Pn with a power
factor of 0.9.
Recommended upstream protection
Normal AC source
Stick a label with the following text on each upstream circuit breaker / switch-disconnector: "Isolate Uninterruptible
Power Supply (UPS) before working on this circuit".
Selection of protective devices is determined by the maximum continuous current (at 380 V).
Protection ratings are calculated for the maximum continuous current (at 380V).
UPS cabinets in kVA CB / switch-disconnector Trip unit
250 NS 630N 3P * STR 23 SE
I rated of Bypass
AC in A
I rated of load
in A
I battery in A
300 NS 630N 3P * STR 23 SE
400 NS 800N 3P * Micrologic 2.0
500 NS 800N 3P * Micrologic 5.0
The circuit breakers / switch-disconnectors recommended above respect the requirements for discrimination with the UPS
fuses.
Depending on the installation, the CB/SD may be replaced by a CB/SD with a higher breaking capacity.
* For short-circuit currents > 40 kA, use a CB/SD with a higher breaking capacity (type L or H).
Bypass AC source
Stick a label with the following text on each upstream circuit breaker / switch-disconnector: "Isolate Uninterruptible
Power Supply (UPS) before working on this circuit".
Selection of protective devices is determined by the maximum continuous current (at 380 V).
Protection ratings are calculated for the maximum continuous current (at 380V).
UPS cabinets in kVA Maximum permissible
250 25 In NS 630N 4P * STR 23 SE
300 21 In NS 630N 4P * STR 23 SE
400 16 In NS 800N 4P * Micrologic 2.0
500 16 In NS 800N 4P * Micrologic 5.0
current for 20 ms
CB / switchdisconnector
Trip unit
The circuit breakers / switch-disconnectors recommended above respect the requirements for discrimination with the UPS
fuses.
Depending on the installation, the CB/SD may be replaced by a CB/SD with a higher breaking capacity.
* For short-circuit currents > 40 kA, use a CB/SD with a higher breaking capacity (type L or H).
34020846EN/AD - Page 19
1. Installation
Prerequisites >
Recommended maximum downstream protection
If these recommendations are not followed, a short-circuit on an output circuit can result in a break in power longer than 20
milliseconds on all the other output circuits.
UPS cabinets in kVA CB / switch-
250 NS 100N
300 NS 100N
400 NS 100N
500 C125N
Depending on the installation, the CB/SD may be replaced by a CB/SD with a higher breaking capacity.
These protective devices ensure discrimination for each circuit downstream of the UPS, with or without a bypass AC input.
Battery protection
UPS cabinets in kVA Battery backup time at
disconnector
C120N
C120N
C120N
C120N
NG 125N
C 125H
NS 160N
NG 125N
Pn
Trip unit
TM D 80
C 80A
B 125A
TM D 80
C 80A
B 125A
TM D 100
C 125A
C 125A
D 125A
TM 160D
D 125
Battery CB/switch-disconnector QF1
Typ e Trip unit magnetic setting in A
250 All NS630 DC MP1 1200
300 ≤ 15 min.
> 15 min.
400 ≤ 5 min.
> 5 min.
500 All C1251N DC P21 1600
Pn = rated power at a power factor of 0.9, for other values please consult the after-sales support or the local office.
See the necessary precautions during connection of circuit breakers / switch-disconnectors in the installation
manual of the battery circuit-breaker enclosure, doc. no. 34021529.
Recommended residual-current protection
Requirements for residual-current protection.
For common normal and bypass AC inputs
- The same residual-current protection may be used for the two lines.
For separate normal and bypass AC inputs
- A transformer is required upstream of either the normal AC line or the bypass AC line.
- Equip each line with a circuit breaker or switch-disconnector with residual current protection.
See “System earthing arrangements”, page 24.
The recommended minimum residual current protection is 3A, provided the conditions defined in IEC364.4-41 are
respected.
NS630 DC
C1251N DC
NS630 DC
C1251N DC
MP1
P21
MP1
P21
1200
1600
1200
1600
34020846EN/AD - Page 20
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