LEGRAND 10 KVA, 15 KVA, 20 KVA, 40 KVA, 60 KVA Installation Manual
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KEOR T 10 – 60 KVA
INSTALLATION MANUAL
II
Important Notices!
Thank you for choosing LEGRAND UPS System to supply your Critical Application.
This manual contains important information about commissioning, usage and technical properties of the UPS. It also
contains safety information for operator and instructions to secure your critical load. Applying the recommendation
detailed in this manual is necessary to use UPS safely and correctly.
Units that are labelled with a CE mark comply with the Standard: EN 62040-1 and EN 62040-2.
Read the manual completely before working on this equipment!
Keep this manual in UPS’s front cover’s pocket for easy consultation!
Reproduction, adaptation, or translation of this manual is prohibited without prior written permission
of LEGRAND Company, except as allowed under the copyright laws.
The manufacturer reserves the rights to change the technical specifications and design without notice.
LEGRAND reserves the rights to change the information in this document without notice.
III
Description of the Symbols Used in the Manual
Description of the Abbreviations Used in the Guide
UPS: Uninterruptible Power Supply
ESD: Emergency Switching Device
RS232: Serial Communication Protocol
RS485: Serial Communication Protocol
MODBUS: Modicon Communication Protocol
SNMP: Simple Network Management Protocol
V: Voltage
A: Ampere
P: Power
For Mains Supply, Auxiliary Mains Supply, Output, Battery Circuit Breaker and Maintenance Bypass Circuit Breaker;
“ON”: Closing the Circuit
“OFF”: Opening the Circuit
This symbol points out the instructions which are especially important.
This symbol points out the risk of electric shock if the following instruction is not followed.
This symbol points out the instructions, which may result with injury of the operator or damage of the
equipment if not followed.
All packing material must be recycled in compliance with the laws in force in the country where the
system is installed.
IV
Installation & Operating Manuals
Battery Fast Fuses
V
INDEX
1. FOREWORD ........................................................................................................................................ 1
1.1. Overview ..................................................................................................................................... 1
1.2. Manual ........................................................................................................................................ 1
2. WARRANTY ......................................................................................................................................... 3
2.1. Terms of Warranty ...................................................................................................................... 3
2.2. Out of Warranty Terms and Conditions ...................................................................................... 3
3. SAFETY ................................................................................................................................................ 4
3.1. Description of the Symbols Used on the Labels Applied to the UPS .......................................... 4
3.2. Individual Protective Gear ........................................................................................................... 4
3.3. Important Notice for UPS ............................................................................................................ 5
3.4. Important Notice for Battery ...................................................................................................... 6
3.5. Emergency interventions ............................................................................................................ 6
4. REQUIREMENT ................................................................................................................................... 7
4.1. Transportation ............................................................................................................................. 7
4.2. Placement .................................................................................................................................... 7
4.3. Storage ........................................................................................................................................ 9
4.4. Electrical Requisites ..................................................................................................................... 9
5. INSTALLATION .................................................................................................................................. 11
5.1. Models and Dimensions ............................................................................................................ 11
5.2. Unpacking Procedure ................................................................................................................ 12
5.3. Installation Procedures and Instructions .................................................................................. 13
8. COMMUNICATION ........................................................................................................................... 31
8.1. Serial Communication (RS232) .................................................................................................. 32
8.2. Internal SNMP Communication................................................................................................. 33
8.3. Emergency Switching Device and Generator Connections ....................................................... 34
8.4. Dry Contacts .............................................................................................................................. 35
8.5. RS485 ......................................................................................................................................... 36
Appendix-1: Technical Specifications .................................................................................................. 37
Appendix-2: Modbus List ..................................................................................................................... 39
Appendix-3: Description of UPS and Block Diagram ........................................................................... 41
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1. FOREWORD
1.1. Overview
Thank you for choosing LEGRAND UPS Keor T product.
KEOR T has been designed with advanced technologies and the latest components generation; realized to satisfy both
users and installers in their operational needs of high availability and performance.
This UPS aims to be efficient, functional, safe and very easy to install and use. LEGRAND has studied the best way to
reconcile high-tech performance and ease of use, making “user friendly” technologically advanced products.
KEOR T supplies maximum protection and power quality for any type of IT load, tertiary application, lighting or building.
Furthermore, standards deployed by Legrand for R&D, supplier selection and manufacturing complies with the highest
quality standards. This product is manufactured in an ISO 9001 & ISO14001 certified factory in full compliance with the
eco-design laws. The UPS Keor T system is made in compliance with the existing European Community directives and
with the technical standards in force to comply with CE marking as certified by the Declaration of Conformity issued by
the Manufacturer.
Technology & Architecture
A special feature of Keor T is Online Double Conversion Operation (VFI-SS-111 as defined by the reference standard EN
62040-3) based on the capacity to supply a voltage that is perfectly stabilized in frequency and amplitude, even in event
of extreme alterations of mains power supply.
The 3-Level Switching Technology used in this product is the latest solution to provide high energy efficiency even with
low load conditions.
The energy efficiency performance of Keor T surpasses the minimum requirements defined by the Code of Conduct on
Energy efficiency and Quality of European of AC UPS defined by EC.
KEOR T represents the best solution combining high performance, low management costs and ease of operation and
maintenance:
• Dual Input
• User friendly touch screen design
• UPS via LED bar (with traffic light coding) gives an immediate diagnosis of the system under any conditions.
• Internal Battery option as well as wide range external battery cabinets.
• Isolation transformer can be mounted inside UPS cabinet upon request.
• Integrated Maintenance Bypass
• Parallelable to increase the power
• Availability of different communication types
1.2. Manual
• The purpose of this manual is to provide indications for using the equipment safely and to carry out first level of
troubleshooting.
• This manual is addressed to persons already educated on precautions to adopt in face of electrical hazard
• This manual is addressed to “User“, generic term to identify all persons that will have the need and / or obligation
to provide instructions or operate directly this UPS equipment
• Adjustments, preventive and curative maintenance jobs are not dealt with in this manual as they are reserved
exclusively to skilled and authorized Legrand UPS Technical Service Engineers.
• The intended use and configurations envisaged for the equipment are the only ones allowed by the Manufacturer;
do not attempt to use the equipment in disagreement with the indications given. Any other use or configuration
must be agreed and written by the Manufacturer, in such a case, will be an enclosure to the manual.
• For its use the user must also comply with the specific laws in force that exist in the country where the equipment is
installed. Reference is also made in this manual to laws, directives, etc., that the user must know and consult in
order to fulfil the purposes established by the manual.
• If information is exchanged with the Manufacturer or assistance personnel authorized by the former, please refer to
the equipment’s rating plate data and serial number.
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• The manual must be kept for the equipment’s useful life cycle and, if necessary (e.g. damage which prevents it being
consulted even partially) the user must ask the Manufacture for a new copy, quoting the publishing code on the
cover.
• The manual reflects the state of the art at the moment the equipment was put on the market, of which it is an
integral part. The publication complies with the directives in force at such a date. The manual cannot be considered
inadequate if updates of standards or changes are made to the equipment.
• Any integration to the manual which the Manufacturer deems fitting to send to the users must be kept with the
manual, becoming an integral part of it.
• The Manufacturer is available to its clientele to provide additional information and will take into consideration any
suggestions made to improve this manual to bring it even closer to the requirements for which it was drawn up.
• If the equipment is sold, which always includes handing over this operating manual, the primary user must notify
the Manufacturer, giving him the address of the new user so the latter can be reached if there are any
communications and/or updates deemed indispensable.
Units that are labelled with a CE mark comply with the Standard: EN 62040-1 and EN 62040-2.
Read the manual completely before working on this equipment!
Keep this manual in UPS’s front cover’s pocket for easy consultation!
Reproduction, adaptation, or translation of this manual is prohibited without prior written permission
of LEGRAND Company, except as allowed under the copyright laws.
The manufacturer reserves the rights to change the technical specifications and design without notice.
LEGRAND reserves the rights to change the information in this document without notice.
3
2. WARRANTY
2.1. Terms of Warranty
• Warranty period begins from the date of commissioning of the UPS by authorized LEGRAND UPS Technical Service
staff or authorized LEGRAND distributor Technical Service Staff.
• The UPS including all the internal parts is under the warranty of LEGRAND.
• If the UPS malfunctions because of component, manufacturing or installation (if it’s done by authorized LEGRAND
UPS Technical Service Personnel) problems during the warranty period, the UPS will be repaired (spares and labour)
by the Manufacturer under warranty.
2.2. Out of Warranty Terms and Conditions
This Warranty does not apply if:
• UPS not commissioned or maintained by an authorized LEGRAND UPS Technical Service staff or an authorized
LEGRAND distributor Technical Service staff
• UPS not used according the terms of operating and installation manual
• Product serial number label has been removed or lost
This Warranty does not cover any defects or damages caused by:
• Neglect, accident, misuse, misapplication
• Failure due to fortuitous circumstances or force majeure (lightning, floods…etc.),
• Unloading and transportation damage and failures after delivery,
• Damage or injuries caused by negligence, lack of inspection or maintenance, or improper use of the products,
• Faulty electrical wiring,
• Defects arising either from designs or parts imposed or supplied by the purchaser,
• Defects and damage by fire and lightning,
• Failures due to modification in the products without LEGRAND approval,
• Improper installation, testing, operation, maintenance, repair, alteration, adjustment, or modification of any kind by
unauthorized personnel,
The Manufacturer will repair the device in such cases for a fee and is not responsible for the shipment of the
equipment.
The Battery warranty does not apply if the temperature in the room exceeds 25 °C.
Extended battery warranty does not apply if:
• UPS has not been commissioned
• A yearly preventive maintenance visit has not been performed
By an authorized LEGRAND UPS Technical Service staff or authorized LEGRAND distributor Technical Service staff.
The UPS may contain batteries that should be recharged 24Hours min after 6 month storage duration to avoid deep
battery discharge. Warranty cannot apply on batteries that have suffered of deep discharge.
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3. SAFETY
3.1. Description of the Symbols Used on the Labels Applied to the UPS
3.2. Individual Protective Gear
There is a high risk of electrical shock with the equipment as well as a considerable short circuit current. When installing
and servicing the equipment it is absolutely forbidden to work without the protective gear mentioned in this paragraph.
The personnel who are going to work with the equipment for installation or maintenance jobs must not wear clothes
with baggy sleeves or laces, belts, bracelets or other metal items that could be a hazard source.
The following indications summarize the protective gear to wear.
Information related to safety of the UPS, battery, load and the user is summarized below. But the
equipment should not be installed before reading the manual completely.
PE: PROTECTIVE EARTH
PB: PROTECTIVE BOUNDING
DANGER! HIGH VOLTAGE (BLACK/YELLOW)
This symbol points out the instructions, which may result with injury of the operator or damage of the
equipment if not obeyed.
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3.3. Important Notice for UPS
• The equipment may only be installed and commissioned by authorized LEGRAND UPS Technical Service Personnel.
• This manual contains important instructions that you should follow during installation and maintenance of the UPS
and batteries. Please read all instructions before installing the equipment and save this manual for future reference.
• Not obeying the instructions written on this manual which may result with possible injury of the operator or
damage of the equipment.
• The equipment shall be packed properly during transportation and proper equipment should be used for
transportation. Never transport in horizontal position.
• The UPS must always stands in a vertical position. Make sure that the floor can support the weight of the system.
• Connect the PE ground connector before connecting any other cable.
• UPS is designed for indoor use. To reduce the risk of fire or electric shock, install this UPS in a temperature and
humidity controlled indoor environment, free of conductive contaminants. Ambient temperature must not exceed
40°C (104°F). Do not operate near water or excessive humidity (95% maximum without condensation).
• UPS requires 3Ph-N+PE input connection.
• Do not connect the output neutral to the protective ground or protective bounding (except the TNC Option). Keor T
does not modify the neutral arrangements of the system; the use of an isolation transformer is required should it
be necessary to modify the neutral arrangements downstream Keor T.
• KEOR T must be protected from voltage surge with devices that are suited to the installation; the mains voltage
surge must be limited to 2kV. These protective devices must be sized to take into account all the installation
parameters (geographical position whether or not there is a lightning rod, whether or not there are other
suppressors in the electrical installation, etc )
• Even when connections removed, residual voltages of capacitors and/or high temperature may exist on connection
terminals and inside the UPS. Before working on terminals, check between all the terminals included PE that no
hazardous voltages exist.
• The connections shall be made with cables of appropriate cross-section in order to prevent the risk of fire. All
cables shall be of insulated type and shall not be laid out on the walking path of the persons.
• Contact your local recycling or hazardous waste center for information on proper disposal of the used battery or
UPS.
• Make sure that the UPS is not overloaded to provide a higher quality supply to the loads.
• In case of an extraordinary situation (damaged body, cabinet or connections, penetration of foreign materials into
the body or cabinet etc.) de-energize the UPS immediately and consult to the LEGRAND Technical Assistance Center.
• When used for particular applications such as life support systems or any other application where product failure is
likely to cause substantial harms to person, we would advise you to contact LEGRAND UPS to confirm the ability of
these products to meet the requested level of safety, performance, reliability and compliance with applicable laws,
regulations and specifications.
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3.4. Important Notice for Battery
• The batteries may only be installed and commissioned by authorized LEGRAND UPS Technical Service Personnel.
• Make sure that the battery qty is proper for the unit and they are same type and capacity. Otherwise danger of
explosion and fire is within the bounds of possibility.
• Do not dispose of batteries in a fire. The batteries may explode.
• Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes. It may be toxic.
• In case of electrolyte in contact with skin, immediately wash the contaminated skin with water.
• Replaced batteries must be disposed of at authorized battery waste disposal centers.
• A battery can present risk of electric shock and high short circuit currents.
The following precautions should be observed when working on batteries;
Remove rings, watches, necklaces, bracelets and all metal objects.
Only use tools with insulated handles.
Wear rubbers gloves and a rubber apron when handling batteries.
Do not lay tools or metal parts on top of batteries.
Eye protection should be worn to prevent injury from accidental electrical arcs.
• Before a maintenance or repair work on the UPS;
Switch the input, output and battery circuit breakers (Q1, Q2 and F5) to “OFF” position.
If UPS has internal batteries; Remove + battery (red) and N battery neutral (blue) cables.
If UPS has external batteries; also switch the circuit breakers of the battery cabinet to “OFF” position.
Determine if the battery is inadvertently grounded. If inadvertently grounded; remove source of
ground. Contact with any part of a grounded battery can result in electrical shock.
• Battery fuses shall only be replaced with the same rating and type which came along with the UPS.
3.5. Emergency interventions
The following information is of a general nature. For specific interventions please consult the laws existing in the
country where the equipment is installed.
First aid interventions
If any first aid intervention is required, comply with company rules and traditional procedures.
Fire-prevention measures
Never use water to extinguish fire but only the extinguishers designed specifically for electronic equipment or battery
fires.
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4. REQUIREMENT
4.1. Transportation
4.2. Placement
This product meets the safety requirements for devices to be operated in restricted access locations according to EN
60950-1 safety standard, which states that the owner should guarantee the following:
• Access to the equipment can only be gained by service persons or by users who have been instructed about the
reasons for the restrictions applied to the location and about any precautions that shall be taken and,
• Access is through the use of a tool or lock and key, or other means of security and is controlled by the authority
responsible for the location.
• UPS is not designed for outdoor application.
• The equipment and the batteries should not be exposed to direct sunlight or placed near to a heat source.
• Recommended operating temperature and humidity values are listed on the
Appendix-1 Technical Specifications.
• Avoid dusty environments or areas where dust of conductive or corrosive materials is present.
• The connection and the circuit breakers are at the front of UPS. Leave access at the front of the UPS for
maintenance. (Refer to Figure.4.2-3)
• Air outlets of the UPS are at the front, back and on both sides. Leave access at the front side, back side and from
both lateral sides for ventilation and battery replacement. (Refer to Figure.4.2-1, 4.2-2 and 4.2.-3)
• Recommended environmental humidity condition is between 20-95% (non-condensing).
Environment Requirement
Model (kVA) 10 15 20 30 40 60
Max. dissipation at full load
(W) 470 705 940 1410 1880 2820
(BTU) 1604 2406 3207 4811 6415 9622
Storage temperatures -25/+55 °C (-13/131 °F) (15-25 °C for maximum battery life)
Working temperature 0/40 °C (32/104 °F) (15-25 °C for maximum battery life)
Maximum relative humidity 95% max. without condensation
Maximum altitude without derating 1.000 m (3.300 ft)
Degree of protection IP 20 (other IP as option)
Colour cabinet RAL 7016@enclosure RAL 9005@front door metal
Table.1
The UPS must be placed and stand in a vertical position throughout the transportation.
Use suitable equipment to remove the UPS from the pallet.
The equipment shall be packed properly during transportation. Therefore it is recommended to keep
the original package for future need.
All packing material must be recycled in compliance with the laws in force in the country where the
system is installed.
Optimal battery life time is reached when battery ambient temperature is kept between 15°C and
25°C. Operating battery at 30°C ambient temperature compared to 20°C will divide by factor 2 battery
life time. Room thermal management as specified above is then necessary to avoid battery life time
reduction. The Battery warranty does not apply if the temperature in the room exceeds 25°C.
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Climatization Ventilation
Direction of ventilation is front/sides to back.
The room should be equipped with ventilation system or air conditioning to collect warm air from the top of the room
and provide cool air at the bottom.
ROOM LAYOUT RECOMMENDATION TABLE
A (mm) B (mm) C (mm) D (mm)
700 500 250
10-30kVA : 500 (for maintenance and internal battery installation)
40-60kVA : 700 (for maintenance and internal battery installation)
Figure.4.2-3
Figure.4.2-1
Figure.4.2-2
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4.3. Storage
Please store the UPS in an environment where the temperature is between -25°C + 55°C, no receipt of direct sunlight,
far from the heating, in a dry place.
Environmental humidity must be between 20-95% (non-condensing).
Recommended storage temperature, humidity and altitude values are listed on the
Appendix-1 Technical Specifications
section.
If the batteries will be stored for longer than 6 months, they shall be charged periodically. Charge period depends on
the storage temperature, as shown below:
Every 9 months if the temperature is below 20°C,
Every 6 months if the temperature is between 20°C and 30°C,
Every 3 months if the temperature is between 30°C and 40°C,
Every 2 months if the temperature is over 40°C
For long storage duration; please follow up the instructions of installation described in
Section 5, start-up UPS
described in
Section 6 and charge the batteries at least 10 hours.
4.4. Electrical Requisites
The installation must comply with national installation regulations.
The electrical distribution panels for common mains supply voltage and auxiliary mains supply voltage inputs must have
a protection and disconnection system. Disconnection devices used in these panels shall disconnect all line conductors
simultaneously. The following table shows the recommended size of common mains supply voltage and auxiliary mains
supply voltage input protection devices (thermal, magnetic and differential) and the cable cross-sections for the linear
loads.
In order to profit from optimal ventilation, the side panels must remain in place for UPS with internal
battery.
The UPS should be mounted on a concrete surface and non-combustible surface.
When dual inputs is used:
• Separate Neutral conductor is necessary to be supplied for each input: Common Mains Input and
Auxiliary Mains Input
• The two inputs should be supplied by the same MV/LV transformer source. If this is not the case, an
insulation transformer should be added in the auxiliary mains line upstream the UPS.
• Separate protection is necessary for each input line.
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Installation Parameters
Model (kVA) 10 15 20 30 40 60
Phase in/out 3Ph+N/3Ph+N
Rated output apparent power (kVA) 10 15 20 30 40 60
Rated output active power (kW) 9 13,5 18 27 36 54
Rated input current (A) at 400V nominal input
voltage
14 21 28 42 57 84
Maximum input current (A) at 340V input voltage +
full load + battery charging
18 27 36 54 72 105
Rated bypass current (A) at 400V nominal input
voltage
15 22 29 44 58 87
Maximum bypass current (A) at 400V, 125%
overload 10 min
19 28 36 55 73 109
Inverter output current @ 400V (A) 15 22 29 44 58 87
Maximum Inverter output current (A) at 400V, 125%
overload 10 min
19 28 36 55 73 109
Overload tolerated by the inverter (with
mains power present) (kW)
10 min 11,3 16,9 22,5 33,8 45 67,5
1 min 13,5 20,3 27 40,5 54 81
Recommended Protection Devices – Rectifier –
D curve circuit breaker (A) (3-pole) 20 25 40 50 63 100
GG fuse (A) 20 25 40 50 63 100
Recommended Protection Devices – General Bypass –
D curve circuit breaker (A) (3-pole) 20 25 40 50 63 100
Protection Devices – Battery Fast Fuse –
Ferrule style high speed fuses and with indicating
striker
25 32 50 63 80 100
Recommended Protection Devices – Output –
C curve circuit breaker (A) * (3-pole) ≤4 ≤4 ≤6 ≤10 ≤13 ≤20
Max. Cable Cross-Section for Terminals
Rectifier (mm²) 35
General Bypass (mm²) 35
Output (mm²) 35
Neutral (mm²) 35
Protective
Earth/Bounding
Recommended cross section for ground wire at least half of the section of cable phases
AND shall comply with the standards of the country (for example NFC 15100 in France).
Leakage Current
Protection**
Minimum 300 mA delayed
When used , the residual current earth leakage protection system must be common for
the two AC inputs (common & auxiliary mains) and installed upstream.
Table.2
*Recommended discrimination of UPS downstream distribution with inverter short-circuits current (battery mode).
**Load leakage currents are added to those generated by the UPS. If loads with high leakage currents are present,
adjust this value accordingly. It is recommended to adjust the protective device after measuring the total leakage
current with the UPS installed and operational with the intended load.
During transitory phases (power failure, return and voltage fluctuations) short leakage current peaks may occur. Make
sure that the protection is not activated in such cases.
If the loads have a nonlinear characteristic, the current on the common mains supply voltage and
auxiliary mains supply voltage input and output neutral conductors may have a value that is 1.5-2
times the phase value during operation. In this case, size the neutral cables and the input/output
protection adequately.
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