LEGRAND KEOR COMPACT User manual

LE12675AA –2021/03
The copying, redistribution, use or publication of such contents is strictly prohibited without Legrand authorization
KEOR COMPACT
Installation and User Manual

KEOR COMPACT
2
Table of Contents
1. Introduction..........................................................................................................3
2. Regulatory and safety requirements....................................................................9
3. Transportation and placement...........................................................................14
4. Installation..........................................................................................................19
5. Configuration and start-up .................................................................................35
6. Maintenance ......................................................................................................46
7. Warehousing......................................................................................................48
8. Dismantling ........................................................................................................49
9. Mechanical characteristics.................................................................................50
10. Technical data..................................................................................................52
11. Tables…...........................................................................................................56

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1. Introduction
INDICATION
The instructions in this manual are intended for a SKILLED TECHNICIAN (paragraph 2.2.1)
1.1 Purpose of the manual
The purpose of this manual is to provide the skilled technician (see paragraph 2.2.1) with instructions
for safely installing the Keor Compact UPS, also called “equipment” in the rest of the manual and carry
out ordinary maintenance procedures.
Extraordinary maintenance operations are not dealt with because they are the sole preserve of the
LEGRAND Technical Support Service.
The reading of this manual is essential but does not substitute the skill of technical personnel who
must have received adequate preliminary training.
The intended use and configurations envisaged for the equipment as shown in this manual are the only
ones allowed by the Manufacturer.
Any other use or configuration must be previously agreed with the Manufacturer in writing and, in this
case, the written agreement will be attached to the installation and user manuals.
This manual also refers to laws, directives and standards that the skilled technician is required to be
aware of and consult.
The original text of this publication, drafted in English, is the only reference for the resolution of
disputes of interpretation linked to translations into other languages.
1.2 Symbols in the manual
Some operations are shown in graphic symbols that draw the attention of the reader to the danger or
the importance they imply:
DANGER
This indication shows a danger entailing a high degree of risk that, if not avoided, will lead to death or
serious injury or considerable damage to the equipment and things around it.
WARNING
This indication shows a danger entailing a medium degree of risk that, if not avoided, could lead to
death or serious injury or considerable damage to the equipment and the things around it.
CAUTION
This indication shows a danger entailing a low level of risk that, if not avoided, could lead to minor or
moderate injury or material damage to the equipment and the things around it.
INDICATION
This symbol indicates important information which should be read carefully.

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1.3Where and how to keep the manual
This manual must be kept in a safe, dry place and must always be available for consultation
exclusively by the skilled technician.
It is recommended to make a copy of it and file it away.
If information is exchanged with the Manufacturer or the authorized assistance personnel, it is
essential to refer to the equipment’s rating plate data and serial number.
INDICATION
The manuals provided with the equipment are an integral part of it and must therefore be kept for its
entire lifetime. In case of need (for example in case of damage that even partially compromises its
consultation) the skilled technician is required to get a new copy from the Manufacturer, quoting the
publication code on the cover.
1.4Update of the manual
The manual reflects the state of the art when the equipment was put onto the market. The publication
conforms to the directives current on that date. The manual cannot be considered inadequate when
new standards come into force or modifications are made to the equipment.
Any addition to the manual the Manufacturer considers appropriate to send to the users, must be kept
together with the manual of which they will become an integral part.
The version of the manual updated to its latest release is available on the Internet at
hiip://www.ups.legrand.com
1.5Manufacturer's liability and guarantee
The skilled technician and the operator shall scrupulously comply with the precautions and installation
instructions indicated in the manuals. They must:
- always work within the operating limits of the equipment;
- always carry out constant and careful maintenance through a skilled technician who complies with all
the procedures indicated in the installation and maintenance manual.
The Manufacturer declines all indirect or direct responsibility arising from:
- assembly and cabling made by personnel not fully qualified according to national standards to work
on equipment presenting electrical hazards;
- assembly and cabling made without using safety equipment and tools required by national safety
standards;
- failure to observe the installation and maintenance instructions and use of the equipment which
differs from the specifications in the manuals;
- use by personnel who have not read and thoroughly understood the content of the user manual;
- use that does not comply with the specific standards used in the country where the equipment is
installed;
- modifications made to the equipment, software, functioning logic unless they have been authorized
by the Manufacturer in writing;
- repairs that have not been authorized by the LEGRAND Technical Support Service;
- damage caused intentionally, through negligence, by acts of God, natural phenomena, fire or liquid
infiltration;
- damage caused using batteries and protections not specified in the manuals;
- accidents caused by a wrong assembly of the safety protections or due to the lack of application of
the safety labels specified in the installation manual.
The transfer of the equipment to others also requires to hand over all the manuals. Failure to do it will
automatically nullify any right of the buyer, including the terms of the guarantee where applicable.
If the equipment is sold to a third party in a country where a different language is spoken, the original
owner shall be responsible for providing a faithful translation of this manual in the language of the
country where the equipment will be used.

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1.5.1 Guarantee terms
The guarantee terms may vary depending on the country where the UPS is sold. Check the validity
and duration with LEGRAND's local sale representative.
If there should be a fault in the product, contact the LEGRAND Technical Support Service which will
provide all the instructions on what to do.
Do not send anything back without LEGRAND's prior authorization.
The guarantee becomes void if the UPS has not been brought into service by a properly trained skilled
technician (see paragraph 2.2.1).
If during the guarantee period the UPS does not conform to the characteristics and performance laid
down in this manual, LEGRAND at its discretion will repair or replace the UPS and relative parts.
All the repaired or replaced parts will remain LEGRAND's property.
LEGRAND is not responsible for costs such as:
- losses of profits or earnings;
- losses of equipment, data or software;
- claims by third parties;
- any damage to persons or things due to improper use, unauthorized technical alterations or
modifications;
- any damage to persons or things due to installations where the full compliance with the standard
regulating the specific usage applications have not been guaranteed.
1.5.2 Extension of the guarantee and maintenance contracts
The standard guarantee can be consolidated in a single extension contract (maintenance contract).
Once the guarantee period has passed, LEGRAND is available for giving a technical assistance
service able to meet all requirements, maintenance agreements, 24/7 availability and monitoring.
Please, contact the LEGRAND Technical Support Service for further information.
1.6 Copyright
The information contained in this manual cannot be disclosed to any third party. Any partial or total
duplication of the manual by photocopying or other systems, including electronic scanning, which is not
authorized in writing by the Manufacturer, violates copyright conditions and may lead to prosecution.
LEGRAND reserves the copyright of this publication and prohibits its reproduction wholly or in part
without previous written authorization.

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1.7 General UPS description
The UPS systems described in this manual are on-line, double conversion; the inverter included in the
UPS always supplies energy to the load, whether the mains is available or not (according to the battery
autonomy time).
This configuration guarantees the best service to the user, as it supplies clean power uninterruptedly,
ensuring voltage and frequency stabilization at nominal value. Thanks to the double conversion, it
makes the load completely immune from micro-interruptions, from excessive mains variations, and
prevents damage to critical loads.
The UPS uses IGBT technology with a high switching frequency in order to allow a low distortion of the
current re-injected into the supply line, as well as high quality and stability of output voltage. The
components used assure high reliability, very high efficiency and maintenance easiness.
•Rectifier [3]
It converts the three-phase voltage of the AC mains into continuous DC voltage using a three-phase
fully controlled IGBT bridge with a low harmonic absorption.
The control electronics uses a microprocessor of latest generation that allows to reduce the distortion
of the current absorbed by mains (THDi) to less than 5%. This ensures that the rectifier does not distort
the supply mains, with regard to the other loads. It also avoids cable overheating due to the harmonics
circulation.
•Battery charger / Booster [6]
A bi-directional DC/DC converter is placed between the battery and the DC bus.
The converter has a double function. When the mains is present and the rectifier operational the
converter works as battery charger, restoring the energy lost by the battery and keeping it in floating
charge. In case of mains or rectifier failure the battery supplies energy to the inverter through the
converter, which works as booster stage.
As the mains is back the rectifier provides energy to the inverter and the converter restores its function
as battery charger.
13 4
5
2
7
6
X20
X50X10
Mains Input
Battery
Load
Single Input
13 4
5
2
7
6
X20
X50X10
X40
8
Mains Input
Bypass Input
Battery
Load
Dual Inputs

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•Inverter [4]
It converts the direct voltage coming from the rectifier or from the DC battery into alternating AC
voltage stabilized in amplitude and frequency.
The fully digital control of the output sinewave allows to achieve high performances, among which a
very low voltage distortion even in presence of high-distorting loads.
•Battery
The battery can be installed inside or outside the UPS.
The battery is charged every time it has been partially or completely discharged. When its full capacity
is restored, it is kept floating to compensate for any self-discharge.
•Static bypass [5]
The static bypass allows to transfer the load between Inverter and Bypass and vice-versa, in a very
short time, and uses SCR’s as power commutation elements.
•Maintenance bypass [2]
The maintenance bypass is used to cut off the UPS completely, supplying the load directly from the
input mains in case of maintenance or serious failure.
1.7.1 UPS operating modes
The UPS has four main operating modes.
•Normal operation
During normal operation all the circuit breakers/isolators are closed, except for MBP (maintenance
bypass).
The rectifier is supplied by the AC three-phase input voltage, feeds the inverter and compensates
mains voltage as well as load variations, keeping the DC voltage constant. The battery charger keeps
the battery charged (floating or boost charge depending on the battery type). The inverter converts the
DC voltage into an AC sinewave with stabilized voltage and frequency and supplies the load via its
static switch SSB.

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•Bypass operation
The load can be switched to bypass either automatically or manually. The manual changeover can be
performed by display forcing the load to bypass. In case of failure of the bypass line, the load is
switched back to inverter without interruption.
•Battery operation
In case of power failure or rectifier fault, the battery feeds the inverter without interruption through the
booster converter. The battery voltage drops based on the amplitude of the discharging current. The
voltage drop has no effect on the output voltage, which is kept constant by changing the PWM
modulation. An alarm is activated when the battery is near the minimum discharge value.
In case the supply is restored before the battery is completely discharged, the system will be switched
back to normal operation automatically. In the opposite case, the inverter shuts down and the load is
switched to the bypass line. If the bypass line is not available or is out of tolerance, the loads supply is
interrupted as soon as the battery reaches the discharge limit threshold (black-out).
As soon as the supply is restored, the battery charger will recharge the battery. In the standard
configuration, the loads are supplied again via static switch SSB when mains is available again. The
inverter is restarted when the battery has partially restored its capacity.
•Maintenance mode
The maintenance bypass operation is necessary whenever the UPS functionality is tested, or during
maintenance or repair work. During this mode, the UPS is completely shut down and the load is
directly supplied by the bypass line.

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2. Regulatory and safety requirements
DANGER
Before carrying out any operation on the equipment, it is necessary to read the entire manual
carefully, especially this chapter. Look after this manual carefully and consult it repeatedly
during installation and maintenance by a skilled technician.
2.1 General notes
The equipment has been made for the applications given in the manual. It may not be used for
purposes other than those for which it has been designed, or differently from those specified in this
manual.
The various operations must be carried out according to the criteria and the chronology described in
this manual.
2.2 Definitions of “Skilled Technician” and “Operator”
2.2.1 Skilled technician
The professional that will carry out the installation, start up and ordinary maintenance is called “Skilled
Technician”.
This definition refers to people qualified by LEGRAND who have the specific technical qualification and
are aware of the method of installing, assembling, repairing, bringing online and using the equipment
safely.
In addition to the requirements listed in the paragraph below for a general operator, the Skilled
Technician is qualified according to national safety standards to work under dangerous electrical
voltage and uses the personal protective equipment required by national safety standards for all the
operations indicated in this manual (see the examples listed in paragraph 2.3).
INDICATION
The safety manager is responsible for protection and company risks prevention according to what is
indicated in European directives 2007/30/EC and 89/391/EEC regarding safety in the workplace.
The safety manager must ensure that all the people working on the equipment have received all the
instructions concerning them in the manual, especially those contained in this chapter.
2.2.2 Operator
The professional assigned to the equipment for normal use is called "Operator".
This definition refers to people who know how to operate the equipment defined in the user manual
and have the following requisites:
- technical education, which enables them to operate according to safety standards in relation to the
dangers linked to the presence of electric current;
- training on the use of personal protective equipment and basic first aid interventions.
The company safety manager, in choosing the person (operator) who uses the equipment, must
consider
- the person’s work fitness according to the laws in force;
- the physical aspect (not disabled in any way);
- the psychological aspect (mental stability, sense of responsibility);
- the educational background, training and experience;
- the knowledge of the standards, regulations and measures for accident prevention.
He shall also provide training in such a way as to provide thorough knowledge of the equipment and its
component parts.

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Some typical activities the operator is expected to carry out are:
- the use of the equipment in its normal functioning state and the restore of the functioning after it shuts
down;
- the adoption of the necessary provisions for maintaining the quality performance of the UPS;
- the cleaning the equipment;
- cooperation with personnel responsible for ordinary maintenance activities (skilled technicians).
2.3 Personal Protective Equipment
DANGER
The UPS poses a considerable risk of electric shocks and a high short circuit current. During
installation, use and maintenance operations, the equipment mentioned in this section must be used.
People responsible for operating this equipment and/or passing close to it must not wear garments
with flowing sleeves, nor may laces, belts, bracelets or other metal pieces that might cause a danger.
The following list sum up the minimum Personal Protective Equipment to wear always. Additional
requirements may be needed according to national safety standards.
Anti-accident and non-sparking shoes with rubber sole and reinforced toe
Protective gloves for handling operations
Isolated rubber gloves for operations of connection and work under hazardous voltage
Protective garments for electrical work
Protective face and head shield
Isolated tools
INDICATION
The skilled technician must work on electrical insulated carpet and he must not wear any kind of metal
objects like watches, bracelets, etc.

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2.4 Hazard signs in the workplace
The following signs must be exhibited at all points of access to the room where the equipment is
installed:
Electric current
This sign indicates the electrical live parts.
How to proceed in an emergency
Do not use water to quench fires but just the extinguishers specially designed for putting out
fires in electrical equipment.
No smoking
This sign This sign indicates that smoking is not allowed.
2.5 Signs on the equipment
Displayed on the UPS are explanatory plates that can vary depending on the country the equipment is
intended for and constructional standards applied.
Make sure the instructions are adhered to. Removing these plates and working in a way that differs
from what written there, is strictly prohibited.
The plates must always be clearly read, and they must be cleaned periodically.
If a plate deteriorates and/or it is no longer legible, even partially, the Manufacturer must be contacted
for another one.
CAUTION
The plates must not be removed or covered. No other plates may be affixed to the equipment without
the Manufacturer's prior written authorisation
WARNING
Potential risks can be drastically reduced by wearing the Personal Protective Equipment listed in this
chapter, which are indispensable. Always operate with due care around dangerous areas marked by
the appropriate warning notices on the equipment.
2.6 General warnings
DANGER
The UPS works with dangerous voltages. Only skilled technicians qualified and authorized by
LEGRAND must perform the installation and ordinary maintenance operations. No part of the UPS can
be repaired by the operator. Extraordinary maintenance operations must be carried out by LEGRAND
Technical Support Service personnel.
DANGER
Before beginning any installation and/or maintenance operation, make sure that all the DC and AC
power sources are disconnected.
The UPS and the external battery cabinet, if present, must be installed with an earth connection to
avoid high leakage currents. First connect the earthing cable.
Check during each installation and/or maintenance operation the continuity of the earthing system.

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DANGER
The UPS is powered by its own DC energy source (batteries). The output terminals may have a
dangerous voltage even if the UPS is not connected to the AC power network.
Disconnect all batteries before performing any installation and/or maintenance operation.
WARNING
A battery can present a risk of electrical shock and burns by high short-circuit circuit current. Failed
batteries can reach temperatures that exceed the burn thresholds for touchable surfaces. The following
precautions should be observed when working on batteries:
a) remove watches, rings or other metal objects.
b) use tools with insulated handles.
c) wear rubber gloves and boots.
d) do not lay tools or metal parts on top of batteries.
e) disconnect the charging source prior to connecting or disconnecting battery terminals.
f) determine if battery is inadvertently grounded. If inadvertently grounded, remove source from ground.
Contact with any part of a grounded battery can result in electrical shock. The likelihood of such
shock can be reduced if such grounds are removed during installation and maintenance (applicable
to equipment and remote battery supplies not having a grounded supply circuit).
g) never leave live cable terminals without an insulated protection.
h) When replacing batteries, replace with the same type and number of batteries or battery packs.
There
is the risk of explosion if batteries are replaced by an incorrect type.
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.
The batteries installed inside the cabinet must be disposed of correctly. For the disposal requirements
refer to local laws and relevant standards.
INDICATION
The UPS functions with TT, TN-C and TN-S systems. Input/Bypass and output neutral are not
referenced to the same neutral potential.
For TN-C systems, it is necessary to bridge together the input, bypass and output neutral on the
terminals during the installation.
CAUTION
Do not open the battery breakers while the UPS is powering the loads in battery mode.
WARNING
To reduce the risk of fire or electric shock, the UPS must work in closed, clean environments with
controlled temperature and humidity. It must be kept away from inflammable liquids and corrosive
substances. The room temperature must not be above +40°C (+104°F) and the relative humidity must
be a maximum of 95% not condensing.

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CAUTION
Keor Compact 10 kVA is a category C2 UPS product. In a residential environment, this product may
cause radio interference, in which case the user may be required to take additional measures.
All the other models of Keor Compact are products for commercial and industrial application in the
second environment - installation restrictions or additional measures may be needed to prevent
disturbances.
CAUTION
- The equipment must be maintained and used according to the instructions of this manual.
- The departmental manager must instruct the operating and maintenance personnel on the safe use
and maintenance of the equipment.
- Only specifically trained, highly skilled personnel are allowed access to the equipment in order to
perform maintenance. While the maintenance operation is being carried out, signs saying
"Maintenance work in progress" must be affixed in the department in such a way that they can be
easily seen from any access area.
- Any intervention on the equipment must be done only after it has been disconnected from the power
supply network by means of a switch disconnector and must be locked with an appropriate padlock.
- The UPS must not be turned on if liquid is leaking from the batteries.
- The equipment used for any maintenance operations (pliers, screwdrivers etc.) must be electrically
insulated.
- Depositing flammable material near the equipment is strictly forbidden. The equipment should always
be locked, and only specifically trained personnel are allowed access to it.
- Do not disable any safety, notification or warning device and do not ignore any alarm, warning
message or notice, no matter whether they are generated automatically or represented by plates fixed
to the equipment.
- Do not run the equipment with fixed protections not installed (panels etc.).
- In case of breaking, buckling or malfunctioning of the equipment or parts of it, repair or replace
immediately.
- For no reason can the structure of the equipment, the devices mounted on it, the operation sequence
etc., be modified, manipulated or tampered with in any way, without prior consultation with the
Manufacturer.
- When replacing fuses, only use ones of the same type.
- The replacement of the batteries is an operation intended to be carried out by a skilled technician.
- Keep a register in which to enter the date, time, type, performer’s name and any other useful
information about each and any routine and extraordinary maintenance operation.
- Do not use oils or chemical products for cleaning because they could scratch, corrode or damage
certain parts of the equipment.
- The equipment and workplace must be kept completely clean.
- Upon completion of the maintenance operations, before connecting the power supply, carefully check
that no tools and/or material of any kind have been left next to the equipment.
2.7 How to proceed in an emergency
The following information are general. For the specific interventions consult the regulations in force in
the country where the equipment is installed.
2.7.1 First-aid procedures
When administering first aid, adhere to the company rules and the usual procedures.
2.7.2 Fire procedures
Do not use water to quench fires but just the extinguishers specially designed for putting out fires on
electrical equipment.

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3. Transportation and placement
3.1 Visual check
On delivery of the UPS, carefully inspect the packaging and the equipment for any damage that might
have occurred during transport. Check there is no damage to the indicator on the outer label reading
"Shock Watch".
If there is possible or ascertained damage, immediately inform:
- the transporter;
- the LEGRAND Technical Support Service.
Check that the equipment corresponds with the items indicated in the delivery documentation.
If the UPS must be stored, follow the instructions of Chapter 7.
3.2 Equipment check
The equipment and the relative supplied accessories must be in perfect conditions.
Check that:
- the shipping data (address of the recipient, no. of packages, order no, etc.) correspond to what is
contained in the delivery documentation;
- the technical rating plate data on the label applied to the UPS correspond with the material described
in the delivery documentation;
- the documentation accompanying the equipment includes the installation and user manuals.
In case of discrepancy, immediately inform the LEGRAND Technical Support Service before
commissioning the equipment.
INDICATION
The installation manual must be used and consulted only by skilled technicians.

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3.3 Unpacking
To remove the packaging material, comply with the following procedure:
- bring the UPS to the installation site using a forklift and/or a transpallet with suitable characteristics;
- remove the packaging material, cut straps and cardboards protecting the UPS;
- unscrew the fastening rail kits on the right and left side;
- put two fastening rail kits on the pallet edge and make them steady by fastening four screws in the
pallet;

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- remove the UPS from the pallet;
- block the wheel-brakes to fix the UPS;
- raise the wheel-brakes to move the UPS;
Wheel-Brake
Wheel-Brake

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- follow this last step for the final positioning of the UPS;
3.4 Movement
WARNING
The UPS must be placed and stand in a vertical position throughout the transportation. It shall also be
packed properly.
Move the UPS very carefully, lifting it as little as possible and avoiding dangerous swings or falls.
Follow always the directions indicated in the symbols present on the packaging. The equipment must
always be handled by trained and instructed personnel. Comply with the safety regulations in force in
your country relative to the usage of lifting equipment and/or accessories.
The Keor Compact UPS has six wheels at the bottom of the cabinet. Before installations and while it is
still empty, it can be moved by hand by at least two people.
For any lifting, use a forklift or a transpallet with an adequate carrying capacity, placing the forks in the
specific spaces of the base and making sure they come out on the other side by at least twenty
centimetres.
CAUTION
Do not move the UPS after the installation

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3.5 Positioning constraints
The UPS must be positioned respecting the following conditions:
- keep at least 1000 mm of free space in front of the UPS for air flow and future maintenance
purposes;
- keep at least 300 mm of free space in rear of the UPS for air-flow space;
- keep at least 300 mm of free space in the top of UPS for maintenance operations;
- temperature and humidity must be within permitted limits;
- fire regulations must be respected;
- the wiring must be simply made;
- front and rear accessibility must be available for assistance or periodic servicing;
- the cooling flow of air must be guaranteed;
- the air conditioning system must be adequately sized;
- dust, corrosive and explosive atmospheres must be absent;
- the installation site must be free of vibration;
- the support surface must be sized for the weight necessary to support the equipment.
To safeguard the batteries as well as possible it is necessary to bear in mind that their average lifetime
is strongly influenced by the operating room temperature.
Position the UPS in an environment with a temperature range between +20°C (+68°F) and +25°C
(+77°F) to guarantee the optimum life of the batteries.
Before proceeding with the installation operations, make sure that there is enough lighting to clearly
see every detail. Provide artificial lighting if the natural lighting does not satisfy this requirement.
In case of maintenance operations in places that are not sufficiently well lit, portable lighting systems
must be used, avoiding shadows that prevent or reduce visibility on the point where you intend to work
or on the surrounding areas.
Front Side
>1000mm
Rear Side
>300mm
Top Side
>300mm
UPS
Other
Equipment

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4. Installation
DANGER
All UPS installation operations must be carried out exclusively by a SKILLED TECHNICIAN
(paragraph 2.2.1).
4.1 Safety regulations
DANGER
Before carrying out any installation operation you must read and apply the following:
- The UPS has a high leakage current. The earthing connection must be connected before cabling the
UPS input. The switchgear must have a safe connection with the earthing and an adequate
protection as required by the installation standards.
- The UPS must only be installed in a fixed way with a thermal-magnetic circuit breaker placed
upstream of it. Connection to the mains via traditional type plug is not allowed.
- The switchgear or the disconnector switch must be installed near the equipment and must be easily
accessible.
- Do not carry out the installation in presence of water or humidity.
- Open only the UPS panels necessary for the electrical connections. After that, close and fix them.
- Check there is no mains voltage on the equipment.
- Check that the loads are off and disconnected from the UPS.
- Check that the UPS is OFF, and no voltage is present.
- Check that the fuse breakers on the external battery cabinets (if present) are open.
- Check that the mains input voltage and frequency correspond with the values indicated in the
technical data on the UPS rating plate.
- Check that the earthing has been carried out in compliance with IEC (International Electrotechnical
Commission) standards or local regulations.
- Check that the electrical system has been fitted with the necessary differential and thermal-magnetic
protections upstream of the UPS.

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4.2 Views
4.2.1 Rear View
1 2
14
3
4
5
6
18
19
16
17
21
20
2422 23
15
1. Communication Slot 1
2. Communication Slot2
3. Dry Contacts
4. External Battery Temperature Connector
5. RS-232 Port for Setting Software
6. Parallel Communication Ports (Option)
7
8
9
10
11
12
13
7. Communication Selector for
Service Only
8. USB Port for Service Only
9. Terminal Resistor Setting Switch
for Parallel Communication
10. Status LED Indictors
11. EPO
12. Backfeed Protection
13. MBP Detector
14. Manual Bypass Breaker
20. Batt. Working Power
15. Bypass Input Breaker
21. Output Breaker
16. Mains Input Breaker
22. X10/X40: Mains/Bypass Input Connections Terminal
(1N, 2N, 1L3, 2L3, 1L2, 2L2, 1L1, 2L1)
17. Battery Breaker
23. X50: Output Connection Terminals (3N, 3L3, 3L2, 3L1)
18. AC Working Power
24. X20: External Battery Connection Terminals(B-, B_N, B+)
19. Batt. Start