Eaton 9SX 15K Series User manual

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Eaton 9SX 15-20K Series
Maintenance ByPass (MBP)
MBP20K
MBP20KPDU
MBP20KPARA

Copyright © 2020 EATON
All rights reserved.

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Safety Instructions
•SAVE THESE INSTRUCTIONS. See installation instructions before connecting
to the supply. This manual contains important instructions that should be
followed during installation and maintenance of the MBP.
•In the event of a fire, please use a dry powder fire extinguisher to extinguish
the fire. Do not use liquid fire extinguishers to avoid electric shock.
•The MBP models that are covered in this manual are intended for installation
in an environment within 0 to 50°C, free of conductive contaminant.
Special Symbols
The following are examples of symbols used on the MBP or accessories to alert
you of the below important information:
RISK OF ELECTRICAL SHOCK - Observe the warning associated with the risk of
electric shock symbol.
Important instructions that must always be followed.
The crossed-out wheeled bin symbol indicates that electrical and electronic
waste should not be discarded together with general household waste as they
must be collected separately. The product should be handed in for recycling in
accordance to the local environmental regulations for waste disposal.
By separating electrical and electronic waste, you will help reduce the volume of
waste sent for incineration or land-fills and minimize any potential negative
impact on human health and environment.
Information, advice, help.
Refer to the user manual.
Personnel Safety
⚫RISK OF VOLTAGE BACKFEED. Isolate the MBP and check for hazardous
voltage upstream and downstream during lockout-tagout operation. The
terminal blocks may be energized even if the system is disconnected from the
AC power source.

⚫Dangerous voltage levels are present within the system. It should be opened
exclusively by qualified service personnel.
⚫High leakage current may be present. Earth connection is essential before
connecting to the supply.
⚫Precautions must be taken for all handling, Wear rubber gloves and boots.
Product Safety
⚫The MBP connection instructions and operation described in this manual
must be followed in the indicated order.
⚫The upstream circuit breaker for Normal AC / Bypass AC must be easily
accessible so that the unit can be disconnected from AC power source by
opening this circuit breaker.
⚫An additional AC contactor should be used for backfeed protection and must
comply with IEC/EN 62040-1 (the creepage and clearance distances shall meet
the basic insulation requirements for pollution degree 2).
⚫Disconnection and overcurrent protection devices shall be provided by others
for permanently connected AC input (Normal AC/Bypass AC) and AC output
circuits.
⚫Check that the indications on the rating plate corresponds to your AC
powered system and to the actual electrical consumption of all the equipment
to be connected to the system.
⚫For PLUGGABLE EQUIPMENT, the socket-outlet shall be installed near the
equipment and shall be easily accessible
⚫Never install the system near liquids or in an excessively damp environment.
⚫Never let a foreign object penetrate inside the system.
⚫Never block the ventilation grates of the system.
⚫Never expose the system to direct sunlight or source of heat.
⚫If the system must be stored prior to installation, storage must be in a dry
place.
⚫The admissible storage temperature range is -25°C to +60°C.
Special precautions
⚫The unit is heavy: wear safety shoes and use vacuum lifter preferentially for
handling operations.
⚫All handling operations will require at least two people (unpacking, lifting,

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installation in rack system).
⚫Straps are provided only for unpacking the unit manually from the carton;
don’t use the straps to carry the unit around. The unit may slip from the straps
during handling (risk of injury and product damage):
-keep 12”/ 30cm minimum distance between the straps
-lift the unit carefully and keep it at a low height
-keep the unit horizontal during unpacking.

Contents
1. Introduction .................................................................................................. 7
1.1 Model configuration................................................................. 8
1.2 Appearance............................................................................... 9
2. Installation ................................................................................................ 12
2.1 Unpacking and inspection .................................................... 12
2.2 Mechanical installation ......................................................... 13
3. Wiring.......................................................................................................... 16
Cable and connector.................................................................... 18
3.1 Wiring of single MBP (Standard version)............................ 20
3.2 Wiring of single MBP (Basic version).................................. 33
3.3 Wiring of 1+1 parallel MBP(standard version).................... 35
4. Operation.................................................................................................... 49
4.1 Wiring of detection cable...................................................... 49
4.2 Normal mode to maintenance bypass mode ..................... 51
Appendix 1: System block diagram ............................................................ 53
Appendix 2: Product specification............................................................... 54

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1. Introduction
Thank you for selecting the Eaton MBP (Maintenance ByPass) for use with the Eaton 9SX 15-
20KPMAU series UPS.. When installed and used properly as outlined in this manual, the MBP
provides the ability to bypass the UPS power and battery modules for servicing whist keeping
the critical load up.
We recommend that you take the time to read this manual to take full advantage of the many
features of your MBP.
Before installing your MBP, please read the booklet presenting the safety instructions. Then
follow the indications in this manual.
Environmental protection
Products are developed according to an eco-design approach.
Substances
This product does not contain CFCs, HCFCs or asbestos.
Packaging
•To improve waste treatment and facilitate recycling, separate the various packaging
components.
•The cardboard comprises of over 50% recycled cardboard.
•Sacks and bags are made of polyethylene.
•Packaging materials are recyclable and bear the appropriate identification symbol
Materials
Abbreviations
Number in
the symbols
Polyethylene terephthalate
PET
01
High-density polyethylene
HDPE
02
Polyvinyl chloride
PVC
03
Low-density polyethylene
LDPE
04
Polypropylene
PP
05
Polystyrene
PS
06
Follow all local regulations for the disposal of packaging materials.
Product
The product is made up of recyclable materials.
Dismantling and destruction must take place in compliance with all local regulations

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concerning waste. At the end of its service life, the product must be transported to a
processing center for electrical and electronic waste.
1.1 Model configuration
Model name
Size W*H*D(mm)
N.W.(kg)
Note
MBP20K
438*129（3U）*465
12.8
single MBP
(Basic version)
MBP20KPDU
438*129（3U）*465
13.6
single MBP
(Standard version)
MBP20KPARA
438*129（3U）*465
19.9
1+1 parallel MBP
(Standard version)
Notes:
1. Total of 4 input/output modes are included:
•3-3 phase (single source)/(dual source)
•3-1 phase (single source {default})/(dual source)
•1-1 phase (single source)/(dual source)
•1-3 phase (single source)/(dual source)
2. Dimension D(465mm) is not including front-panel.

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1.2 Appearance
Front view (With front panel)
Notes:
1. Ventilation area
2. Maintenance Bypass label
1.2.1 Single MBP (Basic version)
Front view (Remove front panel)
Rear view

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Notes:
1. RJ45 ports (DetectEBM /MBP)
2. AC input terminal ports
3. AC outputsegment 1(Not programmable)
4. UPS ports
5. Input switch
6. Maintenance bypass switch
1.2.2 Single MBP (standard version):
Front view (Remove front panel)
Rear view
Note:
1. RJ45 ports (Detect EBM / MBP)
2. AC input terminal ports
3. AC output segment 1(Not programmable)
4. AC output segment 2(Programmable)
5. UPS ports
6. Load 1 with IEC output sockets (Not programmable)
7. Load 2 with IEC output sockets (Programmable)

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8. Breakers for IEC output sockets
9. Input switch
10. Maintenance bypass switch
1.2.3 1+1 parallel MBP (standard version):
Front view (Remove front panel)
Rear view
Note:
1. RJ45 ports (Detect EBM / MBP)
2. AC input terminal ports
3. AC output segment 1 (Not programmable)
4. AC output segment 2 (Programmable)
5. UPS1 ports
6. UPS2 ports
7. Input switch
8. Maintenance bypass switch

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2. Installation
2.1 Unpacking and inspection
Please carefully check the module for damages during transportation. Any damages
or missing accessories should be reported to the supplier or carrier immediately.
Do not carry the modules by the front and rear panels
2.1.1 Unpacking the Unit
2.1.2 Inspecting accessories
MBP accessories
MBP20K
MBP20KPDU
MBP20KPARA
MBP detection cable
√
√
√
Cable to UPS1
√
√
√
Cable to UPS2
-
-
√
Cable locker (for IEC outlets)
-
√
-
Copper bus-bar
(including ‘mode-seting label’)
√
√
√
Rack ear
√
√
√
Rack rail kit
O
O
O
User manual
√
√
√
Note：√---Included; O---Option, default is Not configured;“-"---Not applicable

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2.2 Mechanical installation
The MBP supports two installation modes: Tower installation and rack installation. The MBP
should be located at the top (rack installation), or to the left (tower installation) of the power
module for cable connection access. (as shown below)
Rack installation Tower installation
Allow for 500mm front and rear clearance from the module for ventilation
Do not carry the front/rear panel of the module during installing.
2.2.1 Rack mount
The Installation steps are the same as that of the UPS Power module. The MBP is suitable for
installation in a 19-inch standard rack cabinet. It is recommended that the depth of the cabinet
be no less than 800mm.
1. Install the optional rail kit. This rail kit is '2U & with M5 sized screw holes, the depth of
the rail kit is: 415-763mm.

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Fasten the rail kit to cabinet with 8pcs M5 screws + washers (as below):
2. Install the mounting ears. Lock the left/right mounting ears into the MBP with 8pcs of
M4 flat screws (take note of the correct orientation of the mounting ears as below)
Note: There are 2 other possible mounting positions for the mounting ears to suit
different rack depths:

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3. Take the MBP to the rail kit and push backwards; secure to the cabinet posts with
4pcs M5 screws + washers (as below).
2.2.2 Tower mount
1. Place the MBP on the left side of the UPS and align it with the front panel of the UPS
module.
2. Position the pedestal feet that is included as part of the UPS power module’s
accessories, one end to the side of the MBP, and the other to the last UPS/EBM
module as shown below:

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3. Wiring
This section outlines the AC input/output cable connections for the MBP, and the connection to
the UPS’ power module.
When installing and connecting the MBP, configure the circuit breaker and the feed protection
contactor before connecting the MBP to prevent current feedback. a “voltage feedback risk”
warning label must be added to the feeder protection contactor or similar feeder. Disconnect the
MBP before operation and check to ensure that there are no dangerous voltages on all terminals.
The rated current requirement of the feeder protection contactor is greater than the rated current
of the MBP. Wiring diagram as shown below:
Before any connections, ensure that upstream circuit breakers and backfeed contactors are in
place to avoid power backfeed to the utility. A warning label with “Backfeed voltage may be
present” text or similar must be to be added on the backfeed contactor device. Disconnect the
MBP before operation and check to ensure that there are no dangerous voltages on all terminals.
The current rating of the backfeed contactor should be greater than that of the MBP. Refer to he
figures below
Single phase system

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Three phase system
Recommended circuit breaker and contactor current specifications:
UPS
MBP model
Input mode
Breaker
Contactor
15KVA
MBP20K
MBP20KPDU
1 phase main input
D type 125A
≥125A
3 phase main input
D type 63A
≥63A
1 phase bypass input
D type 100A
≥100A
3 phase bypass input
D type 40A
≥40A
1 phase output
D type 100A
≥100A
3 phase output
D type 40A
≥40A
MBP20KPARA
1 phase main input
D type 230A
≥230A
3 phase main input
D type 80A
≥80A
1 phase bypass input
D type 160A
≥160A
3 phase bypass input
D type 63A
≥63A
1 phase output
D type 160A
≥160A
3 phase output
D type 63A
≥63A
20KVA
MBP20K
MBP20KPDU
1 phase main input
D type 160A
≥160A
3 phase main input
D type 63A
≥63A
1 phase bypass input
D type 125A
≥125A
3 phase bypass input
D type 63A
≥63A
1 phase output
D type 125A
≥125A
3 phase output
D type 63A
≥63A
MBP20KPARA
1 phase main input
D type 300A
≥300A
3 phase main input
D type 100A
≥100A

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1 phase bypass input
D type 230A
≥230A
3 phase bypass input
D type 80A
≥80A
1 phase output
D type 230A
≥230A
3 phase output
D type 80A
≥80A
Cable and connector
The cable’s conductor size should be selected based on the size of the UPS power module.
Refer to the following two tables for the cross-sectional dimensions in mm². Each for 15kvA
and 20kVA UPS respectively:
15kVA UPS
MBP Model
Input/
Output
Mode
Input
Output
Main input
Bypass input
Ground wire
L wire
N wire
L wire
N wire
L wire
N wire
Ground
wire
MBP20K
MBP20KPDU
3-1
6
6
16
16
16
16
16
16
3-3
6
6
6
6
6
6
6
6
1-1
35
35
16
16
35
16
16
16
1-3
35
35
6
6
35
6
6
6
MBP20KPARA
3-1
16
16
50
50
50
50
50
50
3-3
16
16
10
10
16
10
10
10
1-1
95
95
50
50
95
50
50
50
1-3
95
95
10
10
95
10
10
10

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20kVA UPS
Notes ：
1. For single input connection, please select the larger conductor size cross-section.
2. UPS output cable length is recommended not to exceed 10m.
Please refer to the following table for conductor’s terminal selection:
20KVA UPS
MBP Model
Input/
Output
Mode
Input
Output
Main input
Bypass input
Ground wire
L wire
N wire
L wire
N wire
L wire
N wire
Ground
wire
MBP20K
MBP20KPDU
3-1
10
10
25
25
25
25
25
25
3-3
10
10
10
10
10
10
10
10
1-1
50
50
25
25
50
25
25
25
1-3
50
50
10
10
50
10
10
10
MBP20KPARA
3-1
25
25
70
70
70
70
70
70
3-3
25
25
16
16
25
16
16
16
1-1
120
120
70
70
120
70
70
70
1-3
120
120
16
16
120
16
16
16
Conductor cross-section (Unit:mm²)
Ring terminal type
6
DRNB6-6
10
DRNB6-10
16
DRNB8-16
25
DRNB8-25
35
DRNB8-35
50
DRNB8-50
70
DRNB8-70
95
DRNB8-95
120
DRNB8-120

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3.1 Wiring of single MBP (Standard version)
Single MBP (Standard version) terminal block (TB) layout as below:
Notes:
1. AC input TB: N/N/mL1/ bL1/ mL2/bL2/ mL3/bL3/PE (‘m’ is main input,’b’ is bypass input)
2. AC segment 1 (Not programmable): PE/N/N/L1/L2/ L3
3. AC segment 2 (Programmable): N/N/L1/L2/ L3/ PE
4. UPS input TB: PE/N/N/L1/L2/L3
5. UPS bypass TB: L1/L2/L3
6. UPS output TB: N/N/L1/L2/L3
This section outlines the 8 different possible modes of input/output wiring applications. Below is
a list of copper busbars and a label plate available for the different connection modes.
To gain access to the terminal blocks, it is only necessary to remove the terminal block’s top
cover, without removing the whole box.
Item
Quantity(PC)
Figure
Copper
busbar
1
6
3
2