Vertiv NetSure7100 Series User manual

NetSure™
7100 SERIES -48V DC Power System
User Manual (UM582127000100), Revision G
Specification Number: 582127000100, 582127000101, 582127000102, 582127000103, 582127000203
Model Number: 7100

Vertiv |NetSure 7100 Series User Manual (UM582127000100)|Rev. G
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The information contained in this document is subject to change without
notice and may not be suitable for all applications. While every precaution
has been taken to ensure accuracy and completeness herein, Vertiv Group
Corp. assumes no responsibility, and disclaims all liability, for damages
resulting from use of this information or for any errors or omissions. Refer
to other local practices or building codes as applicable for the correct
methods, tools, and materials to be used in performing procedures not
specifically described in this document.
This document may contain confidential and/or proprietary information of
Vertiv Group Corp., and its receipt or possession does not convey any right
to reproduce, disclose its contents, or to manufacture or sell anything that
it may describe. Reproduction, disclosure, or use without specific
authorization from Vertiv Group Corp. is strictly prohibited.
Vertiv and the Vertiv logo are trademarks or registered trademarks of
Vertiv Group Corp. All other names and logos referred to are trade names,
trademarks or registered trademarks of their respective owners.
© 2019 Vertiv Group Corp. All rights reserved.

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TABLE OF CONTENTS
Admonishments Used in this Document............................................................5
Important Safety Instructions ..............................................................................6
General Safety ..........................................................................................................................................................6
Voltages.......................................................................................................................................................................... 6
AC Input Voltages........................................................................................................................................................6
DC Output and Battery Voltages ..................................................................................................................6
Battery ...............................................................................................................................................................................7
Personal Protective Equipment (PPE)............................................................................................. 8
Hazardous Voltage.............................................................................................................................................. 8
Handling Equipment Containing Static Sensitive Components............................. 8
Maintenance and Replacement Procedures.............................................................................. 8
Static Warning...........................................................................................................9
Customer Documentation Package...................................................................10
System Description.................................................................................................11
Operating Procedures........................................................................................... 13
Controller, Rectifiers, and Converters .............................................................................................13
ESTOP Function................................................................................................................................................... 13
Controller Battery Charge Current Limit Feature............................................................... 13
Local Controls and Indicators.................................................................................................................14
Controller, Rectifiers, and Converters.................................................................................................... 14
Distribution Cabinet................................................................................................................................................ 14
Maintenance ............................................................................................................ 17
System Maintenance Procedures....................................................................................................... 17
Adding a Rectifier or Converter Module to an Existing Module
Mounting Assembly Spec. No. 588705300............................................................................... 17
Reconfiguring a Dual Voltage Distribution Panel (List DJ) .....................................20
Removing the Distribution Panel............................................................................................................... 20
Reworking the Distribution Panel.............................................................................................................. 22
Replacing the Distribution Panel................................................................................................................28
Troubleshooting and Repair............................................................................... 29
Contact Information.........................................................................................................................................29
Controller, Rectifiers, and Converters ............................................................................................29
Controller Configuration..............................................................................................................................29
System Troubleshooting Information ............................................................................................29
Replacement Information...........................................................................................................................30
Replacement Procedures...........................................................................................................................30
Replacing a Rectifier or Converter Module.......................................................................................31
Replacing the NCU Controller........................................................................................................................31
Replacing a Distribution Device...................................................................................................................31
Replacing a Distribution Panel (List AL, DJ)................................................................................. 34
Circuit Card Replacement Procedures.................................................................................................35

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Replacing a Battery Disconnect Contactor...................................................................................... 41

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ADMONISHMENTS USED IN THIS DOCUMENT
DANGER
! Warns of a hazard the reader will be exposed to that will likely result
in death or serious injury if not avoided. (ANSI, OSHA)
WARNING
! Warns of a potential hazard the reader may be exposed to that could
result in
death or serious injury if not avoided. This admonition is not used for situations that pose a
risk only to equipment, software, data, or service. (ANSI)
CAUTION
! Warns of a potential hazard the reader may be exposed to that could
result in minor or moderate injury if not avoided. (ANSI, OSHA) This admonition is not
used for situations that pose a risk only to equipment, data, or service, even if such use
appears to be permitted in some of the applicable standards. (OSHA)
ALERT
!Alerts the reader to an action that must be avoided in order to protect
equipment, software, data, or service. (ISO)
ALERT
! Alerts the reader to an action that must be performed in order to prevent
equipment damage, software corruption, data loss, or service interruption. (ISO)
FIRE SAFETY
! Informs the reader of fire safety information, reminders, precautions,
or policies, or of the locations of fire
-fighting and fire-safety equipment. (ISO)
SAFETY
! Informs the reader of general safety information, reminders, precautions, or
policies not related to a particular source of hazard or to fire safety. (ISO, ANSI, OSHA)

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IMPORTANT SAFETY INSTRUCTIONS
General Safety
DANGER! YOU MUST FOLLOW APPROVED SAFETY PROCEDURES.
Performing the following procedures may expose you to hazards. These procedures should be
performed by qualified technicians familiar with the hazards associated with this type of equipment.
These hazards may include shock, energy, and/or burns. To avoid these hazards:
a) The tasks should be performed in the order indicated.
b) Remove watches, rings, and other metal objects.
c) Prior to contacting any uninsulated surface or termination, use a voltmeter to verify that no voltage or
the expected voltage is present. Check for voltage with both AC and DC voltmeters prior to making
contact.
d) Wear eye protection.
e) Use certified and well maintained insulated tools. Use double insulated tools appropriately rated for the
work to be performed.
Voltages
AC Input Voltages
DANGER! This system operates from AC input voltage capable of producing fatal electrical shock. AC
input power must be completely disconnected from the branch circuits wiring used to provide power to
the system before any AC electrical connections are made. Follow local lockout/tagout procedures to
ensure upstream branch circuit breakers remain de-energized during installation. DO NOT apply AC
input power to the system until all electrical connections have been completed and checked.
DC Output and Battery Voltages
DANGER! This system produces DC power and may have a battery source connected to it. Although
the DC voltage is not hazardously high, the rectifiers and/or battery can deliver large amounts of current.
Exercise extreme caution not to inadvertently contact or have any tool inadvertently contact an output
terminal or battery terminal or exposed wire connected to an output terminal or battery terminal.
NEVER allow a metal object, such as a tool, to contact more than one termination or battery terminal at a
time, or to simultaneously contact a termination or battery terminal and a grounded object. Even a
momentary short circuit can cause sparking, explosion, and injury.
DANGER! Follow local lockout/tagout procedures to ensure DC branch circuit protection devices
remain de-energized during installation at loads, as required.

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Battery
Refer to the battery manufacturer documentation for specific battery safety instructions. The following are
general guidelines.
WARNING! Correct polarity must be observed when connecting battery leads.
WARNING! Special safety precautions are required for procedures involving handling, installing, and
servicing batteries. Observe all battery safety precautions in this manual and in the battery instruction
manual. These precautions should be followed implicitly at all times.
WARNING! A battery can present a risk of electrical shock and high short circuit current. Servicing of
batteries should be performed or supervised only by properly trained and qualified personnel
knowledgeable about batteries and the required precautions.
The following precautions should be observed when working on batteries:
•Remove watches, rings, and other metal objects.
•Eye protection should be worn to prevent injury from accidental electrical arcs.
•Use certified and well maintained insulated tools. Use double insulated tools appropriately rated for
the work to be performed. Ensure that wrenches with more than one working end have only one
end exposed.
•Do not lay tools or metal parts on top of batteries.
•Disconnect charging source prior to connecting or disconnecting battery terminals.
•Risk of explosion if battery is replaced with an incorrect type or if polarity is reversed.
Recommended to replace batteries with the same manufacturer and type, or equivalent.
•Dispose of used batteries according to the instructions provided with the batteries. Do not dispose
of batteries in a fire. They may explode.
•ALWAYS FOLLOW THE BATTERY MANUFACTURER’S RECOMMENDATIONS AND SAFETY
INSTRUCTIONS.
DANGER! This equipment may be used in conjunction with lead-acid batteries. Working near lead-acid
batteries is dangerous!
In addition to the hazard of electric shock, gas produced by batteries can be explosive and sulfuric acid
can cause severe burns.
•Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes, and is toxic.
•Batteries contain sulfuric acid.
•Batteries generate explosive gases during normal operation. Systems containing batteries should
never be installed in an airtight room or space. Only install in a ventilated environment.
•Batteries are an energy source that can produce high amounts of electrical current.

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FOR THESE REASONS, IT IS OF CRITICAL IMPORTANCE THAT YOU READ THESE INSTRUCTIONS
AND FOLLOW THEM EXACTLY.
WHEN WORKING WITH LEAD-ACID BATTERIES:
•Follow the recommended PPE requirements per the SDS for the battery to be used.
•If battery acid enters your eye, immediately flush your eye with running cold water for at least 15
minutes. Get medical attention immediately.
•If battery acid contacts skin or clothing, wash immediately with soap and water.
ALERT! Performing maintenance and/or troubleshooting procedures may interrupt power to the loads,
if battery reserve is not sufficient.
Personal Protective Equipment (PPE)
DANGER! ARC FLASH AND SHOCK HAZARD.
Appropriate PPE and tools required when working on this equipment. An appropriate flash protection
boundary analysis should be done determine the “hazard/risk” category, and to select proper PPE.
This product is intended only for installation in a Restricted Access Location.
Only authorized and properly trained personnel should be allowed to install, inspect, operate, or maintain
the equipment.
Do not work on LIVE parts. If required to work or operate live parts, obtain appropriate Energized Work
Permits as required by the local authority, per NFPA 70E “Standard for Electrical Safety in the
Workplace”.
Hazardous Voltage
DANGER! HAZARD OF ELECTRICAL SHOCK.
More than one disconnect may be required to de-energize the system before servicing.
Handling Equipment Containing Static Sensitive Components
ALERT! Installation or removal of equipment containing static sensitive components requires careful
handling. Before handling any equipment containing static sensitive components, read and follow the
instructions contained on the Static Warning Page.
Maintenance and Replacement Procedures
CAUTION! When performing any step in procedures that requires removal or installation of hardware,
use caution to ensure no hardware is dropped and left inside the unit; otherwise service interruption or
equipment damage may occur.
NOTE! When performing any step in procedures that requires removal of existing hardware, retain all
hardware for use in subsequent steps, unless otherwise directed.

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STATIC WARNING
This equipment contains static sensitive components. The warnings listed below must be observed to
prevent damage to these components. Disregarding any of these warnings may result in personal injury
or damage to the equipment.
1. Strictly adhere to the procedures provided in this document.
2. Before touching any equipment containing static sensitive components, discharge all static electricity
from yourself by wearing a wrist strap grounded through a one megohm resistor. Some wrist straps
have a built-in one megohm resistor; no external resistor is necessary. Read and follow wrist strap
manufacturer’s instructions outlining use of a specific wrist strap.
3. Do not touch traces or components on equipment containing static sensitive components. Handle
equipment containing static sensitive components only by the edges that do not have connector pads.
4. After removing equipment containing static sensitive components, place the equipment only on
conductive or anti-static material such as conductive foam, conductive plastic, or aluminum foil. Do not
use ordinary Styrofoam™or ordinary plastic.
5. Store and ship equipment containing static sensitive components only in static shielding containers.
6. If necessary to repair equipment containing static sensitive components, wear an appropriately
grounded wrist strap, work on a conductive surface, use a grounded soldering iron, and use grounded
test equipment.

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CUSTOMER DOCUMENTATION PACKAGE
This document (UM582127000100) provides User Instructions for NetSure™ -48 VDC Power System Model
7100, Spec. No. 582127000, Lists 100, 101, 102, 103, and 203 only.
The complete Customer Documentation Package for Lists 100, 101, 102, 103, and 203 consists of…
NetSure™-48 VDC Power System Installation Manual
•Power System Installation Instructions: IM582127000100
NetSure™-48 VDC Power System User Manual
•Power System User Instructions: UM582127000100
NetSure™NCU Controller User Manual
•NCU Controller User Instructions: UM1M830BNA
USB Drive with All Customer Documentation for 582127000
Applicable documents for this system are as follows.
•Power System Installation Instructions: IM582127000100 (instructions for Lists 100, 101, 102, 103, and
203)
•Power System User Instructions: UM582127000100 (instructions for Lists 100, 101, 102, 103, and 203)
•NCU Controller User Instructions: UM1M830BNA
•Rectifier Instructions: UM1R482000e3
•Converter Instructions: UM1C48241500
•Power System “System Application Guide”: SAG582127000
•Engineering Drawings
•Also provided on the USB drive is a controller configuration drawing and the controller configuration
files loaded into the controller as shipped.

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SYSTEM DESCRIPTION
-48 VDC @ 1000 A and +24 VDC @ 500 A Power System
Lists 100, 101, 102, 103, and 203 of NetSure™ 7100 DC Power System are integrated power systems containing -
48 VDC rectifiers, +24 VDC converters, intelligent control, metering, monitoring, and distribution.
This power system is designed to power a load while charging a positive grounded battery. This power system
is capable of operating in a batteryless installation or off battery for maintenance purposes. The power system
is designed for operation with the positive output grounded.
List 100, 103, and 203 of NetSure™ 7100 DC Power System consist of the following components mounted in a
7’0” x 23” relay rack, List 101 is mounted in 5'0" x 23" relay rack, and List 102 is mounted in a 6'0" x 23" relay rack.
Distribution Cabinet
A 3-row distribution cabinet is provided. The distribution cabinet is equipped with manual battery disconnect.
Installed in the distribution cabinet are one (1) List DJ distribution panel and two (2) List AL distribution panels.
See SAG582127000 for descriptions.
The distribution cabinet also houses one (1) IB2 controller interface board, one (1) optional EIB controller
extended interface board, the IB4 second Ethernet port board, and the system interface board. See
SAG582127000 for descriptions.
NCU (NetSure Control Unit) Controller
The controller provides power system control, rectifier control (including a charge control function), converter
control, metering functions, monitoring functions, and local/remote alarm functions. The controller also
supports rectifier temperature compensation if the system is equipped with a temperature probe(s).
Temperature probe(s) may also be designated to monitor ambient temperature and/or battery temperature.
The controller also provides data acquisition, system alarm management, and advanced battery and energy
management. The controller contains a color LCD display and keypad for local access. The controller provides
an Ethernet port and comes with comprehensive webpages for remote access. The controller has SNMP v3
capability for remote system management. The controller supports software upgrade via its USB port. Refer to
the NCU Controller Instructions (UM1M830BNA) for more information.
Rectifier Modules
The system contains rectifier modules, which provide load power, battery float current, and battery recharge
current during normal operating conditions. Refer to the Rectifier Instructions (UM1R482000e3) for more
information.

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DC-DC Converter Modules
Where +24 VDC load power is also required, DC-DC converter modules are available. Refer to the Converter
Instructions (UM1C48241500) for more information.
List 101
List 101 provides one (1) battery tray.
List 102
List 102 provides two (2) battery trays.
List 103
List 103 provides three (3) battery trays.
List 203
List 203 provides three (3) battery trays.

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OPERATING PROCEDURES
Controller, Rectifiers, and Converters
For operation instructions on these units, refer to the following documents.
•NCU Controller Instructions (UM1M830BNA)
•Rectifier Instructions (UM1R482000e3)
•Converter Instructions (UM1C48241500)
ESTOP Function
If an ESTOP switch is wired to the IB2-1 Controller Interface Board, customer-furnished system ground applied
to terminal DI8+ activates the ESTOP function. The ESTOP function shuts down and locks out the rectifiers,
shuts down and locks out the optional -48 VDC to +24 VDC converters, and opens the optional low voltage
disconnect (LVD) contactors (battery and load type). If the system has battery connected and does not
contain a battery LVD or the controller power option is set to Battery Pwr (jumper J3 on the system interface
board is set to Battery Pwr), the controller will remain operational. If the system does not contain battery or
load LVD(s) and has battery connected, the loads will be sustained by the battery voltage.
For Systems NOT Containing a Battery LVD: When the ESTOP signal is removed, LVD contactors (battery and
load type) will close after the “LVD Reconnect Delay” has elapse (customer configurable via the controller) if
battery voltage is present on the bus. Rectifiers and -48 VDC to +24 VDC converters will remain off. The
rectifiers will restart when the input power is removed and restored after 30 seconds or more (until the LEDs on
the modules extinguish). To restart the -48 VDC to +24 VDC converters: remove the converter, wait 30
seconds or more (until the LEDs on the converter extinguish), then re-insert the converter.
For Systems Containing a Battery LVD: When the ESTOP signal is removed, LVD contactors (battery and load
type) will remain open. Rectifiers and -48 VDC to +24 VDC converters will remain off. The rectifiers will restart
when the input power is removed and restored after 30 seconds or more (until the LEDs on the modules
extinguish). When the rectifiers restart, LVD contactors (battery and load type) will close after the “LVD
Reconnect Delay” has elapse (customer configurable via the controller) and the -48 VDC to +24 VDC
converters will restart.
NOTE! If a customer-furnished method to disconnect the input power to the system is not provided, the
rectifiers will stay locked OFF until the input power is recycled. If the ESTOP signal is removed without
recycling the input power, the rectifiers will remain off and have a local alarm visible on the module. The
ESTOP alarm from the controller will extinguish. The controller will not issue an alarm for this condition.
Controller Battery Charge Current Limit Feature
Functionality: After a failure of the input source (commercial AC) or when some battery cells are permanently
damaged, the current to the batteries can be quite extensive. To avoid overheating or further damages to the
battery, the controller can be programmed to limit the battery current to a preset level by limiting the charging
voltage of the rectifiers. Should the battery current still exceed a higher preset value, an alarm is issued.
The controller limits the current going to the batteries based on the “Battery Current Limit” set point which is a
percentage of the battery capacity in C10. For example, 0.1C10 would mean 10% of the battery capacity.

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Refer to the NCU Controller Instructions (UM1M830BNA) to program this feature. Battery charge current is
limited to the value set in the controller, as long as battery voltage is above 47 VDC. The default value for
battery recharge current limit is 0.1xC10.
Local Controls and Indicators
Controller, Rectifiers, and Converters
Refer to the controller, rectifier, and converter instructions for descriptions of the local controls and indicators
located on these units.
Distribution Cabinet
Refer to this section for descriptions of the local controls and indicators located on the circuit cards installed in
the distribution cabinet.
System Interface Board Indicator, Switch, and Test Points
The system interface board contains a manual battery disconnect switch and indicator. The board also
contains test points to externally monitor system voltage. Refer to Figure 1for circuit card location and Figure
2for indicator, switch, and test points descriptions.
IB2 (Controller Interface Board) and OptionalEIB (Controller Extended Interface Board) Indicator
The IB2 and optional EIB boards have a green LED indicator which is lit in normal operation and flashes when
the IB2 or EIB board is communicating with the controller. Refer to Figure 1for IB2 and EIB locations.

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Figure 1: Circuit Card Locations
(Front Door Removed in
Illustration for Clarity)
Distribution
Cabinet
IB2-1
(Interface
Board #1)
MA4C5U31
IB4
(2nd Ethernet
Port Board)
558076
Optional EIB-1
(Extended
Interface Board)
MA455U41
System Interface
Board 562662
NCU Controller
1M830DNA

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Figure 2: System Interface Board
T
P1 (-) and TP2 (+)
System Voltage
Momentary UP / Middle / Momentary Down
Manual Battery
Disconnect
Active Indicator
Manual Battery
Disconnect Switch Illuminates if the Battery Disconnect Contactor has
been manually disconnected (placed in open position).
Momentary UP Position: Closes (latches in close position) the Battery Disconnect Contactor.
Middle Position: Normal Operation.
Momentary DOWN Position: Opens (latches in open position) the Battery Disconnect Contactor.
Momentarily place switch in the UP position to close the contactor.
C1
CR1
CR2
CR3
CR4
DS1
F1
F2
H1
J1
J2
J3
J4
J5
J6
K1
K2
K3
K4
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R18
S1
TB1
TP1
TP2
562662
0 0 0 X X X X X
AXXXXXXXX

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MAINTENANCE
System Maintenance Procedures
It is recommended to perform the maintenance procedures listed in Table 1every 6-months to ensure
continual system operation.
Table 1: Maintenance Procedures to be Performed at 6-Month Intervals
PROCEDURE REFERENCED IN
Check ventilation openings
for obstructions such as dust,
papers, manuals, etc.
--
Inspect and tighten all
installer's connections.
IM582127000100,
“Making Electrical
Connections” section.
Adding a Rectifier or Converter Module to an Existing Module Mounting Assembly Spec.
No. 588705300
To increase system current capacity, a rectifier module can easily be added to an existing module mounting
assembly Spec. No. 588705300 that contains an empty rectifier module mounting position. Likewise, to
increase subsystem capacity a DC-DC converter module can be added to a module mounting assembly Spec.
No. 588705300 that contains an empty converter module mounting position.
Rectifier and converter modules can be inserted or removed with power applied (hot swappable).
Rectifiers modules can be installed in any mounting position of each module mounting assembly. Converter
modules can be installed in any of the three far right mounting positions of the three lower module mounting
assemblies (as viewed from the front). See Figure 3.
NOTE! Each rectifier and converter module locks into the module mounting assembly by means of a
latch located on the bottom of the module. The latch and module handle are interactive. Pushing the
handle up into the module’s front panel causes the latch to extend to the locking position; pulling the
handle down out from the module’s front panel causes the latch to retract. See Figure 3 .
WARNING! To prevent damage to the latching mechanism, ensure the handle is in the open position
when installing or removing a module. NEVER hold the handle in the closed position when installing a
module into a shelf.
Procedure
1. Unpack the modules.
2. Note the model number located on the front of each module. Model numbers starting with the letter “R”
are rectifier modules. Model numbers starting with the letter “C” are converter modules.
3. Place the module into an unoccupied mounting position without sliding it in completely. Rectifier
modules can be installed in any mounting position of each module mounting assembly. Converter

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modules can be installed in any of the three far right mounting positions of the three lower module
mounting assemblies (as viewed from the front). See Figure 3.
4. Loosen the captive screw on the module’s handle. Pull the handle down out from the module’s front
panel (this will also retract the latch mechanism). See Figure 3.
5. Push the module completely into the shelf.
6. Push the handle up into the module’s front panel. This will lock the module securely to the shelf.
Tighten the captive screw on the handle.
7. Repeat the above steps for each module being installed in the system.
8. After the modules are physically installed in the module mounting assembly(s), they are ready for
operation immediately after power is supplied to them.
NOTE! It is recommended that the current limit point be checked whenever a rectifier is added to or
removed from the power system. Refer “Checking the Controller’s Current Limit Point after Adding or
Removing a Rectifier Module” on page 29.
NOTE! The rectifier or converter being added is assigned by the controller the lowest available
identification number. If desired, you can change the identification number. Refer to the NCU Controller
Instructions (UM1M830BNA) for a procedure.

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Figure 3: Installing Rectifier and Converter Modules in a Spec. No. 588705300 Module Mounting Assembly
RectifierorConverter Module
Model Number Label
(R48-2000e3 Rectifier)
(C48/24-1500 Converter)
Captive Screw
Latch
Handle
Rectifiers Only in Top Shelf
Rectifiers in Any Position
Rectifiers or Converters in Far Right Three Positions
Front View

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Reconfiguring a Dual Voltage Distribution Panel (List DJ)
Perform the following procedure to reconfigure a dual voltage distribution panel (List DJ) to move distribution
positions from one voltage to the other.
DANGER! Performing this procedure exposes service personnel to battery potential. Exercise extreme
caution not to inadvertently contact or have any tool inadvertently contact any energized electrical
termination.
NOTE! Save all removed hardware. Hardware will be re-used.
Removing the Distribution Panel
Procedure
1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable
these alarms. If these alarms cannot be easily disabled, notify the appropriate personnel to disregard
any future alarms associated with this system while the procedure is being performed.
2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.
3. Remove the plastic shield covering the circuit breakers and/or fuseholders on the distribution panel to
be removed by loosening the screws holding the shield and sliding the shield upwards.
4. Record circuit breaker and/or fuse positions and sizes.
5. Remove circuit breakers and/or fuseholders.
6. Label the load leads.
7. Disconnect and insulate all load leads from the circuit breaker and/or fuse positions.
8. Disconnect and insulate all load return leads from the ground busbar.
9. Refer to Figure 4and remove the hardware securing the +24V jumper leads. Insulate and tie back these
leads.
10. Refer to Figure 4and locate the in-line FA/CBA connector located near the back of the distribution
panel. Separate the connector halves.
11. Refer to Figure 4and remove the hardware securing the distribution panel’s ground busbar to the
distribution cabinet’s busbar.
12. Refer to Figure 4and remove the hardware securing the distribution panel’s system load distribution
busbar to the distribution cabinet’s busbar.
13. Refer to Figure 4and remove the hardware securing the distribution panel to the distribution cabinet.
Remove the distribution panel from the distribution cabinet.