Vertiv NetSure 801NLDB User guide

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 1 Revision T, September 28, 2022
SYSTEM OVERVIEW
Description: -48V DC @ up to 16,800 amperes Power System.
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. This power system is designed for operation with the positive output grounded.
The Vertiv™ NetSure™ 801NLDB (208V Input Power Bay), 801NLEB (380V/480V Input Power Bay), and
801NL-B(Distribution Bay) DC Power System is a complete integrated power system containing
rectifiers, intelligent control, metering, monitoring, and distribution. This power system consists of the
following components.
•Power Bays
The system consists of one (1) Primary Power Bay and up to six (6) Secondary Power Bays.
Each Power Bay can be equipped with up to twenty-four (24) Rectifier Modules.
Each Power Bay contains a Monitor and Control
Panel. In the Primary Power Bay, this panel
houses the Meter-Control-Alarm (MCA)
assembly. This panel in the Primary Power Bay
also houses the optional LMS Main CPU circuit
card of the integrated LMS Monitoring System. In
a Secondary Power Bay, this panel can be
equipped with an optional LMS Expansion CPU
circuit card. (The optional LMS Monitoring
System provides a higher level of monitoring and
controlling capabilities to the power system.)
The Monitor and Control Panel in both Primary
and Secondary Power Bays contain a seven-slot
card cage to house MCA alarm relay circuit cards,
MCA input/output (I/O) circuit cards, and
optional LMS I/O circuit cards. (If a Secondary
Power Bay is to be equipped with optional LMS
I/O circuit cards, it must also be equipped with
the LMS Expansion CPU circuit card.)
•Distribution Bays
The system consists of one (1) to eight (8)
Distribution Bays.
Each Distribution Bay provides four (4)
distribution buses.
Each distribution bus accepts a choice of
218-type circuit breakers and TPL-type fuses.
A Distribution Bay may also be equipped with an
optional distribution panel which accepts a choice
of TPS/TLS-type fuseholders or Bullet Nose-type
circuit breakers.
•Rectifier Modules
The Rectifier Modules provide load power,
battery float current, and battery recharge
current during normal operating conditions.
Power Bay

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 2 Revision T, September 28, 2022
•MCA (Meter-Control-Alarm)
The MCA controls the operation of the Rectifier Modules and provides power system control,
metering, monitoring, and alarm functions.
MCA Local Control Panel: This panel is located on the front of the Primary Power Bay and
contains a keypad, display, and indicators for local MCA user interface.
MCA Relay Circuit Card: Each MCA relay circuit card provides six (6) sets of Form-C relay
contacts for customer external alarms. These relays are user programmable for various power
system alarms. Up to sixteen (16) MCA relay circuit cards can be installed in the Primary and
Secondary Power Bays. The Primary Power Bay is factory equipped with two (2) MCA relay
circuit cards.
MCA I/O Circuit Cards: The MCA I/O circuit cards provide analog inputs/outputs and binary
inputs. Up to sixteen (16) MCA I/O circuit cards can be installed in the Primary and Secondary
Power Bays.
•Optional Integrated
LMS Monitoring System
The LMS Monitoring System consists of
an LMS Main CPU circuit card, optional
LMS Expansion CPU circuit cards, optional
LMS I/O circuit cards, optional LMS
Expansion Cabinet, and optional LMS
Expansion Assemblies.
The LMS Main CPU circuit card is
mounted in the Primary Power Bay. Each
Secondary Power Bay that is to be
equipped with optional LMS I/O circuit
cards must contain an LMS Expansion
CPU circuit card. LMS Expansion
Cabinets and LMS Expansion Assemblies
are available that mount into customer
racks and equipment.
The LMS Monitoring System is factory
integrated within each Power Bay, and
requires no additional customer
interconnections within the Power Bay.
Simple cable connections between Power
and Distribution Bays complete the
interbay connections required. Separate
analog, binary, and relay circuit cards do
not have to be supplied for power system
monitoring. Analog, binary, relay, and
temperature circuit cards can be provided
to monitor equipment external to the
power system.
The LMS input circuit cards monitor a
variety of analog, binary, and temperature
points external to the system. An LMS
relay output circuit card is also available
which provides programmable relays.
These relays may be used for external
alarms, or to control other equipment.
The LMS Monitoring System can be
accessed via a local port, a modem port
(when optional modem is ordered), an
optional TL1 port, and an Ethernet port
(for Telnet access, optional Web access,
optional SNMP access, optional TL1
access, and Email alarm reporting). Distribution Bay

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 3 Revision T, September 28, 2022
The LMS Monitoring System collects data from the power system and the input circuit cards
monitoring external points. The data collected is used for alarm processing and reporting, and to
provide statistics.
The LMS Monitoring System is capable of reporting alarm conditions to a remote terminal, pager,
Email address, via SNMP traps over Ethernet when the SNMP option is ordered, or via TL1 (over
Ethernet) when the 'TL1 over Ethernet' option is ordered. TL1 is also available via a serial
connection in 'direct mode'. For remote terminal or pager notification, the LMS Main CPU circuit
card must be equipped with the optional modem. Two types of alarm reporting mechanisms are
provided, System Alarm Reporting and Individual User Alarm Reporting.
Refer to SAG586505000 for further LMS information. The SAG can be accessed via the CD
(Electronic Documentation Package) furnished with your system.
•Applications
The Vertiv™ NetSure™ 801NLDB and 801NLEB is capable of interfacing with Vortex®Power Systems
(VPS).
The Vertiv™ NetSure™ 801NLDB and 801NLEB is capable of interfacing with legacy power systems.
Refer to the wiring diagrams in the Installation Instructions (Section 6016). Refer also to Lists 64,
65, 66, and 67.

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 4 Revision T, September 28, 2022
General Specifications
See detailed specifications on page 65.
Family: Vertiv™ NetSure™
Spec. No.: 582140001
Model: 801NLDB (208V Input Power Bay)
801NLEB (380V/480V Input Power Bay)
801NL-B(Distribution Bay)
Input Voltage Nominal 380/480 volts AC, three phase, 50/60 Hz, with an operating range of 260
to 530 volts. Acceptable input frequency range is 45 to 65 Hz.
or
Nominal 208 volts AC, three phase, 50/60 Hz, with an operating range of 176 to 264
volts. Acceptable input frequency range is 45 to 65 Hz.
Output Voltage: -48 Volts DC
Output Capacity:
System: 16,800 Amperes, maximum
(Other configurations are available. For higher amperage configurations, contact
Vertiv.)
Power Bay: 2400 Amperes, maximum
Rectifier Module: 100A / -48V
Distribution Bay: 6000 Amperes, maximum
Distribution Bus: 1500 Amperes, maximum
(four Distribution Buses
per Distribution Bay)
Optional Distribution Panel: 500 Amperes, maximum
(Bullet Nose Circuit
Breakers and/or TLS/TPS
Fuses) (one optional
Distribution Panel per
Distribution Bay)
Agency Approval: Model 801NL-B(Distribution Bay): Listed UL 1801, NEBS
Model 801NLEB (Power Bay): Listed UL 1950, NEBS
Model 801NLDB (Power Bay):
Lists (All): Listed UL 1950
Lists (0B, 05, 13, 21, 50,
63, 64, 65, 66, 67, 70, 71): NEBS
Framework Type: Seismic Rated (Zone 4) Box Framework
Power Bay:
Width: 24.375 Inches
Depth: 30 Inches
Height: 84 Inches
Access: Front and Rear Access for Installation and Maintenance, Front for Operation.
Distribution Bay:
Width: 31.375 Inches
Depth: 30 Inches
Height: 84 Inches
Access: Front and Rear Access for Installation and Maintenance, Front for Operation.
Maximum Number of
Power Bays per System: 7
Maximum Number of
Distribution Bays per System: 8
Control: Microprocessor
Color: Gray

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 5 Revision T, September 28, 2022
Environment: 0°C to +40°C (+32°F to +104°F)
Configurations: Plant is designed for centralized configuration with customer supplied Main Battery
Termination Bars (MBTB’s). Vertiv has standard MBTB’S in 4000, 6000, 10000,
and 16000 ampere capacities. The ultimate plant capacity is determined by the
capacity of the MBTB’S.
Plant can be configured for distribution applications by bay-to-bay cabling up to
9600 amperes.

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 6 Revision T, September 28, 2022
TABLE OF CONTENTS
SYSTEM OVERVIEW............................................................................................................................................................................................................. 1
MAIN COMPONENTS ILLUSTRATIONS..........................................................................................................................................................................8
582140001 Power Bays .................................................................................................................................................................................................8
582140001 Distribution Bays.......................................................................................................................................................................................9
582140001 Power Bays Monitor and Control Diagram.......................................................................................................................................10
582140001 Distribution Bays Monitor and Control Diagram.............................................................................................................................10
LIST DESCRIPTIONS ...........................................................................................................................................................................................................11
List 0A: 380/480VAC Plant Input Voltage......................................................................................................................................................................................11
List 0B: 208VAC Plant Input Voltage .................................................................................................................................................................................................11
List 04: Primary Power Bay (2 AC Input Feeds) ..........................................................................................................................................................................11
List 05: Primary Power Bay (12 or 24 AC Input Feeds) ..........................................................................................................................................................12
List 06: Primary Power Bay (6 AC Input Feeds).........................................................................................................................................................................12
List 12: Secondary Power Bay (2 AC Input Feeds) ....................................................................................................................................................................13
List 13: Secondary Power Bay (12 or 24 AC Input Feeds).....................................................................................................................................................14
List 14: Secondary Power Bay (6 AC Input Feeds)....................................................................................................................................................................14
List 16: Distribution Bay..............................................................................................................................................................................................................................15
List 21: Rectifier Module, 208V Input .................................................................................................................................................................................................15
List 22: Rectifier Module, 380/480V Input .....................................................................................................................................................................................16
List 24: Rectifier Module, 380/480V Input.....................................................................................................................................................................................16
List 50: Optional LMS Main CPU Circuit Card (Primary Power Bay).............................................................................................................................16
List 63: Optional LMS Expansion CPU Circuit Card (Secondary Power Bays) .......................................................................................................16
List 64: Interface Kit to a Spec. No. 582121900 Power System equipped with a DGU.......................................................................................16
List 65: Interface Kit to a Spec. No. 582121901 Power System equipped with an LMS1000 ..........................................................................17
List 66: Interface Kit to a Vortex Power System without a DGU or LMS1000 ........................................................................................................17
List 67: Interface Kit to a Model 1231H Legacy Power System with 1-8 Rectifiers ...............................................................................................17
List 70: Additional MCA Six (6) Output Form-C Relay Circuit Card..............................................................................................................................18
List 71: MCA I/O Circuit Card P/N 524550 .....................................................................................................................................................................................18
List 0C: 24 Position Bullet-Nose Circuit Breaker/Fuse Panel ............................................................................................................................................19
ACCESSORY DESCRIPTIONS .........................................................................................................................................................................................20
Seismic Anchor Kit, P/N 545387 ..............................................................................................................................................................................20
Seismic Anchor Isolation Kit, P/N 545388.............................................................................................................................................................20
Main Battery Termination Bars (MBTB’s) .............................................................................................................................................................20
Distribution Device and Load Lug Locations.......................................................................................................................................................20
Distribution Devices.................................................................................................................................................................................................... 24
218 Circuit Breaker Assemblies .............................................................................................................................................................................................................24
TPL Fuses and Fuseholder Assemblies............................................................................................................................................................................................28
Bullet Nose-Type Circuit Breakers and Bullet Nose-Type Fuseholders e/w TLS/TPS Fuses........................................................................31
Optional Bullet Nose-Type 10-Position GMT Fuse Module for List C...........................................................................................................................36
Replacement Alarm, Reference, and Control Fuses ........................................................................................................................................... 37
Fuseblock Located in Bay’s Left Center ..........................................................................................................................................................................................37
Input and Alarm Fuse on Optional Bullet Nose-Type 10-Position GMT Fuse Module, P/N 509128 ..........................................................38
Wiring Components..................................................................................................................................................................................................... 39
Load Distribution Wire Sizes and Lugs Selection (Distribution Bay)............................................................................................................................39
Power Bay DC Output Cable Sizes and Lugs Selection.........................................................................................................................................................43
Distribution Bay DC Input Cable Sizes and Lugs Selection.................................................................................................................................................45
Power Bay Frame Grounding Wire Sizes and Lugs Selection ............................................................................................................................................47
Distribution Bay Frame Grounding Wire Sizes and Lugs Selection................................................................................................................................48
AC Input (12 or 24 AC Input Feeds) Wire and Conduit Sizes, Branch Circuit Protection, and Lugs Selection Lists 5
and 13......................................................................................................................................................................................................................................................................49
AC Input (6 AC Input Feeds) Wire and Conduit Sizes, Branch Circuit Protection, and Lugs Selection Lists 6 and 14.................52
AC Input (2 AC Input Feeds) Wire and Conduit Sizes, Branch Circuit Protection, and Lugs Selection Lists 4 and 12................58
External Alarm, Reference, and Control Wire Sizes - Power Bays....................................................................................................................................61
Optional Battery Charge Temperature Compensation Probe for Digital Compensation ......................................................................... 62
Replacement/Additional MCA Network Cable..................................................................................................................................................... 63
Replacement/Additional LMS Network Cable ..................................................................................................................................................... 63
Replacement Modules and Circuit Cards..............................................................................................................................................................64

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 7 Revision T, September 28, 2022
SPECIFICATIONS................................................................................................................................................................................................................ 65
1. System...................................................................................................................................................................................................................... 65
1.1 DC Operating Voltage........................................................................................................................................................................................................................65
1.2 Environmental Ratings.......................................................................................................................................................................................................................65
1.3Compliance Information....................................................................................................................................................................................................................66
1.4 Local Controls and Indicators .......................................................................................................................................................................................................66
2. Distribution Bay .....................................................................................................................................................................................................66
2.1 DC Ratings.................................................................................................................................................................................................................................................66
3. Rectifier Module (Model R48-5800, Spec. No. 1R485800)......................................................................................................................... 67
3.1 DC Output Ratings ...............................................................................................................................................................................................................................67
3.2 AC Input Ratings ...................................................................................................................................................................................................................................69
3.3 Environmental Ratings.......................................................................................................................................................................................................................70
3.4 Standard Features................................................................................................................................................................................................................................72
4. Rectifier Module (Model R48-5800L, Spec. No. 1R485800L).................................................................................................................... 76
4.1 DC Output Ratings ...............................................................................................................................................................................................................................76
4.2 AC Input Ratings ...................................................................................................................................................................................................................................78
4.3 Environmental Ratings.......................................................................................................................................................................................................................79
4.4 Standard Features.................................................................................................................................................................................................................................81
5. Rectifier Module (Model R48-5800E Spec. No. 1R485800E)..................................................................................................................... 85
5.1 DC Output Ratings ...............................................................................................................................................................................................................................85
5.2 AC Input Ratings ...................................................................................................................................................................................................................................87
5.3 Environmental Ratings.......................................................................................................................................................................................................................88
5.4Standard Features...............................................................................................................................................................................................................................90
6. MCA .......................................................................................................................................................................................................................... 93
6.1 Standard Features................................................................................................................................................................................................................................93
7. Optional LMS Monitoring System ................................................................................................................................................................... 105
MECHANICAL SPECIFICATIONS................................................................................................................................................................................. 106
Floor Hole Drilling Pattern Dimensions - Power Bays...................................................................................................................................... 106
Floor Hole Drilling Pattern Dimensions - Distribution Bays ........................................................................................................................... 106
Overall Dimensions - Primary and Secondary Power Bays............................................................................................................................. 107
Overall Dimensions - Distribution Bays ............................................................................................................................................................... 108
Overall Dimensions – Optional Battery Charge Digital Temperature Compensation Probes P/N 107021 (25 feet) and
P/N 106824 (100 feet) ..............................................................................................................................................................................................109
RELATED DOCUMENTATION .......................................................................................................................................................................................110

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 8 Revision T, September 28, 2022
MAIN COMPONENTS ILLUSTRATIONS
582140001 Power Bays
List 04: Primary Power Bay
(2 AC Input Feeds)
(Includes Circuit Breakers,
One per Two Rectifier
Modules)
List 05:
Primary Power Bay
(12 or 24 AC Input Feeds)
List 06:
Primary Power Bay
(6 Input Feeds)
480V only.
List 12:
Secondary Power Bay
(2 AC Input Feeds)
(Includes Circuit Breakers,
One per Two Rectifier
Modules)
List 13:
Secondary Power Bay
(12 or 24 AC Input Feeds)
List 14:
Secondary Power Bay
(6 Input Feeds)
480V only.
(see Monitor and Control
Diagram)
Front View
AC Input Termination Panel
and Optional AC Input
Breakers
List 0A: 380/480VAC
Plant Input
List 0B
: 208VAC Plant
Input
Rectifier Module
Mounting Positions
List 21
: Rectifier Module
(208VAC Input)
List 22
: Rectifier Module
(380/480VAC
Input)

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 9 Revision T, September 28, 2022
582140001 Distribution Bays
List 16: Distribution Bay
Distribution Bus
(see
Distribution
Devices
in
ACCESSORY
DESCRIPTIONS
Section for
distribution options)
Distribution Bus
(see
Distribution
Devices
in
ACCESSORY
DESCRIPTIONS
Section for
distribution options)
Distribution Bus
(see
Distribution
Devices
in
ACCESSORY
DESCRIPTIONS
Section for
distribution options)
Distribution Bus
(see Distri
bution
Devices
in
ACCESSORY
DESCRIPTIONS
Section for
distribution options)
(see Monitor and Control
Diagram)
Blank Panel
or
List 0C:
Bullet Fuse/Circuit
Breaker Panel
Front door removed in
illustration for clarity.
Front View

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 10 Revision T, September 28, 2022
582140001 Power Bays Monitor and Control Diagram
582140001
Distribution Bays Monitor and Control Diagram
List 50: Optional LMS Main CPU
Circuit Card
or
List 63:
Optional LMS Expansion CPU
Circuit Card
Refer to SAG586505000
for additional LMS options.
Available MCA Input/Output (I/O)
Circuit Cards
List 70:
MCA Customer Alarm Relay
Circuit Card (Six [6] Form-C
Contacts)
List 71:
MCA Analog Input/Output and
Binary Input Circuit Card
P/O List 4 and 5: MCA Circuit Card
(Primary Bay)
P/O List 12 and 13:
ROUTER Circuit Card
(Secondary Bay)
P/O Lists 16:
ROUTER Circuit Card
Front View
Battery Charge Temperature
Compensation Probe Connector

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 11 Revision T, September 28, 2022
LIST DESCRIPTIONS
List 0A: 380/480VAC Plant Input Voltage
Features
♦Specifies 380/480VAC Plant Input Voltage.
List 0B: 208VAC Plant Input Voltage
Features
♦Specifies 208VAC Plant Input Voltage.
List 04: Primary Power Bay (2 AC Input Feeds)
Features
♦Provides common equipment for one (1) Power Bay rated for up to 2400 amperes.
♦Mounted in a 7'0"H x 24.375"W x 30"D seismic rated (Zone 4) box framework.
♦Provides twenty-four (24) Rectifier Module mounting positions.
♦Provides an AC input termination panel that accepts two (2) AC input branch circuits, one (1) per twelve (12) Rectifier
Module mounting positions. A 60A AC input circuit breaker rated for 65kA interrupting capacity is provided for each pair
of rectifier positions in the List B Bay. A 30A AC input circuit breaker rated for 22kA interrupting capacity is provided for
each pair of rectifier positions in the List A Bay.
♦Provides the MCA Assembly and Local MCA Control Panel.
♦Provides mounting for optional LMS Main CPU circuit card.
♦Provides a seven-slot card cage for mounting MCA customer alarm relay circuit cards, MCA I/O circuit cards, and/or
optional LMS I/O circuit cards. Two (2) MCA customer alarm relay circuit cards furnished, providing twelve (12) Form-C
relay contacts
♦Side cover panels are factory installed on both sides of the bay.
Restrictions
Only one (1) Primary Bay per power system required.
Ordering Notes
1) Specify List A (380/480VAC Input) or List B (208VAC Input).
2) Order up to twenty-four (24) Rectifiers Modules per bay per List 21 (208VAC Input) or List 22 (380/480VAC Input).
3) Order additional MCA customer alarm relay circuit card(s) as required per List 70, and optional MCA I/O circuit cards per
List 71.
4) Order a Battery Charge Temperature Compensation Probe as required per Optional Battery Charge Temperature
Compensation Probe for Digital Compensation in the ACCESSORY DESCRIPTIONS section.
5) Order optional LMS Monitor and LMS options as required per List 50, and SAG586505000.
6) Order “Power Bay DC Output” lugs as required per Power Bay DC Output Cable Sizes and Lugs Selection in the
ACCESSORY DESCRIPTIONS section.
7) Order “AC Input” lugs as required per AC Input (Dual AC Input Feeds) Wire and Conduit Sizes, Branch Circuit Protection,
and Lugs Selection in the ACCESSORY DESCRIPTIONS section.
8) Order “Power Bay Frame Grounding” lugs as required per Power Bay Frame Grounding Wire Sizes and Lugs Selection in
the ACCESSORY DESCRIPTIONS section.
9) If the system is to be connected to an existing system with an MCA, refer to List 64, 65, 66, and 67.

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 12 Revision T, September 28, 2022
List 05: Primary Power Bay (12 or 24 AC Input Feeds)
Features
♦Provides common equipment for one (1) Power Bay rated for up to 2400 amperes.
♦Mounted in a 7'0"H x 24.375"W x 30"D seismic rated (Zone 4) box framework.
♦Provides twenty-four (24) Rectifier Module mounting positions.
♦Provides an AC input termination panel that accepts twenty-four (24) AC input branch circuits [one (1) per Rectifier
Module mounting position] or twelve (12) AC input branch circuits [one (1) per two Rectifier Module mounting positions].
The bay ships with the 12 Feed option installed.
♦Provides the MCA Assembly and Local MCA Control Panel.
♦Provides mounting for optional LMS Main CPU circuit card.
♦Provides a seven-slot card cage for mounting MCA customer alarm relay circuit cards, MCA I/O circuit cards, and/or
optional LMS I/O circuit cards. Two (2) MCA customer alarm relay circuit cards furnished, providing twelve (12) Form-C
relay contacts.
♦Side cover panels are factory installed on both sides of the bay.
Restrictions
Only one (1) Primary Bay per power system required.
Ordering Notes
1) Specify List A (380/480VAC Input) or List B (208VAC Input).
2) Order up to twenty-four (24) Rectifiers Modules per bay per List 21 (208VAC Input) or List 22 (380/480VAC Input).
3) Order additional MCA customer alarm relay circuit card(s) as required per List 70, and optional MCA I/O circuit cards per
List 71.
4) Order a Battery Charge Temperature Compensation Probe as required per Optional Battery Charge Temperature
Compensation Probe for Digital Compensation in the ACCESSORY DESCRIPTIONS section.
5) Order optional LMS Monitor and LMS options as required per List 50, and SAG586505000.
6) Order “Power Bay DC Output” lugs as required per Power Bay DC Output Cable Sizes and Lugs Selection in the
ACCESSORY DESCRIPTIONS section.
7) Order “AC Input Ground” lugs as required per AC Input (Individual/Twin AC Input Feeds) Wire and Conduit Sizes, Branch
Circuit Protection, and Lugs Selection in the ACCESSORY DESCRIPTIONS section.
8) Order “Power Bay Frame Grounding” lugs as required per Power Bay Frame Grounding Wire Sizes and Lugs Selection in
the ACCESSORY DESCRIPTIONS section.
9) If the system is to be connected to an existing system with an MCA, refer to List 64, 65, 66, and 67.
List 06: Primary Power Bay (6 AC Input Feeds)
Features
♦Provides common equipment for one (1) Power Bay rated for up to 2400 amperes.
♦Mounted in a 7'0"H x 24.375"W x 30"D seismic rated (Zone 4) box framework.
♦Provides twenty-four (24) Rectifier Module mounting positions.
♦Provides an AC input termination panel that accepts six (6) AC input branch circuits [one (1) per four Rectifier Module
mounting positions].
♦Provides the MCA Assembly and Local MCA Control Panel.
♦Provides mounting for optional LMS Main CPU circuit card.
♦Provides a seven-slot card cage for mounting MCA customer alarm relay circuit cards, MCA I/O circuit cards, and/or
optional LMS I/O circuit cards. Two (2) MCA customer alarm relay circuit cards furnished, providing twelve (12) Form-C
relay contacts.
♦Side cover panels are factory installed on both sides of the bay.
Restrictions
Only one (1) Primary Bay per power system required. 480V only.
Ordering Notes
1) Specify List A (480VAC Input).

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 13 Revision T, September 28, 2022
2) Order up to twenty-four (24) Rectifiers Modules per bay per List 22 (380/480VAC Input).
3) Order additional MCA customer alarm relay circuit card(s) as required per List 70, and optional MCA I/O circuit cards per
List 71.
4) Order a Battery Charge Temperature Compensation Probe as required per Optional Battery Charge Temperature
Compensation Probe for Digital Compensation in the ACCESSORY DESCRIPTIONS section.
5) Order optional LMS Monitor and LMS options as required per List 50, and SAG586505000.
6) Order “Power Bay DC Output” lugs as required per Power Bay DC Output Cable Sizes and Lugs Selection in the
ACCESSORY DESCRIPTIONS section.
7) Order “AC Input Ground” lugs as required per AC Input Wire and Conduit Sizes, Branch Circuit Protection, and Lugs
Selection in the ACCESSORY DESCRIPTIONS section.
8) Order “Power Bay Frame Grounding” lugs as required per Power Bay Frame Grounding Wire Sizes and Lugs Selection in
the ACCESSORY DESCRIPTIONS section.
9) If the system is to be connected to an existing system with an MCA, refer to List 64, 65, 66, and 67.
List 12: Secondary Power Bay (2 AC Input Feeds)
Features
♦Provides common equipment for one (1) Power Bay rated for up to 2400 amperes.
♦Mounted in a 7'0"H x 24.375"W x 30"D seismic rated (Zone 4) box framework.
♦Provides twenty-four (24) Rectifier Module mounting positions.
♦Provides an AC input termination panel that accepts two (2) AC input branch circuits, one (1) per twelve (12) Rectifier
Module mounting positions. A 60A AC input circuit breaker rated for 65kA interrupting capacity is provided for each pair
of rectifier positions in the List B Bay. A 30A AC input circuit breaker rated for 22kA interrupting capacity is provided for
each pair of rectifier positions in the List A Bay.
♦Includes a Router Assembly for bay communication to the MCA in the Primary Power Bay.
♦Provides mounting for optional LMS Expansion CPU circuit card.
♦Provides a seven-slot card cage for mounting MCA customer alarm relay circuit cards, MCA I/O circuit cards, and/or
optional LMS I/O circuit cards.
♦MCA Network bay interconnect cable provided (Qty. 1 P/N 514642).
Ordering Notes
1) Specify List A (380/480VAC Input) or List B (208VAC Input).
2) Order up to twenty-four (24) Rectifiers Modules per bay per List 21 (208VAC Input) or List 22 (380/480VAC Input).
3) Order additional MCA customer alarm relay circuit card(s) as required per List 70, and optional MCA I/O circuit cards per
List 71.
4) Order optional LMS Expansion CPU circuit card and LMS options as required per List 63, and SAG586505000. Also
order additional LMS Network cables as required per Replacement/Additional LMS Network Cables.
5) Order “Power Bay DC Output” lugs as required per Power Bay DC Output Cable Sizes and Lugs Selection in the
ACCESSORY DESCRIPTIONS section.
6) Order “AC Input” lugs as required per AC Input (Dual AC Input Feeds) Wire and Conduit Sizes, Branch Circuit Protection,
and Lugs Selection in the ACCESSORY DESCRIPTIONS section.
7) Order “Power Bay Frame Grounding” lugs as required per Power Bay Frame Grounding Wire Sizes and Lugs Selection in
the ACCESSORY DESCRIPTIONS section.
8) If a different length LMS and/or MCA Network cable is required, order per Replacement/Additional LMS Network Cables
and/or Replacement/Additional MCA Network Cables. Refer to the Installation Instructions (Section 6016) for Network
cabling requirements.
9) Side cover panels are not provided. When bays are placed next to each other, the side cover panels from the ‘inside’ side
of the Primary Power Bay are moved to the ‘outside’ side of the last Secondary Power Bay. In installations where a
Secondary Power Bay is placed by itself, order (4) P/N 535092 side cover panels.

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 14 Revision T, September 28, 2022
List 13: Secondary Power Bay (12 or 24 AC Input Feeds)
Features
♦Provides common equipment for one (1) Power Bay rated for up to 2400 amperes.
♦Mounted in a 7'0"H x 24.375"W x 30"D seismic rated (Zone 4) box framework.
♦Provides twenty-four (24) Rectifier Module mounting positions.
♦Provides an AC input termination panel that accepts twenty-four (24) AC input branch circuits [one (1) per Rectifier
Module mounting position] or twelve (12) AC input branch circuits [one (1) per two Rectifier Module mounting positions].
The bay ships with the 12 Feed option installed.
♦Includes a Router Assembly for bay communication to the MCA in the Primary Power Bay.
♦Provides mounting for optional LMS Expansion CPU circuit card.
♦Provides a seven-slot card cage for mounting MCA customer alarm relay circuit cards, MCA I/O circuit cards, and/or
optional LMS I/O circuit cards.
♦MCA Network bay interconnect cable provided (Qty. 1 P/N 514642).
Ordering Notes
1) Specify List A (380/480VAC Input) or List B (208VAC Input).
2) Order up to twenty-four (24) Rectifiers Modules per bay per List 21 (208VAC Input) or List 22 (380/480VAC Input).
3) Order additional MCA customer alarm relay circuit card(s) as required per List 70, and optional MCA I/O circuit cards per
List 71.
4) Order optional LMS Expansion CPU circuit card and LMS options as required per List 63, and SAG586505000. Also
order additional LMS Network cables as required per Replacement/Additional LMS Network Cables.
5) Order “Power Bay DC Output” lugs as required per Power Bay DC Output Cable Sizes and Lugs Selection in the
ACCESSORY DESCRIPTIONS section.
6) Order “AC Input Ground” lugs as required per AC Input (Individual/Twin AC Input Feeds) Wire and Conduit Sizes, Branch
Circuit Protection, and Lugs Selection in the ACCESSORY DESCRIPTIONS section.
7) Order “Power Bay Frame Grounding” lugs as required per Power Bay Frame Grounding Wire Sizes and Lugs Selection in
the ACCESSORY DESCRIPTIONS section.
8) If a different length LMS and/or MCA Network cable is required, order per Replacement/Additional LMS Network Cables
and/or Replacement/Additional MCA Network Cables. Refer to the Installation Instructions (Section 6016) for Network
cabling requirements.
9) Side cover panels are not provided. When bays are placed next to each other, the side cover panels from the ‘inside’ side
of the Primary Power Bay are moved to the ‘outside’ side of the last Secondary Power Bay. In installations where a
Secondary Power Bay is placed by itself, order (4) P/N 535092 side cover panels.
List 14: Secondary Power Bay (6 AC Input Feeds)
Features
♦Provides common equipment for one (1) Power Bay rated for up to 2400 amperes.
♦Mounted in a 7'0"H x 24.375"W x 30"D seismic rated (Zone 4) box framework.
♦Provides twenty-four (24) Rectifier Module mounting positions.
♦Provides an AC input termination panel that accepts six (6) AC input branch circuits [one (1) per four Rectifier Module
mounting positions].
♦Includes a Router Assembly for bay communication to the MCA in the Primary Power Bay.
♦Provides mounting for optional LMS Expansion CPU circuit card.
♦Provides a seven-slot card cage for mounting MCA customer alarm relay circuit cards, MCA I/O circuit cards, and/or
optional LMS I/O circuit cards.
♦MCA Network bay interconnect cable provided (Qty. 1 P/N 514642).
Restrictions
480V only.
Ordering Notes
1) Specify List A (480VAC Input).

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 15 Revision T, September 28, 2022
2) Order up to twenty-four (24) Rectifiers Modules per bay per List 22 (380/480VAC Input).
3) Order additional MCA customer alarm relay circuit card(s) as required per List 70, and optional MCA I/O circuit cards per
List 71.
4) Order optional LMS Expansion CPU circuit card and LMS options as required per List 63, and SAG586505000. Also
order additional LMS Network cables as required per Replacement/Additional LMS Network Cables.
5) Order “Power Bay DC Output” lugs as required per Power Bay DC Output Cable Sizes and Lugs Selection in the
ACCESSORY DESCRIPTIONS section.
6) Order “AC Input Ground” lugs as required per AC Input (Individual/Twin AC Input Feeds) Wire and Conduit Sizes, Branch
Circuit Protection, and Lugs Selection in the ACCESSORY DESCRIPTIONS section.
7) Order “Power Bay Frame Grounding” lugs as required per Power Bay Frame Grounding Wire Sizes and Lugs Selection in
the ACCESSORY DESCRIPTIONS section.
8) If a different length LMS and/or MCA Network cable is required, order per Replacement/Additional LMS Network Cables
and/or Replacement/Additional MCA Network Cables. Refer to the Installation Instructions (Section 6016) for Network
cabling requirements.
9) Side cover panels are not provided. When bays are placed next to each other, the side cover panels from the ‘inside’ side
of the Primary Power Bay are moved to the ‘outside’ side of the last Secondary Power Bay. In installations where a
Secondary Power Bay is placed by itself, order (4) P/N 535092 side cover panels.
List 16: Distribution Bay
Features
♦Provides common equipment for one (1) Distribution Bay rated for up to 6000 amperes.
♦Mounted in a 7'0"H x 31.375"W x 30"D seismic rated (Zone 4) box framework.
♦Provides forty-eight (48) distribution device mounting positions.
♦Provides four (4) buses of distribution. Each bus contains an MCA monitoring circuit card; which can be set for no group
designation, Group A designation, or Group B designation.
♦Includes a Router Assembly for bay communication to the MCA in the Primary Power Bay.
♦MCA Network bay interconnect cable provided (P/N 514644).
Ordering Notes
1) Order distribution fuse and/or circuit breaker devices as required per Distribution Devices in the ACCESSORY
DESCRIPTIONS section.
2) Order load distribution lugs as required per Load Distribution Wire Sizes and Lugs Selection (Distribution Bay) in the
ACCESSORY DESCRIPTIONS section.
3) Order “Distribution Bay DC Input” lugs as required per Distribution Bay DC Input Cable Sizes and Lugs Selection in the
ACCESSORY DESCRIPTIONS section.
4) Order “Distribution Bay Frame Grounding” lugs as required per Distribution Bay Frame Grounding Wire Sizes and Lugs
Selection in the ACCESSORY DESCRIPTIONS section.
5) Order one (1) “Twenty-Four (24) Position Bullet-Nose Circuit Breaker/Fuse Panel” per Distribution Bay as required per
List C.
6) If a different length MCA Network cable is required, order per Replacement/Additional MCA Network Cables. Refer to
the Installation Instructions (Section 6016) for Network cabling requirements.
7) Side cover panels are factory installed on one side of the bay. In installations where a Distribution Bay is placed by itself,
order (2) P/N 528633 side cover panels for the other side.
List 21: Rectifier Module, 208V Input
Features
♦Model R48-5800L, Spec. No. 1R485800L, 100A / 48 volt rectifier module.
Restrictions
For use in List B bays only.
Ordering Notes
1) Order List 21 Rectifier Modules as required. Each Power Bay holds up to twenty-four (24) Rectifier Modules.

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 16 Revision T, September 28, 2022
List 22: Rectifier Module, 380/480V Input
Features
♦Model R48-5800, Spec. No. 1R485800, 100A / 48 volt rectifier module.
Restrictions
For use in List A bays only.
Ordering Notes
1) Order List 22 Rectifier Modules as required. Each Power Bay holds up to twenty-four (24) Rectifier Modules.
List 24: Rectifier Module, 380/480V Input
Features
♦Model R48-5800e, Spec. No. 1R485800e, 100A / 48 volt rectifier module.
Restrictions
For use in List A bays only. Requires that the system Router software is version 2.5.0.0 or higher.
Ordering Notes
Order List 24 Rectifier Modules as required. Each Power Bay holds up to twenty-four (24) Rectifier Modules.
List 50: Optional LMS Main CPU Circuit Card (Primary Power Bay)
Features
♦Provides the LMS Monitoring System.
♦Refer to SAG586505000 for further information.
Restrictions
The LMS Monitoring System Main CPU circuit card is mounted in the Primary Power Bay only.
Ordering Notes
1) Order the optional LMS Monitor if increased monitoring capabilities are required. Order the LMS Main CPU circuit card
(List 50) for the Primary Power Bay. Order the LMS Expansion CPU circuit card (List 63) for Secondary Power Bays that
are to be equipped with LMS I/O circuit cards.
2) Order additional LMS Network cables as required per Replacement/Additional LMS Network Cables. Note that an LMS
Network cable is factory provided with List 63.
3) This List option only provides the LMS CPU circuit card for the Primary Power Bay, additional LMS options must be
ordered separately per SAG586505000.
List 63: Optional LMS Expansion CPU Circuit Card (Secondary Power Bays)
Features
♦Allows LMS I/O cards to be installed in Secondary Power Bays.
♦LMS Network bay interconnect cable provided (Qty. 1 P/N 514639).
Restrictions
The LMS Monitoring System Expansion CPU circuit cards are mounted in Secondary Power Bays (required only if LMS I/O
circuit cards are to be installed in the same bay).
Ordering Notes
1) Order the LMS Expansion CPU circuit card for Secondary Power Bays that are to be equipped with LMS I/O circuit cards.
List 64: Interface Kit to a Spec. No. 582121900 Power System equipped with a DGU
Features
♦Provides the following...
LMS Dual MCA Interface Software Option
LMS Gateway Software Option

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 17 Revision T, September 28, 2022
P/N 526843 50’ LMS Dual MCA Option Cable
P/N 548009 50’ LMS Gateway Port Cable
♦LMS Dual MCA Interface Software Option enables the Spec. No. 582140001 Power System to be integrated with an
existing Power System. Specifically, List 64 allows the MCA in Spec. No. 582140001 to interface with the MCA in a Spec.
No. 582121900 via the LMS in Spec. No. 582140001. Refer to the LMS documentation for further information.
♦LMS Gateway Software Option allows the LMS to emulate a “dumb” RS-232 asynchronous terminal interface.
Specifically, List 64 enables user input through either a local or remote LMS port to be directed to a DGU connected to
the LMS Gateway port. Refer to the LMS documentation for further information.
Restrictions
Operation of Energy Management is disabled with this option installed.
The Gateway port is provided via the port located on the front of the LMS CPU circuit card installed in the Spec. No.
582140001 Primary Bay.
Ordering Notes
1) Order as required.
List 65: Interface Kit to a Spec. No. 582121901 Power System equipped with an LMS1000
Features
♦Provides the following...
LMS Dual MCA Interface Software Option
P/N 506153 LMS Expansion CPU Card
P/N 514641 150’ Echelon Cable
P/N 526843 50’ LMS Dual MCA Option Cable
♦LMS Dual MCA Interface Software Option enables the Spec. No. 582140001 Power System to be integrated with an
existing Power System. Specifically, List 65 allows the MCA in Spec. No. 582140001 to interface with the MCA in Spec.
No. 582121901 via the LMS in Spec. No. 582140001. Refer to the LMS documentation for further information.
Restrictions
Operation of Energy Management is disabled with this option installed.
The Main LMS CPU card in 582121901 must be replaced with the Expansion LMS CPU card (P/N 506153) provided with List
65.
Ordering Notes
1) Order as required.
List 66: Interface Kit to a Vortex Power System without a DGU or LMS1000
Features
♦Provides the following...
LMS Dual MCA Interface Software Option
P/N 526843 50’ LMS Dual MCA Option Cable
♦LMS Dual MCA Interface Software Option enables the Spec. No. 582140001 Power System to be integrated with an
existing Power System. Specifically, List 66 allows the MCA in Spec. No. 582140001 to interface with the MCA in a Vortex
Power System via the LMS in Spec. No. 582140001. Refer to the LMS documentation for further information.
Restrictions
Operation of Energy Management is disabled with this option installed.
Ordering Notes
1) Order as required.
List 67: Interface Kit to a Model 1231H Legacy Power System with 1-8 Rectifiers
Features
♦Provides the following...
LMS Gateway Software Option
P/N 548009 50’ LMS Gateway Port Cable

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 18 Revision T, September 28, 2022
Two (2) P/N 506336 LMS 4-Input Universal Analog Cards
One (1) P/N 506334 LMS 8-Input Binary Card
♦LMS Gateway Software Option allows the LMS to emulate a “dumb” RS-232 asynchronous terminal interface.
Specifically, List 67 enables user input through either a local or remote LMS port to be directed to a DGU (in the legacy
plant) connected to the LMS Gateway port. Refer to the LMS documentation for further information.
♦The analog and binary DGU I/O cards provide monitoring of the legacy system’s rectifiers
Restrictions
LMS Channels must be configured.
Ordering Notes
1) Order as required.
List 70: Additional MCA Six (6) Output Form-C Relay Circuit Card
Features
♦Provides six relays each with one set of Form-C relay contacts.
♦These relays are used for alarm applications and can be programmed by the user.
♦Refer to the "Specifications" section of this document for further information.
♦Plugs into any slot in 7-position card cage in Primary and Secondary Power Bays.
♦User maps relay closure to any or multiple programmable alarm functions.
Restrictions
Relay contacts rated for 2A at 30 volts DC.
The system may contain up to 16 MCA Relay circuit cards.
Ordering Notes
1) Order one (1) List 70 relay circuit card for every six (6) customer relay contacts to be provided by the MCA.
List 71: MCA I/O Circuit Card P/N 524550
Features
♦Provides 1 analog input, 1 analog output (for remote plant output current monitoring), and 4 binary inputs.
♦Refer to the "Specifications" section of this document for further information.
♦Plugs into any slot in 7-position card cage in Primary and Secondary Power Bays.
Restrictions
The system may contain up to 16 MCA I/O circuit cards.
Only one (1) P/N 524550 card can be installed per bay.
Analog input and output rating = 0-50mv DC.
Binary input rating = dry contact.
Analog inputs should be protected by a 49.9 ohm resistor.
Recommended to use current limiting resistors to protect binary input wiring.
Ordering Notes
1) Order optional MCA I/O circuit cards as required.
2) Use of the “Alternate Current Limit” feature requires that an MCA I/O circuit card be installed.

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 19 Revision T, September 28, 2022
List 0C: 24 Position Bullet-Nose Circuit Breaker/Fuse Panel
Features
♦Provides twenty-four (24) Bullet Nose
Device positions.
♦Accepts a choice of TLS/TPS-type
fuseholders, Bullet Nose-Type circuit
breakers, or Bullet Nose-Type GMT Fuse
Modules.
♦The List C Fuse/Circuit Breaker Panel is
equipped with one (1) shunt for all
distribution positions for MCA load
current measurements.
♦Refer also to Bullet Nose-Type Circuit
Breakers and Bullet Nose-Type
Fuseholders e/w TLS/TPS Fuses and
Optional Bullet Nose-Type 10-Position
GMT Fuse Module for List C.
Restrictions
Each Distribution Bay can be equipped with
only one (1) List C panel.
The List C Circuit Breaker/Fuse Panel
requires distribution position #12 in the Bus
#1 Distribution Panel.
Current monitoring for the List C Fuse/Circuit
Breaker Panel is for the complete panel.
Circuit Breakers and/or fuses are not
individually monitored.
When installed, the bay can be loaded with up
to (47) 218 Circuit Breakers or (23) TPL Fuses
and (24) Bullet Nose Circuit Breakers or TLS/TPS Fuses.
The List C Circuit Breaker/Fuse Panel is rated for a maximum continuous load of 500 amps.
The total load combination of List C and Distribution Panel #1 cannot exceed 1500A.
Ordering Notes
1) Order as required.
2) Also order distribution fuses, circuit breakers, and/or Bullet Nose-Type 10-Position GMT Fuse Modules as required per
Distribution Devices in the ACCESSORY DESCRIPTIONS section.
Optional List C
Bullet Nose Device Panel
Front door removed in
illustration for clarity.

Vertiv™NetSure™-48 VDC Power System
System Application Guide
Spec. No: 582140001 Proprietary and Confidential © 2022 Vertiv Group Corp. SAG582140001
Model No: 801NLDB, 801NLEB, 801NL-BPage 20 Revision T, September 28, 2022
ACCESSORY DESCRIPTIONS
Seismic Anchor Kit, P/N 545387
Features
Provides four (4) Relay Rack Seismic Mounting Anchors, P/N 216821200.
Ordering Notes
1) Order Seismic Anchor Kit, P/N 545387, as required.
Seismic Anchor Isolation Kit, P/N 545388
Features
Provides four (4) bushings, P/N 124866 (one per seismic anchor) and one (1) insulator, P/N 112490.
Ordering Notes
1) Order Seismic Isolation Anchor Kit, P/N 545388, as required.
Main Battery Termination Bars (MBTB’s)
Plant is designed for centralized configuration with customer supplied Main Battery Termination Bars (MBTB’s). Vertiv has
standard MBTB’S in 4000, 6000, 10000, and 16000 ampere capacities. The ultimate plant capacity is determined by the
capacity of the MBTB’S. Refer to the EA3434-41xx Series MBTB’s drawings.
Distribution Device and Load Lug Locations
Each Distribution Bay has four (4) distribution buses. Each distribution bus has twelve (12) fuse/circuit breaker device
mounting positions. Note that the various fuse/circuit breaker devices require different number of mounting positions, as
detailed in the following sections. Note also that each distribution bus is divided into half, and each half MUST be populated
with distribution devices as shown in the following illustration, without skipping any distribution device mounting positions
within each half. This allows automatic monitoring of each position and allows the controller to located all distribution
positions. The load side of each fuse/circuit breaker mounting position is bused to the rear of the bay. Each fuse/circuit
breaker device requires a load lug adapter plate kit that mounts to the appropriate load side busbars at the rear of the bay
(except 1-pole devices). Load return leads are terminated outside the bay to customer provided return busbars. See
following illustration.