Vertiv 582127000500 User manual

NetSure™ 7100 Series
-48 VDC Power System
Installation Manual
Specification Number: 582127000100, 582127000101, 582127000102, 582127000103, 582127000203, 582127000500
582127000501, 582127000502, 582127000503
Model Number: 7100

Vertiv™ NetSure™ 7100 Series -48 VDC Power System Installation Manual
Vertiv™ NetSure™ 7100 Series -48 VDC Power System Installation Manual
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 the accuracy and completeness of this document, Vertiv
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.
The products covered by this instruction manual are manufactured and/or
sold by Vertiv. This document is the property of Vertiv and contains
confidential and proprietary information owned by Vertiv. Any copying, use or
disclosure of it without the written permission of Vertiv is strictly prohibited.
Names of companies and products are trademarks or registered trademarks of
the respective companies. Any questions regarding usage of trademark
names should be directed to the original manufacturer.
Technical Support Site
If you encounter any installation or operational issues with your product, check the pertinent section of this
manual to see if the issue can be resolved by following outlined procedures.
Visit https://www.vertiv.com/en-us/support/ for additional assistance.

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TABLE OF CONTENTS
Admonishments Used in this Document..............................................................................................................................v
Important Safety Instructions.................................................................................................................................................vi
Safety Admonishments Definitions .........................................................................................................................................................................................................................vi
Safety and Regulatory Statements..........................................................................................................................................................................................................................vi
Déclarations de Sécurité et de Réglementation..........................................................................................................................................................................................vi
1Customer Documentation Package..................................................................................................................................1
2Installation Acceptance Checklist ....................................................................................................................................1
3Installing the System ............................................................................................................................................................2
3.1 General Requirements..............................................................................................................................................................................................................................................2
3.2 Securing the Relay Rack to the Floor.........................................................................................................................................................................................................3
3.3 Installing Battery Trays............................................................................................................................................................................................................................................4
3.4 Installing Optional Lug Adapter Busbar Kits, Part Nos. 534449 and 514714....................................................................................................... 11
3.5 Installing Circuit Breakers and Fuses.......................................................................................................................................................................................................13
4Setting Jumpers and Switch Options........................................................................................................................... 17
4.1 Circuit Card Locations............................................................................................................................................................................................................................................17
4.2 Jumper on System Interface Board .......................................................................................................................................................................................................... 18
4.3 Switch Setting on IB2 Controller Interface Board ........................................................................................................................................................................19
4.4 Switch Setting on Optional EIB Controller Extended Interface Board .....................................................................................................................19
5Making Electrical Connections .......................................................................................................................................21
5.1 Important Safety Instructions..........................................................................................................................................................................................................................21
5.2 Wiring Considerations.............................................................................................................................................................................................................................................21
5.3 Relay Rack Grounding Connection (Frame Ground) ...............................................................................................................................................................22
5.4 Central Office Ground Connection............................................................................................................................................................................................................22
5.5 SPD (Surge Protection Device) (if equipped) Earth Ground Connection............................................................................................................23
5.6 Nominal 208 VAC / 240 VAC Input and Equipment Grounding Connections................................................................................................ 24
5.7 External Alarm, Reference, Monitoring, and Control Connections ..............................................................................................................................27
5.7.1 Circuit Card Locations....................................................................................................................................................................................................................27
5.7.2 Temperature Probes ........................................................................................................................................................................................................................27
5.7.3 System Interface Board .................................................................................................................................................................................................................28
5.7.4 IB2 (Controller Interface Board) Connections (if required) .........................................................................................................................29
5.7.5 Optional EIB (Controller Extended Interface Board) Connections (if required)......................................................................34
5.8 Connecting a Device or System to the NCU CAN Bus (if required) .........................................................................................................................40
5.9 NCU Controller Ethernet Connection (if required) ....................................................................................................................................................................41
5.10 Load Connections .................................................................................................................................................................................................................................................... 42
5.10.1 Recommended Torques ..............................................................................................................................................................................................................42
5.10.2 Load Connections to Single Voltage Distribution Panels.............................................................................................................................42
5.10.3 Load Connections to Dual Voltage Distribution Panels................................................................................................................................. 42
5.10.4 Load Connections to GMT Distribution Fuse Block..........................................................................................................................................44
5.11 External Battery Connections ....................................................................................................................................................................................................................... 45
5.11.1 Important Safety Instructions .................................................................................................................................................................................................45
5.11.2 Recommended Torques ..............................................................................................................................................................................................................45
5.11.3 Battery Connections to Distribution Cabinet Battery Busbars................................................................................................................45

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5.12 Installing and Connecting Batteries in the Battery Trays (if furnished)................................................................................................................48
5.13 Special Application Rectifier Bus Landing Point Kit P/N 563686 .................................................................................................................................51
5.14 Generator Input Breaker Kit (P/N 564219) ........................................................................................................................................................................................52
6Installing the Rectifier and Converter Modules....................................................................................................... 53
7Initially Starting, Configuring, and Checking System Operation...................................................................... 55
7.1 Initial Startup Preparation..................................................................................................................................................................................................................................55
7.2 Initially Starting the System .............................................................................................................................................................................................................................55
7.3 NCU Controller Initialization ............................................................................................................................................................................................................................55
7.4 Checking System Status.....................................................................................................................................................................................................................................61
7.5 Final Steps ........................................................................................................................................................................................................................................................................61

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v
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
Safety Admonishments Definitions
Definitions of the safety admonishments used in this document are listed under “Admonishments Used in this Document” on page v.
Safety and Regulatory Statements
Refer to Section 4154 (provided with your customer documentation) for Safety and Regulatory Statements.
Déclarations de Sécurité et de Réglementation
Reportez-vous à la Section 4154 (fourni avec les documents de votre client) pour les déclarations de sécurité et de réglementation.

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1Customer Documentation Package
This document (IM582127000100) provides Installation Instructions for Vertiv™ NetSure™ -48 VDC Power System Model 7100, Spec.
No. 582127000, Lists 100, 101, 102, 103, 203, 500, 501, 502, and 503 only.
The complete Customer Documentation Package for Lists 100, 101, 102, 103, 203, 500, 501, 502, and 503 consists of…
-48 VDC Power System Installation Manual
•Power System Installation Instructions: IM582127000100
-48 VDC Power System User Manual
•Power System User Instructions: UM582127000100
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, 203, 500, 501, 502, and
503)
•Power System User Instructions: UM582127000100 (instructions for Lists 100, 101, 102, 103, 203, 500, 501, 502, and 503)
•NCU Controller User Instructions: UM1M830BNA
•Rectifier Instructions: UM1R482000e3
•-48 VDC to +24 VDC Converter Instructions: UM1C48241500
•-48 VDC to -58 VDC Converter Instructions: UM1C48582000P3
•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.
2Installation Acceptance Checklist
Provided in this section is an Installation Acceptance Checklist. This checklist helps ensure proper installation and initial operation of
the system. As the procedures presented in this document are completed, check the appropriate box on this list. If the procedure is
not required to be performed for your installation site, also check the box in this list to indicate that the procedure was read. When
installation is done, ensure that each block in this list has been checked. Some of these procedures may have been factory performed
for you.
NOTE! The system is not powered up until the end of this checklist.
NOTE! Some of these procedures may have been performed at the factory for you.

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Installing the System
Relay Rack Secured to Floor
Optional Battery Tray Installed
Optional Battery Tray Battery Disconnect Circuit Breaker Installed
Optional Lug Adapter Busbar Kits Installed
Circuit Breakers Installed
Fuses Installed
Setting Jumper and Switch Options
Jumper on System Interface Board Set
Factory Switch Setting on IB2 Interface Board Verified
Factory Switch Setting on Optional EIB Interface Board Verified
Making Electrical Connections
Relay Rack Frame Ground Connection Made
Central Office Ground Connection Made
SPD (Surge Protection Device) (if furnished) Earth Ground Connection Made
AC Input and AC Input Equipment Grounding Connections Made
External Alarm, Reference, Monitoring, and Control Connections Made
Ethernet Connection Made
Load Connections Made
Battery Connections Made
Batteries Installed and Connected in the Battery Trays (if furnished)
Installing the Modules
Rectifier and Converter Modules Installed
Initially Starting the System
System Started, Configured, and Checked
3Installing the System
3.1 General Requirements
•This product is intended only for installation in a restricted access location on or above a non-combustible surface.
•This product must be located in a controlled environment with access to Crafts persons only.
•This product is intended for installation in network telecommunication facilities (CO, vault, hut, or other environmentally
controlled electronic equipment enclosure).

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•This product is intended for connection to the common bonding network in a network telecommunication facility (CO, vault,
hut, or other environmentally controlled electronic equipment enclosure).
•The DC return connection to this system can remain isolated from system frame and chassis (DC-I).
•This system is suitable for installation as part of the Common Bonding Network (CBN).
•The installer should be familiar with the installation requirements and techniques to be used in securing the relay rack to the
floor.
•Rectifier, converter, and mounting assembly ventilating openings must not be blocked and temperature of air entering
rectifiers and converters must not exceed rated operating ambient temperature range found in SAG582127000.
•Clearance requirements are:
a) Recommended minimum aisle space clearance for the front of the bay is 2' 6".
b) Recommended minimum aisle space clearance for the rear of the bay to a wall or other solid surface is that which is
specified for proper module mounting assembly ventilation. Refer to System Application Guide SAG582127000 for
ventilation spacing requirements.
NOTE! Minimum spacing specified for ventilation may not permit replacement of certain components such as busbars or
module mounting assemblies.
3.2 Securing the Relay Rack to the Floor
Secure the relay rack to the floor per site requirements. Refer to “General Requirements” on page 2.
Ventilation Requirements
Refer to the “General Requirements” on page 2.
Relay Rack Floor Mounting Dimensions
Refer to Figure 3.1 for relay rack floor mounting dimensions.
Optional Relay Rack Isolation Kit
Refer to Figure 3.2 when using the Optional Relay Rack Isolation Kit.
Figure 3.1 Relay Rack Floor Mounting Dimensions
19.685
25.80
15.000
1.50
2.83
18.00
0.875
8 Places
Part Nos.
10009902, 562353, 564127, 564169 12.340
22.310
3.06
1.74
Notes:
1. All dimensions are in inches.

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Figure 3.2 Optional Relay Rack Isolation Kit Mounting
3.3 Installing Battery Trays
If battery trays are furnished with the system, battery trays are factory installed and wired. If battery trays are installed in the field,
customer must install and wire to the battery trays per the following procedures.
DANGER! The relay rack must be securely anchored to the floor before a battery tray is installed.
Installing Battery Trays
Procedure
1. To install battery trays, perform the procedure detailed in Figure 3.3.
Isolation Pad
Floor
Floor Anchors
(Customer Provided)
Typical 23” Relay Rack
1/2-inch
Flat Washer
(4-places)
1/2-inch
Bushing
(4-places)

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Figure 3.3 Installing Battery Trays
Front
Rear
Rear
Rear
3. Secure rear angle brackets (both sides)
to relay rack with 12-24 x 1/2" thread
forming hex head screws (2 places per
side) and #10/12 ground washers
(1 place per bracket) or #12 flat washers
(1 place per bracket).
(Torque to 70 in-lbs).
4. Secure cabling brackets (both sides) to
relay rack with 12-24 x 1/2" thread forming
hex head screws. (Torque to 70 in-lbs).
2. Secure rear angle brackets (both sides)
to battery tray with 1/4-20 x 3/4” bolts,
1/4” flat washers, 1/4” lock washers, and
1/4” nuts. (4 places per bracket)
(Torque to 84 in-lbs).
1. Slide battery tray into relay rack and
secure to relay rack with 12-24 x 1/2"
thread forming hex head screws (4 places per
side) and #10/12 ground washers (1 place per
side) or #12 flat washers (3 places per
side). (Torque to 70 in-lbs).
P/N 562674
Battery Tray

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Installing Battery Disconnect Circuit Breakers onto Battery Trays
Procedure
1. To install battery, disconnect circuit breakers onto battery trays, perform the procedure detailed in Figure 3.4.
Figure 3.4 Installing Battery Disconnect Circuit Breakers onto Battery Trays
Battery Disconnect
Circuit Breaker Assembly
(left side kit shown,
right side kit available)
1. Remove the cover from the battery
disconnect circuit breaker assembly.
2. Secure the battery disconnect circuit
breaker assembly to the battery tray
using 8-32 nuts (2-places) and #8 flat
washer (1-place) or #8 ground washer
(1-place).
3. After wiring to the battery disconnect
circuit breaker, replace the cover.

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Connecting Battery Tray Cables from the Battery Trays to the System Busbars
Procedure
1. Connect battery tray cables to the system’s -48V and return busbars. Battery tray cables are labeled +1, -1, +2, -2, +3, and -3.
Connect the negative cables to the system’s -48V busbar. Connect the positive cables to the system’s return busbar. Refer
to Figure 3.5. Refer also to the wiring diagram provided in Figure 3.6.
2. Rout the cables into the battery trays. Route the cables labeled +1 and -1 into the bottom tray. Route the cables labeled +2
and -2 into the middle tray. Route the cables labeled +3 and -3 into the top tray.
3. Connect the -1, -2, and -3 cables to the battery disconnect circuit breaker located on the respective battery tray. Refer to
Figure 3.8. Cables labeled +1, +2, and +3 are connected to the battery strings in a later procedure.
Figure 3.5 Cables from Battery Trays to System Power Busbars
Components removed in
illustration for clarity only.
Positive (+)
Battery Tray Cables
Negative (-)
Battery Tray Cables
Rear
Rear
Hardware Buildup:
1/4-20 x 7/8” Bolt
1/4” Lock Washer
1/4” Flat Washer
Torque to 75 in-lbs.

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Figure 3.6 Battery Tray Wiring Diagram (582127000103 only)
to
Return
Busbar
to -48V
Battery
Busbar

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Figure 3.7 Battery Tray Wiring Diagram (582127000203 and 582127000503 only)
NOTE! Same diagram applies to 582127000101 and 582127000501 (one battery tray) and 582127000102 and 582127000502
(two battery trays).
Connecting Battery Tray Cables to the Battery Tray’s Battery Disconnect Circuit Breaker
Procedure
1. Connect battery tray cables labeled (-) to the battery disconnect circuit breaker located on each battery tray. Refer to
Figure 3.8.
2. Rout the cables into the battery trays. The unconnected ends are connected to the battery strings in a later procedure.
Battery Tray Battery Disconnect Circuit Breaker Alarm Wiring
Procedure
1. Connect alarm jumper P/N 524384 to the battery disconnect circuit breakers located on the battery trays by performing the
procedure detailed in Figure 3.8.
2. Connect the stripped end of alarm jumper P/N 524384 to TB1 located on the System Interface Board.–48VDC is applied to
the alarm lead when the circuit breaker is in the OFF position. Refer to Figure 3.8. Refer also to Figure 5.4.
Connecting Battery Temperature Probes
Procedure
Three battery temperature probes are provided with Lists 100, 103, 203, 500 and 503, two probes with List 102 and 502, and one
probe with List 101 and 501. These connections may be provided from the factory.
1. Connect a temperature probe to the System Temp 1 input on the System Interface Board. Route this probe to the bottom
battery tray. Refer to Figure 5.4.
To -48V Battery
Busbar
To Return
Busbar

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2. Connect a temperature probe to the System Temp 2 input on the System Interface Board. Route this probe to the center
battery tray. Refer to Figure 5.4.
3. Connect a temperature probe to the Temp 1 input on the IB2-1 interface board. Route this probe to the top battery tray.
Refer to Figure 5.5.
4. In the event there is excess length of the probe wires, coil the wires up and tie in a convenient location along the path of the
battery power cable.
Figure 3.8 Battery Tray Battery Disconnect Circuit Breaker Alarm Wiring
Torque to 60 in.-lbs.
using supplied
hardware.
Torque to 60 in.-lbs.
using supplied
hardware.
Torque to 60 in.-lbs.
using supplied
hardware.
Torque to 60 in.-lbs.
using supplied
hardware.
Connect stripped end
to TB1 located on the
System Interface Board.
(Side covers removed in illustration
to show wiring details.)
To Battery
Torque to 60 in.-lbs.
using supplied
hardware.
To Battery
Torque to 60 in.-lbs.
using supplied
hardware.
To Battery
To Power System
To Power System
To Power System
Yellow Alarm Wire
Harness, P/N 524384
3rd Battery Tray
Battery Disconnect
Circuit Breaker
2nd Battery Tray
Battery Disconnect
Circuit Breaker
1st Battery Tray
Battery Disconnect
Circuit Breaker
Procedure
1. Connect kit-supplied YELLOW jumper/alarm lead
(P/N 524384) to circuit breaker “C (Common)”
alarm terminals on ALL Battery Disconnect Circuit
Breakers. Connect remaining end to TB1 located on
the System Interface Board.
2. There is NO connection to the circuit breaker
“NO (Normally Open)” alarm terminal.
3. On ALL Battery Disconnect circuit breakers,
there should be a factory connected Jumper
connected from the bottom terminal on the circuit
breaker to the circuit breaker “NC (Normally Closed)”
alarm terminal.
Alarm Wiring to Battery Disconnect Circuit
Breakers when (1) to (3) Battery Trays are Used

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3.4 Installing Optional Lug Adapter Busbar Kits, Part Nos. 534449 and 514714
These kits provide lug adapter busbars plus hardware for use with 2-pole and 3-pole circuit breakers.
Contents of Kit P/N 534449 (for 2-pole circuit breakers)
Qty.
Part No.
Description
1
534447
Busbar
1
534448
Busbar
8
214110100
Flat Washer, 1/4”
4
214112100
Flat Washer, 3/8”
8
215111100
Lock Washer, 1/4”
4
215111300
Lock Washer, 3/8”
4
227640400
Hex Head Bolt, 1/4-20 x 3/4”
(not used)
2
227646600
Hex Head Bolt, 3/8-16 x 1”
8
228557100
Nut, 1/4-20
2
228567100
Nut, 3/8-16
Contents of Kit P/N 514714 (for 3-pole circuit breakers)
Qty.
Part No.
Description
1
514676
Busbar
1
514678
Busbar
12
214110100
Flat Washer, 1/4”
4
214112100
Flat Washer, 3/8”
12
215111100
Lock Washer, 1/4”
4
215111300
Lock Washer, 3/8”
6
227640400
Hex Head Bolt, 1/4-20 x 3/4”
(not used)
2
227646600
Hex Head Bolt, 3/8-16 x 1”
12
228557100
Nut, 1/4-20
2
228567100
Nut, 3/8-16
Perform the following steps to install the lug adapter busbars.
Procedure
Refer to Figure 3.9 as the procedure is performed. Note also the restrictions on location in Figure 3.9.
1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.
2. Install the lug adapter busbars as shown in Figure 3.9. Apply anti-oxidizing compound to busbar mating surfaces before
assembling. Recommended torque is 72 in-lbs using the supplied 1/4” bolts and hardware.
3. Orient the load lug hardware as shown in Figure 3.9. Recommended torque is 300 in-lbs using the supplied 3/8” bolts and
hardware.
4. Close the distribution cabinet’s front door. Turn the latch clockwise to secure the door.

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Figure 3.9 Installing Lug Adapter Busbar Kits
Notes:
Orient busbars as shown.
Circuit breaker locations for reference only.
Busbar Adapter
Kit P/N 534449
Busbar Adapter
Kit P/N 514714

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3.5 Installing Circuit Breakers and Fuses
Installing Bullet Nose Type Fuseholders and TPS/TLS Fuses
CAUTION! A 100 A circuit breaker or fuse SHALL HAVE an empty mounting position between it and any other overcurrent
protective device. 100 A circuit breakers can be used without a space provided the continuous current in each 100 A device
does not exceed 64 A. A 175 A or greater circuit breaker SHALL HAVE an empty mounting position between it and any other
overcurrent protective device.
Refer to SAG582127000 for any other restrictions.
Refer to the following procedure and install bullet nose type fuseholders and appropriately sized TPS/TLS fuses into the proper
mounting positions in the distribution cabinet.
Procedure
NOTE! Refer to Figure 3.10 as this procedure is performed.
1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.
2. Orient the fuseholder as shown in Figure 3.10. Insert the terminals on the rear of the fuseholder into their corresponding
sockets on the distribution panel.Ensure the alarm contact on the back of the fuseholder makes contact with the alarm
terminal on the spring strip. Push fuseholder in firmly until fully seated in the distribution panel.
3. When all fuseholders are installed, install an appropriately sized TPS/TLS fuse in each. To do this, remove the fuse carrier
from the mounted fuseholder body. Hold the fuseholder body while you pull the fuse carrier from the body. Slide the fuse in
place between the contacts of the fuse carrier. When done, push the fuse carrier back into the fuseholder body. Note that a
polarizing key on the bottom of the carrier prevents the carrier from being inserted upside down.
4. Verify that an 18/100 ampere alarm fuse is present in each fuseholder and that a plastic safety cover is installed on this fuse.
5. Record all fuse sizes on the label provided on the shield.
6. Close the distribution cabinet's front door. Turn the latch clockwise to secure the door.
Figure 3.10 Installing a Bullet Nose Type Fuseholder and TPS/TLS Fuse
Fuseholder Assembly
Longer Side
to the Bottom
Shorter Side
to the Top
Insert these terminals
into corresponding sockets
on distribution panel.
Fuse Carrier
Fuseholder Body
TPS/TLS Fuse
Polarizing Keyway
Matches Key on
Bottom of Fuse Carrier
Fuseholder Assembly
Exploded View
Fuseholder Assembly (P/N 117201) includes
body & carrier, alarm fuse, and alarm fuse safety cover.
GMT-X
Safety Fuse Cover
(Replacement
P/N 248898700)
GMT-18/100A
Alarm Fuse
(Replacement
P/N 248610301)

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Installing Bullet Nose Type Circuit Breakers
CAUTION! A 100 A circuit breaker or fuse SHALL HAVE an empty mounting position between it and any other overcurrent
protective device. 100 A circuit breakers can be used without a space provided the continuous current in each 100 A device
does not exceed 64 A. A 175 A or greater circuit breaker SHALL HAVE an empty mounting position between it and any other
overcurrent protective device.
Refer to SAG582127000 for any other restrictions.
Refer to the following procedure and install appropriately sized bullet nose type circuit breakers into the proper mounting positions in
the distribution cabinet.
Procedure
NOTE! Refer to Figure 3.11 as this procedure is performed.
1. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position.
2. Ensure that the circuit breaker is in the OFF position and is of the correct rating. Orient the circuit breaker as shown in
Figure 3.11. Insert the terminals on the rear of the circuit breaker into their corresponding sockets on the distribution panel.
Ensure the alarm contact on the back of the circuit breaker makes contact with the alarm terminal on the spring strip. Push
distribution device in firmly until fully seated in the distribution panel.
3. Record all circuit breaker sizes on the label provided on the shield.
4. Close the distribution cabinet's front door. Turn the latch clockwise to secure the door.
Figure 3.11 Installing a Bullet Nose Type Circuit Breaker
Insert these terminals
into correspondingsockets
on distribution panel.
Longer Side
to the Bottom
Shorter Side
to the Top
Lettering on
handle must be
right side up.
Turn off
before installing.