Alpha PowerBay BDFB Bedienungsanleitung

PowerBay+™ Full Size BDFB

Secondary DC Power Distribution System

Technical Manual

Effective: January 2020

2C048-740-30 R02, Rev. C (01/2020)

The following sections contain important safety information that must be followed during the installation and maintenance

of the equipment and batteries. Read all of the instructions before installing or operating the equipment, and save this

manual for future reference.

There may be multiple warnings associated with the call out. Example:

ATTENTION provides specic regulatory/code requirements that may a󰀨ect the placement of equipment and /or

installation procedures.

ATTENTION:

NOTICE provides additional information to help complete a specic task or procedure.

NOTICE:

ELECTRICAL HAZARD WARNING provides electrical safety information to PREVENT INJURY OR DEATH

to the technician or user.

WARNING! ELECTRICAL HAZARD

FUMES HAZARD WARNING provides fumes safety information to PREVENT INJURY OR DEATH to the

technician or user.

WARNING! FUMES HAZARD

FIRE HAZARD WARNING provides ammability safety information to PREVENT INJURY OR DEATH to the

technician or user.

WARNING! FIRE HAZARD

This WARNING provides safety information for both Electrical AND Fire Hazards

WARNING! ELECTRICAL & FIRE HAZARD

CAUTION provides safety information intended to PREVENT DAMAGE to material or equipment.

CAUTION!

GENERAL HAZARD WARNING provides safety information to PREVENT INJURY OR DEATH to the

technician or user.

WARNING! GENERAL HAZARD

Safety Notes

Alpha Technologies Services, Inc. considers customer safety and satisfaction its most important priority. To reduce the

risk of injury or death and to ensure continual safe operation of this product, certain information is presented di󰀨erently in

this manual. Alpha®tries to adhere to ANSI Z535 and encourages special attention and care to information presented in

the following manner:

3C048-740-30 R02, Rev. C (01/2020)

PowerBay+™ BDFB

Secondary DC Power Distribution System

Technical Manual

C048-740-30 R02, Rev. C

E󰀨ective: January 2020

Disclaimer

Images contained in this manual are for illustrative purposes only. These images may not match your installation.

Operator is cautioned to review the drawings and illustrations contained in this manual before proceeding. If there are

questions regarding the safe operation of this powering system, please contact Alpha Technologies Services, Inc. or your

nearest Alpha representative.

Alpha shall not be held liable for any damage or injury involving its enclosures, power supplies, generators, batteries or

other hardware if used or operated in any manner or subject to any condition not consistent with its intended purpose or is

installed or operated in an unapproved manner or improperly maintained.

Contact Information

Sales information and customer service in USA

(7AM to 5PM, Pacic Time): 1 800 322 5742

Complete Technical Support in USA

(7AM to 5PM, Pacic Time or 24/7 emergency support): 1 800 863 3364

Sales information and Technical Support in Canada: 1 888 462 7487

Website: www.alpha.com

4C048-740-30 R02, Rev. C (01/2020)

Table of Contents

1.0 Purpose and Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 Product Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.0 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.0 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1 Installation Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.1 Elevated Operating Ambient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.2 Reduced Air Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.3 Mechanical Loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.4 Circuit Overloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.5 Reliable Earthing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.6 Disconnect Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.2 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.3 Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.4 Input Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.4.1 Dual-Bus Input Connections (with Internal RTN). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.4.2 Dual-Bus Input Connections (without Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.4.3 Quad-Bus Input Connections (with Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.4.4 Quad-Bus Input Connections (without Internal RTN). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.4.5 Eight-Bus Input Connections (with Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.4.6 Eight-Bus Input Connections (without Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.5 Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.5.1 Output Adapters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.6 Safety Cover Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.6.1 Bus Safety Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.6.2 Top Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.7 Circuit Breaker Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.7.1 AM Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.7.2 GJ Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.8 Bus Reconguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.8.1 Return Bus Interconnection Jumper Installation (Models with Internal RTN) . . . . . . . . . . . . . . . 18

4.8.2 Hot Bus Interconnection Jumper Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.9 Distribution Panel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.0 Product Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

5.1 PowerBay+ Full-Size BDFB Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2 AM Breaker Panel Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3 GJ Breaker Panel Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.0 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

6.1 Menu Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.2 Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.2.1 Alarm Severity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.3 Settings Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.3.1 Volts Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.3.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.3.3 System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.3.4 Advanced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5C048-740-30 R02, Rev. C (01/2020)

Table of Contents (Continued)

6.4 BDFB Congurator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.5 Breaker Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.5.1 Load Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.5.2 Breaker Ampacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.5.3 Breaker Inventory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.6 How to Review System Status via the Embedded Webserver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.6.1 Default Static Network Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.7 Navigating the Webserver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.8 Realtime Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.9 Administration Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.9.1 Notication Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.9.2 Email & SNMP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.9.3 Site Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.9.4 Network Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.9.5 Upload Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.9.6 Reboot Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Appendix A: Mechanical Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

A.1 PowerBay+ Full BDFB Isometric View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

A.2 PowerBay+ Full BDFB Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

A.3 PowerBay+ Full BDFB Grounding Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

A.4 AM Breaker Panel Isometric Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

A.5 GJ Breaker Panel Isometric Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Appendix B: Bus Layout and Jumper Congurations. . . . . . . . . . . . . . . . . . . . . . 38

B.1 HOT/RTN Input Bus Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

B.2 Dual-bus HOT/RTN Jumper Conguration (w/Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

B.3 Quad-bus HOT/RTN Jumper Conguration (w/Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

B.4 Eight-bus HOT/RTN Jumper Conguration (w/Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Appendix C: Input Cable Congurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

C.1 Dual-bus Input Cable Positions (w/Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

C.2 Dual-bus HOT Input Cable Positions (w/o Internal RTN). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

C.3 Quad-bus HOT/RTN Input Cable Positions (w/Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

C.4 Quad-bus HOT Input Cable Positions (w/o Internal RTN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

C.5 Eight-Bus HOT/RTN Input Cable Positions (w/Internal RTN; All HOT/RTN Positions Cabled) . . . . . . 46

C.6 Eight-Bus HOT Input Cable Positions (w/o Internal RTN; All HOT Positions Cabled) . . . . . . . . . . . . . 47

Appendix D: Supported Lugs For Termination. . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Appendix E: Supported Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

6C048-740-30 R02, Rev. C (01/2020)

1.01.0 Purpose and ApplicabilityPurpose and Applicability

This document covers the installation and operation of the

PowerBay+™Full-Size BDFB.

1.11.1 Product ModelProduct Model

This document applies to Alpha®products in the following model

congurations:

yC016-1900-10 through C016-1924-10 Dual-Bus, Quad-Bus, and

Eight-Bus PowerBay+ Full-Size BDFB congurations (r02)

2.02.0 Theory of OperationTheory of Operation

The PowerBay+Full-Size BDFB provides advanced high density

secondary DC power distribution for multiple aplications.

2.12.1 FeaturesFeatures

yModular design

yUnmatched safety & reliability features

yEasy bus reconguration

yDual-bus, Quad-bus, and Eight-bus congurations (1200A per

bus)

yUp to (8) 800A or 1200A rated distribution panels

yUp to 176 AM breaker positions

yIndividual LED breaker trip indication

ySupports AM and GJ breakers as well as TPS, TLS, and GMT

fuses

yInternal or external returns

yTop or bottom feed

yOptional LCD touchscreen controller with Ethernet (SNMP,

Modbus, HTTP)

yOptional per-circuit current monitoring and RedundancyTracker™

3.03.0 Unpacking and InspectionUnpacking and Inspection

The Alpha PowerBay+ Full-Size BDFB was carefully packaged

and securely bolted to a pallet at the factory to withstand the

normal rigors of shipping, however, you should carefully inspect

all packaging and contents to conrm that no damage has

occurred in transit. Most shipping carriers require notication of

shipping damage within twenty-four hours of delivery, and it is the

responsibility of the recipient to inspect the shipment immediately

upon receipt.

3.13.1 Package ContentsPackage Contents

yPowerBay+Full-Size BDFB

yInstallation Hardware Kit

ySetup and operation manual

yQuickstart installation guide

yDistribution panels pre-installed (if so ordered)

Figure 1. PowerBay+ Full-Size BDFB

7C048-740-30 R02, Rev. C (01/2020)

4.04.0 InstallationInstallation

4.14.1 Installation PreparationInstallation Preparation

THIS PRODUCT MUST BE INSTALLED WITHIN A

RESTRICTED ACCESS LOCATION WHERE ACCESS IS

THROUGH THE USE OF A TOOL, LOCK AND KEY, OR

OTHER MEANS OF SECURITY, AND IS CONTROLLED

BY THE AUTHORITY RESPONSIBLE FOR THE

LOCATION. THIS PRODUCT MUST BE INSTALLED AND

MAINTAINED ONLY BY QUALIFIED TECHNICIANS.

NOTICE:

ENSURE THAT THERE IS ADEQUATE GROUND AND

CEILING SPACE FOR PLACEMENT OF THE BDFB.

NOTICE:

4.1.14.1.1 Elevated Operating AmbientElevated Operating Ambient

Install the BDFB and associated equipment in an environment

compatible with the maximum ambient temperature (TMA) specied

by the manufacturer.

4.1.24.1.2 Reduced Air FlowReduced Air Flow

Installation of the BDFB and associated equipment should be

such that the amount of air ow required for safe operation of the

equipment is not compromised.

4.1.34.1.3 Mechanical LoadingMechanical Loading

Mounting of the BDFB and associated equipment should be

such that a hazardous condition is not achieved due to uneven

mechanical loading.

4.1.44.1.4 Circuit OverloadingCircuit Overloading

Give consideration to the connection of the equipment to the

supply circuit and the e󰀨ect that overloading of the circuits might

have on overcurrent protection and supply wiring. Use appropriate

consideration for equipment nameplate ratings when addressing this

concern.

4.1.54.1.5 Reliable EarthingReliable Earthing

Maintain reliable earthing of BDFB and associated equipment.

Pay particular attention to supply connections other than direct

connections to the branch circuit (e.g., use of power strips).

4.1.64.1.6 Disconnect DeviceDisconnect Device

A readily accessible disconnect device must be incorporated into the

building installation wiring.

8C048-740-30 R02, Rev. C (01/2020)

4.24.2 MountingMounting

The Full-Size BDFB will need to be securely mounted to the ground

by the use of (4) Hilti concrete anchors.

Step 1. Remove the rear covers of the BDFB.

Step 2. Measuring the distance between the four slotted mounting

locations found on the base of the rack, mark and drill holes

into desired concrete location for rack placement (see Figure

2).

Step 3. Carefully move the BDFB into place while aligning the slotted

mounting holes with the holes drilled in Step 2. Insert a drop-

in Hilti Anchor for each hole.

Step 4. Insert and securely fasten all (4) Hilti anchor bolts into the

anchors (see Figure 3).

4.34.3 GroundingGrounding

Table 1. Ground Specications

TWO HOLE

LANDING

TYPE

HOLE/

STUD

SIZE

CENTER TO

CENTER

RECOMMENDED

TORQUE VALUE

Threaded

Insert

3/8 in. 1 in. 350 in·lbs

The ground landings are located on the left and right side on the top

of the BDFB rack assembly. Refer to mechanical drawings found in

Appendix A for greater detail regarding grounding locations.

Step 1. Select the desired grounding location and break away the

associated knock-out points found on the plastic top cover

(see Figure 4).

Step 2. Connect the ground cable with 3/8 in hardware. Ensure heat

shrink and no-oxide compound are applied appropriately prior

to termination.

Step 3. Torque the fasteners to 350 in·lbs.

DO NOT ENERGIZE THE BDFB BEFORE GROUND IS

CONNECTED.

CAUTION!

Figure 2. Rack Footprint

Figure 3. Anchoring Rack

Figure 4. Grounding Locations (Top View)

9C048-740-30 R02, Rev. C (01/2020)

4.44.4 Input ConnectionsInput Connections

WARNING! ELECTRICAL HAZARD

INPUTS MUST BE PROTECTED BY A LISTED CIRCUIT

BREAKER OR BRANCH RATED FUSE. THE CIRCUIT

BREAKER OR FUSE MUST BE RATED AT 1200A MAX.

MULTIPLE POWER SOURCES ARE PRESENT. ENSURE

ALL INPUT POWER FEEDS ARE NOT ENERGIZED

BEFORE INSTALLING THEM. ELECTRICAL

INSTALLATION SHOULD ONLY BE PERFORMED BY

QUALIFIED PERSONNEL WITH PROPER TOOLS AND

PROTECTIVE SAFETY EQUIPMENT.

MAKE SURE THAT ALL FEEDER CABLES HAVE HEAT

SHRINK APPLIED PRIOR TO TERMINATION, AND THAT

NO-OXIDE COMPOUND IS APPLIED TO ALL COPPER-

TO-COPPER CONNECTIONS.

NOTICE:

Table 2. Input Specications

TERMINATION

TYPE

HOLE/

STUD

SIZE

CENTER

RECOMMENDED

TORQUE VALUE

Through Hole 3/8 in. 1 in. 350 in·lbs

The Full-Size BDFB can be cabled in dual, quad, and eight-bus

congurations. Each of the eight HOT (-) and RTN (+) input positions

are individually labeled throughout the BDFB buswork (see Figure 7).

The Full-Size BDFB is also capable of connecting to external RTN

buses.

Figure 5. Input Bus Plastic Safety Shields

Figure 6. HOT/RTN Input Bus Locations

Figure 7. Numbered Input

Bus Locations (Internal RTN

Shown)

Figure 8. HOT Input Cable

Termination

Figure 9. RTN Input Cable

Termination

10 C048-740-30 R02, Rev. C (01/2020)

4.4.14.4.1 Dual-Bus Input Connections (with InternalDual-Bus Input Connections (with Internal

RTN)RTN)

The hot and return buses on the dual-bus conguration are

all equipped with interconnection jumpers, thus hot/return

input cables are to be installed only on hot/return positions

1-2 on this conguration (see Figure 10). For more detailed

information, refer to Appendix B and C for input bus and cable

layout.

Step 1. Remove the input bus plastic safety covers (see Figure

5 on Page 9).

Step 2. Install the hot input cables/lugs to hot input positions

1-2 (see Figure 8 on Page 9).

Step 3. Install the return input cables/lugs to return input

positions 1-2 (see Figure 9 on Page 9).

Step 4. Bolt all lugs to the bus bars using a at and lock washer.

Tighten all of the hardware and ensure that the lugs are

straight and parallel with each other as they mount to

the bus bars.

Step 5. Reattach the input bus plastic safety covers.

4.4.24.4.2 Dual-Bus Input Connections (withoutDual-Bus Input Connections (without

Internal RTN)Internal RTN)

The hot buses on the dual-bus conguration are all equipped

with interconnection jumpers, thus hot input cables are to be

installed only on hot positions 1-2 on this conguration (see

Figure 11). For more detailed information, refer to Appendix B

and C for input bus and cable layout.

Step 1. Remove the input bus plastic safety covers (see Figure

5 on Page 9).

Step 2. Install the external return input connections.

Step 3. Install the hot input cables/lugs to hot input positions

1-2 (see Figure 8 on Page 9).

Step 4. Bolt all lugs to the bus bars using a at and lock washer.

Tighten all of the hardware and ensure that the lugs are

straight and parallel with each other as they mount to

the bus bars.

Step 5. Reattach the input bus plastic safety covers.

Figure 10. Dual-Bus HOT/RTN Input

Connections (with Internal RTN)

Figure 11. Dual-Bus HOT Input

Connections (without Internal RTN)

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