PRODUCT MANUAL
MX28B-PDF
POWER DISTRIBUTION FRAME
APC DC Network Solutions Inc.
11035 Switzer Avenue
Dallas, TX 75238
800-800-4APC
PART NUMBER 990-9132
MX28B-PDF Product Manual Revision A
REVISION HISTORY
Revision Date By Description
A
26 Jan 2001 JNF Initial release
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Revision A MX28B-PDF Product Manual
TABLE OF CONTENTS
1. GENERAL INFORMATION............................................................................................................. 4
1.1 Introduction.............................................................................................................................. 4
1.2 Precautions.............................................................................................................................. 4
1.3 Inspection Upon Receipt Of Goods......................................................................................... 4
1.3.1 General............................................................................................................................ 4
1.3.2 Visible External Damage................................................................................................. 4
1.3.3 Concealed Damage......................................................................................................... 5
1.3.4 Return of Damaged Goods.............................................................................................. 5
2. SYSTEM OVERVIEW AND TECHNICAL DESCRIPTION ............................................................. 6
2.1 General System Overview....................................................................................................... 6
2.2 General System Specifications................................................................................................ 6
2.2.1 Input –48 VDC Bus......................................................................................................... 7
2.2.2 Circuit Breaker Tiers........................................................................................................7
2.2.3 Circuit Breakers............................................................................................................... 7
2.3 INDICATORS AND ALARMS..................................................................................................8
2.3.1 Meters ..………..………………………………………………………………………………..8
2.3.2 Alarm Relay..................................................................................................................... 9
3. INSTALLATION PROCEDURES1………………………………………………………………………10
3.1 Preparation ............................................................................................................................ 10
3.1.1 Recommended Tools .................................................................................................... 10
3.1.2 Recommended Test Equipment.................................................................................... 10
3.1.3 Equipment Inspection.................................................................................................... 10
3.1.4 Safety Precautions ........................................................................................................ 10
3.1.5 Room/Locations............................................................................................................. 10
3.1.6 Mounting....................................................................................................................... 11
3.2 Input power connections........................................................................................................ 11
3.3 DC System Grounding........................................................................................................... 12
3.4 Circuit Breaker Installation..................................................................................................... 13
3.5 Load connections...................................................................................................................13
4. CUSTOMER SERVICE AND SUPPORT...................................................................................... 14
5. WARRANTY PROVISIONS .......................................................................................................... 14
5.1 General Provisions ................................................................................................................ 14
5.2 Warranty returns.................................................................................................................... 14
5.3 Warranty Repair or Replacement.......................................................................................... 15
5.4 EXCLUSIONS AND LIMITATIONS ....................................................................................... 15
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MX28B-PDF Product Manual Revision A
1. GENERAL INFORMATION
1.1. INTRODUCTION
The MX28B Power Distribution Frames (PDF) fr om APC DC Network Solutions Inc. possesses
unique features that m ake them easy to install, maintain and upgrade.
Sales support for purchases, proposals, after-sales support, etc. is provided by APC DC
Network Solutions Inc. sales and service offices.
APC DC Network Solutions Inc. provides nationwide 24 hour, 7 day service response by
dialing:
This service will answer your call, gather specific service information, and ask a qualified service
representative to contact you as quickly as possible (refer to Section 4).
(800) 800- 4APC
APC DC Network Solutions Inc. is Located at 11035 Switzer Avenue, Dallas, Texas, 75238.
Phone: (214) 652-4040; FAX: (214) 342- 5027.
1.2. PRECAUTIONS
It is extremely important to read, understand, and strictl y follow the proper
INSTALLATION PROCEDURES in Section 3. In particular, note the SAFETY
PRECAUTIONS in Section 3.1.4:
If any precautions are not clearly understood, or special local codes exist, contact your
nearest APC DC Network Solutions Inc. representative or the APC DC Network Solutions
Inc. offices at (800) 800- 4APC for clarification.
Also, it is the customer’s responsibility to ensure that all applicable federal, state and local
regulations and industry guidelines are complied with for correct installation of this power
system.
1.3. INSPECTION UPON RECEIPT OF GOODS
1.3.1 General
Precautions have been taken to pack the eq uipm ent pr operly for shipment to ensure safe
arrival. However, upon receipt, please inspect the entire shipment , including any boxes or
crates, for evidence of damage that may have occurred during transit. Also, confirm t hat the
material received matches the packing slip.
1.3.2 Visible External Damage
It is the responsibility of the person receiving the shipment IMMEDIATELY upon taking delivery
(while the carrier representative is still on site) t o inventor y and inspect all ma t er ials against the
provided bill of lading or weigh bill.
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Revision A MX28B-PDF Product Manual
Please be sure that all items are accounted f or , including the number of pallets and the
quantity of accessory and/or component boxes. Also not e any visible external damage that
may have occurred during transit.
If damage has occurred, or the quantity of items is not correct:
•= Make a descriptive notation on the delivery receipt before signing.
•= File a damage report with the carrier t hat delivered t he shipm ent.
1.3.3 Concealed Damage
Within 15 days of receipt, unpack the power system and equipment received from APC
DC Network Solutions Inc. and check fo r concealed dam age. Check the materials
received against the detailed packing list t o verify the quantity and condition as complete
and satisfactory.
Again, note any damage to the internal packing material and/or material shortages.
If damage or shortage is noted:
•= Request an inspection by the carrier.
•= File a concealed damage claim; and/or
•= File a material shortage claim with your APC DC Network Solutions Inc.
Representative.
DELAY IN NOTIFYING THE CARRIER MAY RESULT IN LOSS OF RIGHT TO
REIMBURSEMENT FOR DAMAGES OR LOSS.
Should you have any questions concerning potential damages or should you
experience a lack of cooperation from your carrier, call APC DC Network Solutions
Inc. at (800) 800- 4APC.
1.3.4 Return of Damaged Goods
Should equipment be damaged and req uir e return to APC DC Network Solutions Inc. for
repair, the APC DC Network Solutions Inc. ser vice repr esent ative will provide instructions
along with a valid RMA (Returned Material Authorization) number to facilitate return of the
damaged goods to the APC DC Network Solut ions I nc. repair center.
It is important that proper steps as outlined in Section 1.3.2 and 1.3.3 above are followed
carefully. Your APC DC Network Solutions Inc. representative will assist you, if required,
in obtaining proper disposition of an initial delivery return issue.
However, a valid RMA number must be obtained before returning any equipment to
APC DC Network Solutions Inc.
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