Specifications

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Range of product
TeSys GV2
Range
TeSys
Product name
TeSys GV2
Device short name
GV2L
Product or component type
circuit breaker
Device application
motor
Poles description
3P
Network type
AC
Utilisation category
  • category A conforming to IEC 60947-2
  • AC-3 conforming to IEC 60947-4-1
    • Network frequency
      50/60 Hz conforming to IEC 60947-2
      Breaking capacity
    • 100 kA Icu at 230/240 V AC 50/60 Hz conforming to IEC 60947-2
    • 4 kA Icu at 690 V AC 50/60 Hz conforming to IEC 60947-2
    • 10 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2
    • 20 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2
    • 50 kA Icu at 400/415 V AC 50/60 Hz conforming to IEC 60947-2
      • [Ics] rated service short-circuit breaking capacity
      • 100 % at 690 V AC 50/60 Hz conforming to IEC 60947-2
      • 100 % at 230/240 V AC 50/60 Hz conforming to IEC 60947-2
      • 75 % at 440 V AC 50/60 Hz conforming to IEC 60947-2
      • 75 % at 500 V AC 50/60 Hz conforming to IEC 60947-2
      • 50 % at 400/415 V AC 50/60 Hz conforming to IEC 60947-2
        • Trip unit technology
          magnetic
          Magnetic tripping current
          223-223 A
          Fixing mode
        • 35 mm symmetrical DIN rail: clipped
        • panel: screwed (with 2 x M4 screws)
          • Operating position
            any position
            Motor power kW
          • 7.5-7.5 kW at 400/415 V AC 50/60 Hz
          • 9-9 kW at 500 V AC 50/60 Hz
          • 15-15 kW at 690 V AC 50/60 Hz
            • Control type
              rotary knob
              [In] rated current
              18 A
              [Ue] rated operational voltage
              690 V AC 50/60 Hz conforming to IEC 60947-2
              [Ui] rated insulation voltage
              690 V AC 50/60 Hz conforming to IEC 60947-2
              [Uimp] rated impulse withstand voltage
              Power dissipation per pole
              1.8 W
              Mechanical durability
              100000 cycles
              Electrical durability
              100000 cycles for AC-3 at 415 V
              Maximum operating rate
              40 cyc/h
              Rated duty
              continuous conforming to IEC 60947-4-1
              Direct connector
              without
              Connections - terminals
            • screw clamp terminals 2 cable(s) 1-6 mm² solid
            • screw clamp terminals 2 cable(s) 1.5-6 mm² flexible without cable end
            • screw clamp terminals 2 cable(s) 1-4 mm² flexible with cable end
              • Tightening torque
                1.7 N.m on screw clamp terminals
                Mechanical robustness
              • shocks: 30 Gn conforming to IEC 60068-2-27
              • vibrations: 5 Gn, 5...150 Hz conforming to IEC 60068-2-6
                • Suitability for isolation
                  yes conforming to IEC 60947-1
                  Height
                  89 mm
                  Width
                  45 mm
                  Depth
                  97 mm
                  Net weight
                  0.33 kg
                  Compatibility code
                  GV2L
                  Standards
                • EN/IEC 60947-2
                • EN/IEC 60947-4-1
                • CSA C22.2 No 60947-4-1
                • UL 60947-4-1
                  • Product certifications
                  • IECEE CB Scheme
                  • UL
                  • CSA
                  • CCC
                  • EAC
                  • RINA
                  • LROS (Lloyds register of shipping)
                  • DNV-GL
                  • BV
                    • Protective treatment
                      TH
                      IP degree of protection
                      IP20 conforming to IEC 60529
                      IK degree of protection
                      IK04
                      Ambient air temperature for operation
                      -20-60 °C
                      Ambient air temperature for storage
                      -40-80 °C
                      Fire resistance
                      960 °C conforming to IEC 60695-2-1
                      Operating altitude
                      0...2000 m
                      Sustainable offer status
                      Green Premium product
                      REACh Regulation
                      Reference contains Substances of Very High Concern above the threshold
                      EU RoHS Directive
                      Compliant
                      Mercury free
                      Yes
                      RoHS exemption information
                      Yes
                      China RoHS Regulation
                      Product out of China RoHS scope. Substance declaration for your information
                      Environmental Disclosure
                      ENVPEP121004EN
                      Circularity Profile
                      N/A
                      WEEE
                      The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins
                      California proposition 65
                      WARNING: This product can expose you to chemicals including: Antimony oxide & Antimony trioxide which is known to the State of California to cause Carcinogen harm. For more information go to www.p65warnings.ca.gov
                      Warranty
                      18 months

                      Documents & downloads

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                      Frequently Asked Questions

                      hide show

                      Can the GV* starters be used on 50 hertz applications?

                      Issue:
                      GV* Starter for 50/60hz application

                      Product Line:
                      Motor Starters and Protectors

                      Environment:
                      PowerPact™ Manual Starters

                      Resolution:
                      Yes, these starters are rated for 50/60 hertz.

                      This applies to all GV2M, GV2ME, GV2P, GV3M, GV3ME devices.

                      GV2P disconnect options

                      Issue:
                      What is the product number for a complete through-the-door disconnect device for a GV2P

                      Product Line:
                      GV2P Manual Starters and Protectors

                      Environment:
                      US product

                      Cause:
                      Digest 176 is unclear as to what is a complete mechanism with shaft and handle

                      Resolution:
                      There are three devices which include mechanism, shaft and handle:
                      GV2APN01 has a NEMA 1, 12 rating and is black
                      GV2APN02 has a NEMA 1, 12 rating and is red/yellow
                      GV2APN04 has a NEMA 3R, 4, 4X rating and is red/yellow

                      Does the GV2P22 have a rotary handle

                       Yes it does.

                      What would be the part number for an enclosure for the GV2ME20

                      What is the replacement for a GK2AX10 Side mount Auxilary to suit the GV3L40 circuit breaker?

                      The replacement for a GK2AX10 Side mount Auxilary to suit the GV3L40 circuit breaker is a GVAN11. You can also use a GVAE1 however that is front mount and won't work with extended rotary handles.

                      What is the part number for the top mount auxiliary for a GV2L22?

                      The part number for the Top mount auxiliary for the GV2 range is the GVAE1....
                      This can be a N/O or N/C depending on orientation
                      https://eshop.schneider-electric.com/product.aspx?org=21&lang=1&dist=276&prod_id=gvae1

                      User-added image

                      What is the IP rating of GVAE20? Would the IP rating of GV2P circuit breaker (IP20) get affected by the addition of Aux contact GVAE20?

                      The IP rating of GVAE20 is IP 20.

                      The IP rating of GV2* with GVAE20 is then IP20. It would not get affected by the addition of the Auxiliary 

                      Can GVAE1, GVAE11 or GVAE20 be used with GV3 starters?

                      Issue:
                      Are the front mount auxiliary contacts GVAE1, GVEA11 and GVAE20 be used for GV3M devices?
                       
                      Product Line:

                      Tesys GV Manual Starter and Protectors

                      Environment:
                      TeSys GV, GVA, GV2, GV3P

                      Resolution:
                      These auxiliary contacts can only be used with the rotary handled GV3P devices. They cannot be applied with the pushbutton GV3M devices.

                      Protection Rating for GV2E01

                      Issue:
                      What rating does the GV2E01 give when used with the GV2MC01 or GV2MP01 enclosure

                      Product Line:
                      GV2 Enclosure Accessories

                      Environment:
                      US Product

                      Cause:
                      The IP rating is not specified in the Digest 176

                      Resolution:
                      When used with the GV2MC01 or GV2MP01, this kit will give a IP55 rating.

                      Will the accessories used for the GV3ME06 through GV3ME63 work with the GV3ME80?

                      Product Line:
                      GV3 manual motor starters, IEC

                      Resolution:
                      The standard GV3 accessories will work on this device.

                      Does service release 8 for ProWORX NxT v2.20 include all the service releases from one through eight?

                      ProWORX NxT v2.20 service release 8 does not include all the service releases. It only includes service release 8. You must have ProWORX NxT v2.20 service release 6A, which includes service releases one through six, installed prior to installing service release 8. There is no public release of service release 7.


                      Legacy KB System (APS) Data: RESL168848 V1.0, Originally authored by on , Last Edited by on
                      Related ranges: ProWORX

                      What is the operation of the GV2AD fault signalling contacts of the GV2 circuit-breakers?

                      GV2ME, GV2P, GV2L, GV2LE, GV3P and GV3L circuit-breakers can be fitted with the following optional fault indicating contact blocks:
                       

                      GVAD0110
                      GVAD0101
                      GVAD1010
                      GVAD1001

                      These blocks comprise of fault signalling contacts and instantaneous auxiliary contacts

                      GVAD0110

                      A N/O instantaneous auxiliary contact (terminals 53-54), closed when the device is energized and open when the device is de-energized

                      A N/C fault signalling contact (terminals 95-96), closed if there is no fault, open when a fault (magnetic or thermal) occurs. 

                      GVAD0101

                      A N/C instantaneous auxiliary contact (terminals 51-52), closed when the device is de-energised and open when the device is energised.

                      A N/C fault signalling contact (terminals 95-96), closed if there is no fault, open when a fault (magnetic or thermal) occurs. 

                      GVAD1010 

                      A N/O instantaneous auxiliary contact (terminals 53-54), closed when the device is energized and open when the device is de-energized.

                      A N/O fault signalling contact (terminals 97-98), open if there is no fault, closed when a fault (magnetic or thermal) occurs. 
                       

                      GVAD1001

                      A N/C instantaneous auxiliary contact (terminals 51-52), closed when the device is de-energized and open when the device is energized.

                      A N/O fault signalling contact (terminals 97-98), open if there is no fault, closed when a fault (magnetic or thermal) occurs. 
                       


                      The instantaneous auxiliary contact test is performed by creating a state of transition of the handle actuator between the de-energized position and the energized position.

                      The fault contact test is performed by pressing the test button when the handle actuator is in the closed position.

                      What is the part number for the spacer used with the LC*D09 through LC*D32 Contactor and the GV2AF3 combination block when the GV2 Motor Circuit Protector is mounted on din rail and the contactor hangs below it?

                      Issue:
                      Identifying the spacer part number for use with a LC*D, GV2AF3, and GV2 device combination

                      Product Line:
                      Digest 177 Section 18 : Contactors and Starters IEC

                      Environment:
                      Products sold and used in the United States

                      Cause:
                      Spacer required

                      Resolution:
                      Compensation plate catalog number GV1F03, requires 2 pieces snap together.
                       

                      What is CSPN Certificate and which product are certified

                      CSPN (Certification de Sécurité de Premier Niveau) is a cyber security certification currently used
                      in the country of France. A product with CSPN certification can withstand a cyber attack driven by
                      2mmth of skilled hackers.

                      The M580 platform is CSPN-certified. BMEP58 CPU V2.20 or later & BMENOC0301/ BMENOC0311 V2.11 or later are certified.
                      Contact your local customer care center for more information.

                      STB 3 Input AND Reflex Action Negated Input Issue

                      Goals and Symptoms

                      The purpose of this resolution is to alert users of Advantys Configuration Software, p/n STBSPU1000, to an issue that will occur when creating 3-Input AND STB Reflex Actions.

                      Facts and Changes

                      Version 2.00 of the Advantys configuration software does not properly display a negated Input 3: status for a 3-input AND Reflex Action Function block after the Reflex Action is saved.
                      The following screen capture shows the programmed state after creating the AND function and checking the Negate boxes for Input 2 and Input 3, but before clicking on the OK box:



                      Notice that Input 3: is negated. If you click OK, close the reflex editor and later open it again, the screen will show as follows:



                      Notice that Input 3: is no longer shown as negated (inverted). The actual reflex block is stored correctly, it is just not displayed properly. The Reflex Editor will not change the state of the input's negate function unless explicitly changed. If the above block is edited, and the negate checkbox remains untouched, the input will still remain negated even though the display does not show it.

                      Causes and Fixes

                      STBSPU1000 v2.20 expected in March 2006 will maintain the proper display. Users should be aware that a new registration utility will be used in v2.20. Authorization transfers between it and older STBSPU1000 versions are not possible. Authorization transfers from older software versions to v2.20 will execute properly.


                      Legacy KB System (APS) Data: RESL175538 V1.0, Originally authored by on , Last Edited by on
                      Related ranges: Advantys STB

                      TCPOpen library setup returns the error 'The LibPath was not found in registry'

                      Goals and Symptoms

                      TCPOpen library setup returns the error 'The LibPath was not found in registry'.

                      Facts and Changes

                      TLXCDTCP50M
                      Unity Pro XL v4.0

                      Causes and Fixes


                      Setup returns the error: The LibPath was not found in registry.



                      The following is from the Unity 'Readme:

                      2.7. TCP Open library and Unity Dif libraries

                      Organization of data stored on the computer has changed with Unity Pro V4.0. To use some companion with Unity Pro, it is necessary to use the last version of these software packages, TCP Open library version V2.20 and Unity Dif version V2.0 SP2 min.

                      The problem can be resolved by using the following resolution.

                      • Insert the Unity Pro V4.0 CDROM. (Cancel autorun if necessary. )
                      • Locate the file named UpdateForCompanions.bat in the folder named UpdateForCompanions .
                      • Click on Start\Programs\Accessories\Command Prompt to open a DOS window.
                      • Change the directory in the DOS window to the path for the CD-ROM drive. (i.e., type F:) at the prompt F:\>, enter cd UpdateForCompanions
                      • At the command prompt F:\UpdateForCompanions>, enter 'UpdateForCompanions' followed by the letter corresponding to the installed Unity Pro package: "S", "M", "L", "XL"

                      .i.e.,

                      G:\UpdateForCompanions>UpdateForCompanions XL


                      • Wait for the update to finish.
                      • Run the TCP Open setup.

                      How do I perform a mass firmware upgrade on APC network enabled products?


                      Issue

                      How can I upgrade firmware on multiple APC Network Management Cards at one time or in an automated fashion?


                      Product Line
                       

                      • Network Management Card 1 (NMC1) - AP9617, AP9618, AP9619
                      Devices with an embedded Network Management Card 1 include (but are not limited to): Metered/Switched Rack PDUs (AP78XX, AP79XX), Rack Automatic Transfer Switches (AP77XX, Environmental Monitoring Units (AP9320, AP9340, NetBotz 200)
                      • Network Management Card 2 (NMC2) - AP9630/AP9630CH, AP9631/AP9631CH, AP9635/AP9635CH
                      Devices with an embedded Network Management Card 2 include (but are not limited to): 2G Metered/Switched Rack PDUs (AP86XX, AP88XX, AP89XX), Certain Audio/Video Network Management Enabled products.
                       

                      Environment
                       
                      • All serial numbers
                      • All firmware versions, unless otherwise noted


                      Cause

                      A user may wish to automate the process of upgrading firmware on Network Management Cards or devices with an embedded card to save time, especially with large quantities of devices.


                      Resolution

                      Users can upgrade the firmware on individual Network Management Cards via a couple of different methods, specifically
                      • FTP
                      • SCP
                      • XMODEM
                      • Infrastruxure Manager (discontinued product)
                      • StruxureWare DCE/InfrastruXure Central
                      • Upgrade Executable/Wizard (the executable is included with the firmware when downloaded)
                      • USB (if available)

                      In some cases, a user may have multiple devices that need to be upgraded. The user can upgrade each device individually. However, this may prove to be time consuming.

                      Therefore, the user has two options to perform a mass upgrade of firmware.
                      • The first, Infrastruxure Manager, is a discontinued item that monitors APC network enabled devices. A feature of the Infrastruxure Manager is the ability to perform mass firmware upgrades. Please reference the user’s manual or help menu for the Infrastruxure Manager to perform the mass firmware upgrade. Infrastruxure Central/StruxureWare Central/StruxureWare DCE is Infrastruxture Manager's replacement and offers this feature as well. 
                       
                      • The second, the Upgrade Executable which is included with all currently downloaded firmware for both Network Management Card 1 and 2 devices as well as those that embed one of these model cards. You can obtain the latest firmware from the following web site:

                      https://www.apcc.com/tools/download/

                      Download the firmware to your local computer. An example of the firmware that you download will appear as:

                      apc_hw02_aos374_rpdu374.exe

                      Once downloaded, you can run this file and it will automatically launch one of two executables, depending on which firmware you have downloaded.

                       Please note: Certain applications have requirements for a firmware update can be applied. Please refer to the particular application's documentation to ensure a mass upgrade can be performed on the device with no other requirements. For instance, the g2ats application has important requirements outlined in knowledge base FA156178 that must be followed before a standalone or mass upgrade can be done.



                      Network Management Card 1 devices

                      Once you execute the firmware file .exe, you'll be prompted to extract the files to a chosen location or directory.

                      Once extracted, the executable will attempt to run the upgrade. Simply close the command prompt windows that open. Locate the directory that the extracted files were saved to. In this directory, you should see a file named “iplist.txt”. Open this file in a text editor. The contents on the iplist.txt  should appear similar to:
                       
                      ;SystemIP=168.192.0.1 (the IP address of the device you wish to upgrade)
                      ;SystemUserName=username (the username of the device you with to upgrade)
                      ;SystemPassword=password (the password of the device you with to upgrade)
                       
                      In order to upgrade multiple devices, you must edit this text file. You will have to create login parameters for each device you wish to upgrade. (APC recommends no more than 10 devices at one time).

                      Note: Any lines in the iplist.txt file starting with a semicolon will be ignored. 
                       
                      An example of this file with multiple devices is below. (actual device parameters may appear differently based on user preferences):
                       
                      SystemIP=192.168.1.1
                      SystemUserName=apc
                      SystemPassword=apc

                      SystemIP=192.168.1.2
                      SystemUserName=apc
                      SystemPassword=apc

                      Once you have entered the login parameters for each device, make sure to save and exit the file.


                      Next, locate the “upgrd_util.exe” file, also located in the same directory that you extracted the firmware files to. Double-click on the “upgrd_util.exe” file and the mass upgrade will begin.

                      Note: *In NMC1 Upgrade Utility v1.2 or higher, a username or password longer than 11 characters will be truncated. Thus, you will need to change the password to 11 characters or less to use upgrd_util.exe. This could be modified using a mass configuration first, outlined in knowledge base FA156117. Reference the picture below on how to check your NMC Upgrade tool version.




                      A menu should appear with the following options:
                       

                      1. Use parameters in configuration file.
                      2. Enter parameters for single upgrade.
                      3. Exit firmware upgrade tool.
                       

                      Choose option 1.

                      The firmware upgrade will now begin. The executable will attempt to upgrade all devices listed in your IP list. If any errors are found, the upgrade will continue on to the next device.


                      Network Management Card 2 devices

                      On the Network Management Card 2 executable utility that automatically launches after files are extracted (FW_Upgrade_R2.exe), press the "Device List" button which will open iplist.txt in your default text editor.




                      Alternatively, locate the directory that the extracted files were saved to and in this directory, open the file named iplist.txt manually in a text editor. The contents on the iplist.txt should appear similar to:
                       

                      ; Copy, paste, and modify one entry for each device in your network.
                      ; Lines with leading semicolons (;) are considered comments.
                      ; Note: Order and spacing are important and need to be the same as the example.

                      The below portion is in v2.20 Firmware Upgrade Utility or higher only (this actual text instruction, IPv6 support, and downgrade support). Check the previous screenshot to compare your program title bar and see if it says v2.20 or higher. If it only says Firmware Upgrade Utility, it is older.

                      ; SystemIP is the IPv4 or IPv6 address of the device
                      ; SystemUserName is the name of an enabled Administrator or higher account on the NMC
                      ; SystemPassword is the password of an enabled Administrator or higher account on the NMC
                      ; AllowDowngrade can be 0 for disabled (do not allow) or 1 for enabled (allow) for firmware downgrades
                       

                      ; SystemIP=192.168.0.1
                      ; SystemUserName=apc
                      ; SystemPassword=apc
                      ; AllowDowngrade=0

                      ; SystemIP=192.168.0.2
                      ; SystemUserName=apc
                      ; SystemPassword=apc
                      ; AllowDowngrade=1

                       

                      Once you have entered the configuration for each device, make sure to save and exit the file. (APC recommends no more than 10 devices at one time). On the Network Management Card 2 executable, select the checkbox that says Upgrade from Device List and then press Upgrade Now to begin the upgrade. See below.





                      Once the upgrade is complete, you will be required to close the executable/command prompt window.


                      If you have any questions on this process or experience trouble, please contact APC technical support. Before calling, please have the following information available:
                       

                      • Firmware that you downloaded.
                      • Which method are you using?
                      • Device model and serial number that you are attempting to upgrade
                      • What type of error do you receive when attempting to upgrade?
                      • How many devices are you attempting to upgrade?
                       

                      Things To Consider When Upgrading or Downgrading a Network Management Card 2 (NMC2) Device between v5.X.X and v6.X.X


                      Issue

                      Scenario 1: My Network Management Card 2 (NMC2) device shipped with or was updated to v6.X.X version of firmware and now I need to downgrade it to v5.1.X. Will this work and if so, what should I be worried about? Are there any special steps to do this?

                      Scenario 2: My Network Management Card 2 (NMC2) device shipped with or was updated to v6.X.X version of firmware and now I need to downgrade it to v5.1.X. I already tried this and its not working.

                      Scenario 3: Do I need to worry about upgrading my Network Management Card 2 (NMC2) from v5.0.X or v5.1.X to v6.X.X?


                      Product Line
                      • UPS Network Management Card 2 (NMC2) - AP9630/AP9630CH, AP9631/AP9631CH 
                      Devices utilizing the Rack PDU 2G app (rpdu2g), Smart UPS/Matrix application (sumx) and Symmetra Single Phase (sy) application only
                       

                      Environment
                       
                      • All serial numbers
                      • All installations of v6.X.X firmware with the aforementioned applications
                      • Users wishing to downgrade their firmware for a particular reason (i.e. your new card came with v6.X.X but you standardize on a different ,earlier version)
                      • Users wishing to upgrade their firmware (to take advantage of new features and/or bug fixes)

                      Cause

                      Please note that v6.X.X is a major revision of firmware. v6.X.X of the firmware contains major changes. For instance, user types are different. Downgrading is unsupported, and will without a doubt cause unexpected results or be prevented altogether without noting certain items.

                      It is recommended to review the v6.X.X user's guide for full understanding of the new user levels and applicable configuration items.

                      Note: Most user and system settings will NOT survive a downgrade.



                      Resolution


                      Knowledge base FA176047 is a highly recommended reading regarding v6.X.X FAQ beyond the content of this article for other documented issues questions.


                      Upgrading
                       
                      • v5.0.X->v6.X.X upgrade path will cause a loss of TCP/IP settings. You can avoid this by going v5.0.X->v5.1.X->v6.X.X.
                       
                      • Because of the new user types in v6.X.X firmware and above, the v5.1.X Administrator user credentials will create an Administrator user with the same credentials on the v6.X.X system. The new Super User will also be configured with the username of 'apc' which cannot be changed, and your Administrator password. The device and read-only users will also be converted to the v6.X.X system with the same access level.
                       
                      • User creation/modification is no longer supported in config.ini. Adding users is now done by a special .CSF file. This file can be uploaded to add/modify users via commands but cannot be downloaded to view for security reasons. Current user preferences and settings can be seen in either the Command Line Interface (via local, telnet, or SSH) and the web interface. Default user settings relating to users are still visible in the config.ini for use as a "template" when adding additional users. Further information is available in knowledge base FA176542.
                       
                      • Email notification settings for each email recipient will be reset to their default configuration including frequency and interval. These are unable to be carried over during the upgrade due to differences between v5.1.X and v6.X.X.
                       
                      • The event log will be deleted due to the new event log format required in v6.X.X. If required, please back up your event log prior to upgrading. (The APC Firmware Upgrade Utility will back this up for you as well).
                       
                      • Certain settings may not carry over correctly (such as temperature scale preference) since they are handled differently in v6.X.X. Furthermore, temperature preference and other user preferences are now configurable on a per user basis in v6.X.X, rather than using a global setting by the administrator in v5.X.X.


                      Downgrading (not supported)

                      Please refer to some very important points above and below when you are considering downgrading your firmware, understanding that APC cannot support this action. It is recommended you back up your configuration file before downgrading to preserve as many settings as possible. Normally, APC does not recommend downgrading Network Management Card firmware in general unless you have a specific reason to (as suggested above). If you take that recommendation into account and still wish to downgrade, please review the following points.

                       
                      • When you are ready to begin the downgrade, you will need to do the file transfer manually (via FTP, SCP, or XMODEM) as the older versions prior to v2.20 of the Firmware Upgrade Wizard/Utility used in older firmware bundles blocks an AOS downgrade. Instructions are located in knowledge base article FA156047.
                       
                      • Downgrading to v5.1.X will reset many pieces of configuration data (including administrator username and password) to default after the v5.1.X AOS file transfer is complete. It is recommended that you back up your configuration file (config.ini) to preserve your settings which can be re-uploaded after the downgrade and consideration of the items below. Information on downloading and uploading a config.ini file can be found in knowledge base article FA156117
                        .
                        • This means the default username/password for 'administrator' login will be apc/apc and you'll need to use apc/apc to connect to the card and finish the APP file transfer. (Alternatively, you can connect via Telnet/SSH/Local Console at this point and use the user command to modify the credentials immediately and then complete the APP transfer with the new credentials). The default 'device' and 'read only' users are also device/apc and readonly/apc respectively. 

                           
                        • System settings that will NOT be preserved during a downgrade include: ASI settings (inter-device communication), FTP settings, Modem settings, DNS reverse lookup, DNS manual override,  Domain Name,  NTP settings, RADIUS settings, System usernames and passwords, System name, contact, location, Require DHCP cookie,   Telnet, SSH, and CLI settings, Fahrenheit/Celsius display, HTTP server settings, SNMP settings, Data log settings, Event log settings, Syslog settings, Paging settings, Remote Monitoring Service settings, Email settings, and Modbus settings (if applicable)

                           
                        • Application settings (for sumx and sy) that will NOT be preserved during a downgrade include: Environment (Universal I/O, temp, humidity, etc), EnergyWise settings, PowerChute settings, Switched outlet group settings (Smart UPS with SUM prefix), Schedules, Sync control group settings, and Energy usage logs

                           
                        • For users using APC PowerChute Network Shutdown software, a new "PCNS User Name" setting must be configured along with the existing authentication phrase for communication to work properly between the software and NMC. Upon upgrading, this setting will be carried over but per the next bullet point, you may need to re-configure it. This setting should be an administrator or device level user name that will also be the same user name you use for PowerChute Network Shutdown access. Historically, this was the NMC administrator user name on pre 6.0.X systems.

                           
                        • APC strongly recommends the user performs the format function on their Network Management Card after downgrading to ensure the integrity of the device's databases. This wipes flash memory and any remaining configurations entirely, including your current TCP/IP settings.  This step can be done one of two ways:
                          • Press and hold the NMC's pinhole reset button for 20+ seconds, ensuring the NMC's status LED is pulsing green during this time. When it changes to amber or orange, let go of the reset button to let the format function complete and for the NMC to complete its reboot process.
                          • Issue the format command via the command line via telnet, SSH, or local console. Issue a reboot command to complete the process.