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4W-3879 REGULATOR AS-VOLTAGE S/N 6PA990-1162 480-VOLT PART OF 7C-1609 GENERATOR GP 3508 GENERATOR SET




GENERATORS

REGULATOR GP-VOLTAGE
 

#SEBP33041620
 

4W-3879: REGULATOR AS-VOLTAGE

4W-3879 REGULATOR AS-VOLTAGE
S/N 6PA990-1162
480-VOLT
PART OF 7C-1609 GENERATOR GP
i00379250 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5N-8002 C [1] REGULATOR AS-VOLTAGE  
2. 3N-2055 [1] MARKER  
3. 4W-0185 [1] MODULE AS  
4. 5N-6171 [1] CAPACITOR AS  
5. 4W-3910 [1] HARNESS AS-WIRING (VOLTAGE REGULATOR)  
6. 3N-7806 [1] RESISTOR AS  
7. 5N-6170 [1] CAPACITOR AS  
8. 3N-2043 [1] REACTOR AS  
9. 5N-3958 [1] FILM-IDENTIFICATION  
10. 4W-5276 C [1] STRIP-TERMINAL  
11. 4W-5274 C [1] MARKER  
12. 3N-7808 [1] HOLDER-FUSE  
13. 3N-7807 [1] FUSE (15-AMPERE)  
14. 4W-5277 C [1] PROTECTOR  
15. 3N-7752 [2] SPACER  
16. 6L-7004 Y [1] POTENTIOMETER (8-OHM, 25-WATT)(DROOP)  
17. 4W-5273 C [1] SUPPRESSOR-VOLTAGE  
18. 3N-2041 C [2] RHEOSTAT AS  
19. 5N-8006 C [1] RECTIFIER AS  
20. 3N-7803 [1] RECTIFIER AS  
21. 4W-0182 [1] RECTIFIER AS  
   
    AVAILABLE REPAIR KIT(S):
  3N-5536 [1] KIT-HARDWARE (REGULATOR)  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP33041621
 

4W-5271: REGULATOR AS-VOLTAGE

4W-5271 REGULATOR AS-VOLTAGE
S/N 6NA1460-1462
240-VOLT
PART OF 7C-1607 GENERATOR GP
i00379586 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5N-8002 C [1] REGULATOR AS-VOLTAGE  
2. 5N-8006 [1] RECTIFIER AS  
3. 4W-0182 [1] RECTIFIER AS (FIELD)  
4. 3N-7803 [1] RECTIFIER AS (CONTROLLED)  
5. 5N-6171 [1] CAPACITOR AS  
6. 3N-7806 [1] RESISTOR AS  
7. 5N-6170 [1] CAPACITOR AS  
8. 3N-2043 [1] REACTOR AS  
9. 5N-3958 [1] FILM-IDENTIFICATION (FUSE TYPE)  
10. 4W-5276 [1] STRIP-TERMINAL  
11. 4W-5274 C [1] MARKER (TERMINAL)  
12. 3N-7808 [1] HOLDER-FUSE  
13. 3N-7807 [1] FUSE (15-AMPERE)  
14. 4W-5277 [1] PROTECTOR (THERMAL)  
15. 3N-7752 [2] SPACER  
16. 3N-2055 [1] MARKER  
17. 4W-5273 [1] SUPPRESSOR-VOLTAGE  
18. 3N-2041 [2] RHEOSTAT AS  
19. 5N-8784 [1] HARNESS AS-WIRING (VOLTAGE REGULATOR)  
20. 6L-7004 [1] POTENTIOMETER (8-OHM, 25-WATT)(DROOP)  
   
    AVAILABLE REPAIR KIT(S):
  3N-5536 [1] KIT-HARDWARE (VOLTAGE REGULATOR)  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP33041622
 

5N-5081: REGULATOR AS-VOLTAGE

5N-5081 REGULATOR AS-VOLTAGE
S/N 6NA1460-UP; 6PA990-UP
480-VOLT
PART OF 5N-5100, 5N-9439, 7C-4903 REGULATOR AS-VOLTAGE
i00385348 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5N-9092 [1] COVER  
2. 5N-9097 [1] BOARD AS (M1)  
3. 5N-7315 [1] BOARD AS (M3)  
4. 5N-5019 [1] BOARD AS (M2)  
5. 5N-9090 [1] BRACKET  
6. 5N-9105 [1] BOARD AS (M5)  
7. 5N-5102 [1] BOARD AS (M4)  
8. 4W-1079 C [4] GUIDE-CARD  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP33041623
 

5N-5100: REGULATOR AS-VOLTAGE

5N-5100 REGULATOR AS-VOLTAGE
S/N 6PA990-1162
480-VOLT
PART OF 7C-1610 GENERATOR GP
i00385357 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-5786 [1] TRANSFORMER AS  
2. 5N-5081 Y [1] REGULATOR AS-VOLTAGE  
3. 5N-9096 [1] CLAMP AS  
  5N-9100 [1] CAPACITOR  
4. 5N-9107 [2] RECTIFIER  
5. 5N-9101 [1] TRANSFORMER AS  
6. 6L-7008 [1] STRAP-CABLE  
7. 5N-9106 [1] HARNESS AS-PANEL (VOLTAGE REGULATOR)(1)  
8. 4W-6340 [1] PROTECTOR (THERMAL)  
9. 5N-9095 [1] HOLDER-FUSE  
  3N-2050 [1] FUSE (15-AMPERE)  
10. 5N-3959 [1] FILM-IDENTIFICATION (VOLTAGE REGULATOR)  
11. 7L-2770 [1] RECTIFIER-BLOCK  
12. 6L-7004 [1] POTENTIOMETER (8-OHM, 25-WATT)(DROOP)  
12A. 6L-7004 [1] POTENTIOMETER (8-OHM, 25-WATT)(GAIN)  
13. 5N-9103 [1] POTENTIOMETER (VOLTAGE ADJUST)  
14. 5N-9102 [1] MARKER  
15. 5N-9099 [1] MARKER  
16. 5N-9094 [1] HARNESS AS-PANEL (VOLTAGE REGULATOR)(3)  
17. 5N-7314 [1] HARNESS AS-PANEL (VOLTAGE REGULATOR)(2)  
18. 7W-8888 [1] RESISTOR AS  
   
    AVAILABLE REPAIR KIT(S):
  5N-7310 [1] KIT-REGULATOR HARDWARE  
    (INCLUDES RECEPTACLES, SCREWS, WASHERS, NUTS, SPACERS, RETAINERS, & JUMPER)
  Y   SEPARATE ILLUSTRATION
 

#SEBP33041624
 

5N-9439: REGULATOR AS-VOLTAGE

5N-9439 REGULATOR AS-VOLTAGE
S/N 6NA1460-1462
240-VOLT
PART OF 7C-1608 GENERATOR GP
i00391289 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-5787 [1] TRANSFORMER AS  
2. 5N-5081 Y [1] REGULATOR AS-VOLTAGE  
3. 5N-9096 [1] CLAMP AS  
  5N-9100 [1] CAPACITOR  
4. 5N-9107 [2] RECTIFIER  
5. 5N-9101 [1] TRANSFORMER AS  
6. 6L-7008 [1] STRAP-CABLE  
7. 5N-9106 [1] HARNESS AS-PANEL (VOLTAGE REGULATOR)(1)  
8. 4W-6340 [1] PROTECTOR  
9. 5N-9095 [1] HOLDER-FUSE  
  3N-2050 [1] FUSE (15-AMPERE)  
10. 5N-3959 [1] FILM-IDENTIFICATION (VOLTAGE REGULATOR)  
11. 7L-2770 [1] RECTIFIER-BLOCK  
12. 6L-7004 [1] POTENTIOMETER (8-OHM, 25-WATT)(DROOP)  
12A. 6L-7004 [1] POTENTIOMETER (8-OHM, 25-WATT)(GAIN)  
13. 5N-9103 [1] POTENTIOMETER (VOLTAGE ADJUST)  
14. 5N-9102 [1] MARKER  
15. 5N-9099 [1] MARKER  
16. 5N-9094 [1] HARNESS AS-PANEL (VOLTAGE REGULATOR)(3)  
17. 5N-7314 [1] HARNESS AS-PANEL (VOLTAGE REGULATOR)(2)  
18. 7W-8888 [1] RESISTOR AS  
   
    AVAILABLE REPAIR KIT(S):
  5N-7310 [1] KIT-REGULATOR HARDWARE (VOLTAGE)  
    (INCLUDES RECEPTACLES, SCREWS, SPACERS, WASHERS, NUTS, RETAINERS, & JUMPER)
  Y   SEPARATE ILLUSTRATION
 

#SEBP33041625
 

7C-2662: REGULATOR AS-VOLTAGE

7C-2662 REGULATOR AS-VOLTAGE
S/N 6NA1463-1851
240-VOLT. VR3, PERMANENT MAGNET
PART OF 7C-1608 GENERATOR GP
i00403715 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4B-1242 [2] SCREW-MACHINE (12-24X0.375-IN)  
2. 8M-8468 [2] SEAL-O-RING  
3. 6V-8374 [16] SCREW-MACHINE (6-32X0.25-IN)  
4. 9Y-8420 [1] COVER (FUSE)  
5. 9S-8750 [4] NUT-FULL (1/4-20-THD)  
6. 4B-4674 [4] WASHER (6.4X14.5X1.6-MM THK)  
7. 7C-3887 [4] BOLT (1/4-20X4.5-IN)  
8. 7C-3890 [3] WASHER  
9. 9Y-8419 [2] FUSE (12-AMPERE)  
10. 9Y-6027 [3] FUSE-CERAMIC (10-AMPERE)  
11. 4P-9826 [1] BLOCK-FUSE  
 

#SEBP33041626
 

7C-2663: REGULATOR AS-VOLTAGE

7C-2663 REGULATOR AS-VOLTAGE
S/N 6PA1163-UP; 5TD1700-UP
480-VOLT. VR3, SELF EXCITED, SENSING
PART OF 4P-2242, 7C-1609 GENERATOR GP
i00403723 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8M-8468 [2] SEAL-O-RING  
2. 6V-8374 [16] SCREW-MACHINE (6-32X0.25-IN)  
3. 9Y-8420 [1] COVER (FUSE)  
4. 9S-8750 [4] NUT-FULL (1/4-20-THD)  
5. 4B-4674 [4] WASHER (6.4X14.5X1.6-MM THK)  
6. 7C-3887 [4] BOLT (1/4-20X4.5-IN)  
7. 4B-1242 [2] SCREW-MACHINE (12-24X0.375-IN)  
8. 9Y-8419 [2] FUSE (12-AMPERE)  
9. 4P-9826 [1] BLOCK-FUSE  
 

#SEBP33041627
 

7C-3507: REGULATOR AS-VOLTAGE

7C-3507 REGULATOR AS-VOLTAGE
S/N 6NA1709-2217
120-VOLT. VR3, PERMANENT MAGNET
PART OF 7C-2624 GENERATOR AR
i00405162 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2H-8533 [2] SCREW-MACHINE (10-32X0.25-IN)  
2. 8M-8468 [2] SEAL-O-RING  
3. 6V-8374 [16] SCREW-MACHINE (6-32X0.25-IN)  
4. 9Y-8420 [1] COVER (FUSE)  
5. 9S-8750 [4] NUT-FULL (1/4-20-THD)  
6. 4B-4674 [4] WASHER (6.4X14.5X1.6-MM THK)  
7. 7C-3887 [4] BOLT (1/4-20X4.5-IN)  
8. 7C-3890 [4] WASHER  
9. 9Y-8419 [2] FUSE (12-AMPERE)  
10. 9Y-6027 [3] FUSE-CERAMIC (10-AMPERE)  
 

#SEBP33041628
 

7C-4903: REGULATOR AS-VOLTAGE

7C-4903 REGULATOR AS-VOLTAGE
S/N 6NA1460-1708
2400-VOLT OR 4160-VOLT. PERMANENT MAGNET
PART OF 7C-2624 GENERATOR AR
i00407795 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-5787 [2] TRANSFORMER AS  
2. 5N-5081 Y [1] REGULATOR AS-VOLTAGE  
3. 5N-9096 [1] CLAMP AS  
  5N-9100 [1] CAPACITOR  
4. 5N-9107 [2] RECTIFIER  
5. 5N-9101 [1] TRANSFORMER AS  
6. 6L-7008 [1] STRAP-CABLE  
7. 5N-9106 [1] HARNESS AS-PANEL (VOLTAGE REGULATOR)(1)  
8. 4W-6340 [1] PROTECTOR  
9. 5N-9095 [1] HOLDER-FUSE  
  3N-2050 [1] FUSE (15-AMPERE)  
10. 5N-3959 [1] FILM-IDENTIFICATION (VOLTAGE REGULATOR)  
11. 7L-2770 [1] RECTIFIER-BLOCK  
12. 6L-7004 [1] POTENTIOMETER (8-OHM, 25-WATT)(DROOP)  
12A. 6L-7004 [1] POTENTIOMETER (8-OHM, 25-WATT)(GAIN)  
13. 5N-9103 [1] POTENTIOMETER (VOLTAGE ADJUST)  
14. 5N-9102 [1] MARKER  
15. 5N-9099 [1] MARKER  
16. 5N-9094 [1] HARNESS AS-PANEL (VOLTAGE REGULATOR)(3)  
17. 5N-7314 [1] HARNESS AS-PANEL (VOLTAGE REGULATOR)(2)  
18. 7W-8888 [1] RESISTOR AS  
   
    AVAILABLE REPAIR KIT(S):
  5N-7310 [1] KIT-REGULATOR HARDWARE  
    (INCLUDES RECEPTACLES, SCREWS, SPACERS, WASHERS, NUTS, RETAINERS, & JUMPER)
  Y   SEPARATE ILLUSTRATION
 

#SEBP33041629
 

7E-8261: REGULATOR AS-VOLTAGE

7E-8261 REGULATOR AS-VOLTAGE
S/N 6NA1852-3474; 6PA990-2047
240-VOLT. VR3, PERMANENT MAGNET
PART OF 4P-4565, 7C-1608 GENERATOR GP
FIELD REPLACEMENT ORDER @@@@@114-5510@@@@@
i00388981 SEBP3304
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Parts for your 3508 GENERATOR SET:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4B-1242 [2] SCREW-MACHINE (12-24X0.375-IN)  
2. 8M-8468 [2] SEAL-O-RING  
3. 6V-8374 [16] SCREW-MACHINE (6-32X0.25-IN)  
4. 9Y-8420 [1] COVER (FUSE)  
5. 9S-8750 [4] NUT-FULL (1/4-20-THD)  
  4B-4674 [4] WASHER (6.4X14.5X1.6-MM THK)  
  7C-3887 [4] BOLT (1/4-20X4.5-IN)  
6. 9Y-8419 [2] FUSE (12-AMPERE)  
7. 4P-9826 [1] BLOCK-FUSE  
 

Information:

General Service Information
Attachments
VR3 VOLTAGE REGULATOR (10/12 LEAD), SELF-EXCITED SR4 GENERAT
Attachments
VR3 VOLTAGE REGULATOR PERMANENT MAGNET EXCITED SR4 GENERATOR
Attachments
VR4 VOLTAGE REGULATOR
Engine News
Special Instruction
Special Instruction For Replacing a 173-7793 Droop Module With a 197-3531 Droop Module{4467}
Special Instruction For Replacing a 173-7793 Droop Module With a 197-3531 Droop Module{4467}
Installation Instructions for the New Caterpillar Digital Voltage Regulator (CDVR) In Field Retrofit Applications{4467}
Installation Instructions for the New Caterpillar Digital Voltage Regulator (CDVR) In Field Retrofit Applications{4467}
Technical Information Bulletin
Loose Connections on Voltage Regulators Can Lead to Above Normal Voltage Output and Regulator Failure
Loose Connections on Voltage Regulators Can Lead to Above Normal Voltage Output and Regulator Failure
Specifications
Dimensions
Digital Voltage Regulator
Electrical
Digital Voltage Regulator
Electrical
Cat® Digital Voltage Regulator
Dimensions
Cat® Digital Voltage Regulator
Systems Operation
Systems Operation
VR3 VOLTAGE REGULATOR (10/12 LEAD), SELF-EXCITED SR4 GENERAT
Systems Operation
VR3 VOLTAGE REGULATOR PERMANENT MAGNET EXCITED SR4 GENERATOR
Systems Operation
VR4 VOLTAGE REGULATOR
Systems Operation
VR3F FLAT TOP VOLTAGE REGULATOR FOR 4/6 AND 10/12 LEAD, SELF
Customer Options
Digital Voltage Regulator
Display and Keypad
Digital Voltage Regulator
Fault Classifications
Digital Voltage Regulator
Fault Codes
Digital Voltage Regulator
General Information
Digital Voltage Regulator
Loading and Stopping Profile
Digital Voltage Regulator
Parameters
Digital Voltage Regulator
Remote Communication
Digital Voltage Regulator
Startup Profile Function
Digital Voltage Regulator
KVAR Regulation
Digital Voltage Regulator
Power Factor Regulation
Digital Voltage Regulator
Voltage Regulation
Digital Voltage Regulator
Line Loss Compensation
Digital Voltage Regulator
Reactive Voltage Droop
Digital Voltage Regulator
Cross Current Compensation
Digital Voltage Regulator
VR3F Voltage Regulator Connections (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
Digital Voltage Regulator Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
VR3F Voltage Regulator Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
VR3 Voltage Regulator Connections (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
Digital Voltage Regulator Connections (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
VR4 Voltage Regulator Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
VR3 Voltage Regulator Connections (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
Selection Guide for Voltage Regulator (All Except SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
Selection Guide for Voltage Regulator (SR4B for 3500 Engines)
Connection Diagrams: SR4 and SR4B Generators, Voltage Regulators, Options
General Information
Cat® Digital Voltage Regulator
Startup Profile Function
Cat® Digital Voltage Regulator
Loading and Stopping Profile
Cat® Digital Voltage Regulator
Voltage Regulation
Cat® Digital Voltage Regulator
Line Loss Compensation
Cat® Digital Voltage Regulator
Reactive Voltage Droop
Cat® Digital Voltage Regulator
Cross Current Compensation
Cat® Digital Voltage Regulator
KVAR Regulation
Cat® Digital Voltage Regulator
Power Factor Regulation
Cat® Digital Voltage Regulator
Parameters
Cat® Digital Voltage Regulator
Remote Communication
Cat® Digital Voltage Regulator
Voltage Control
Electric Power Generation Principles
Group Support Level
Cat® Digital Voltage Regulator
Features
Product Link For Generator Sets
Parameters
Product Link For Generator Sets
Testing and Adjusting
Testing And Adjusting
VR3 VOLTAGE REGULATOR (10/12 LEAD), SELF-EXCITED SR4 GENERAT
Testing And Adjusting
VR3 VOLTAGE REGULATOR PERMANENT MAGNET EXCITED SR4 GENERATOR
Testing And Adjusting
VR4 VOLTAGE REGULATOR
Testing And Adjusting
VR3F FLAT TOP VOLTAGE REGULATOR FOR 4/6 AND 10/12 LEAD, SELF
Fault Handling
Digital Voltage Regulator
General Information
Digital Voltage Regulator
Service Tools
Cat® Digital Voltage Regulator
Startup Procedure
Cat® Digital Voltage Regulator
High Voltage - Troubleshoot
Digital Voltage Regulator
Inaccurate Display - Troubleshoot
Digital Voltage Regulator
Low Voltage - Troubleshoot
Digital Voltage Regulator
No Voltage - Troubleshoot
Digital Voltage Regulator
Reverse VAR Condition - Troubleshoot
Digital Voltage Regulator
Unstable Voltage - Troubleshoot
Digital Voltage Regulator
Watchdog Alarm - Troubleshoot
Digital Voltage Regulator
Troubleshooting
Digital Voltage Regulator
Wiring Diagrams
Digital Voltage Regulator
General Information
Cat® Digital Voltage Regulator
Wiring Diagrams
Cat® Digital Voltage Regulator
Troubleshooting
Cat® Digital Voltage Regulator
No Voltage - Troubleshoot
Cat® Digital Voltage Regulator
Low Voltage - Troubleshoot
Cat® Digital Voltage Regulator
High Voltage - Troubleshoot
Cat® Digital Voltage Regulator
Unstable Voltage - Troubleshoot
Cat® Digital Voltage Regulator
No Voltage Droop - Troubleshoot
Cat® Digital Voltage Regulator
No Line Loss Compensation - Troubleshoot
Cat® Digital Voltage Regulator
Poor Voltage Regulation - Troubleshoot
Cat® Digital Voltage Regulator
Gain Setting - Adjust
Cat® Digital Voltage Regulator
Reverse VAR Condition - Troubleshoot
Cat® Digital Voltage Regulator
Generator Overcurrent - Troubleshoot
Cat® Digital Voltage Regulator
Startup Procedure
Digital Voltage Regulator
Earlier CDVR Dissimilarities
Cat® Digital Voltage Regulator

Caterpillar Parts SIS Catalog 3508 :

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The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
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