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For more information visit: www.EatonElectrical.com

IL01906001E

Instructional Literature

Page

 

16

Effective: May 2005

Arcflash Reduction Maintenance Switch

Application and Installation

Appendix A: DS Interface Board Installation Procedure

Figure 31. Overview: New DS Interface Board and RSM Installed 

on the DS Trip Unit Mounting Frame.

If you are installing the Arcflash Reduction Maintenance Switch on 

a DS breaker that was retrofitted with a Retrofit kit purchased 

before 06/05 (DS Interface Board P/N 256P726H04), follow the 

procedure detailed below to install the updated DS Interface 

Board.

Note: 

If an updated DS Interface Board is needed and was not ordered with 

the Arcflash Reduction Maintenance Switch kit, contact your Eaton Repre-

sentative to secure an updated DS Interface Board.

A. Align the holes in the Reduction Setting Module (RSM) with 

the existing holes in the RSM mounting bracket.  Secure the 

RSM to the mounting bracket using the (2) .112-40 × 0.25" 

thread cutting pan head screws supplied.

B. Note the connection point of each harness to the DS Interface 

Board (positions P1 through P10).  Mark each harness for 

reconnection later in the installation process.

Figure 32. Connection on the DS Interface Board.

C. Disconnect each harness from the DS Interface Board.

D. Remove and save the four screws, spacers, and lock nuts 

securing the DS Interface Board to the trip unit mounting 

frame.  Remove the DS Interface Board.

E. Align the RSM assembly and the new DS Interface Board with 

the two holes near the top of the trip unit mounting frame.

F. Using the original mounting hardware, spacers, and lock nuts 

removed in Step D or the supplied .112-40 hardware, secure 

the top of the new DS Interface Board and the RSM assembly 

to the trip unit mounting frame.

P6

P6

1

1

1

1

25

25

P5

P5

P4

P4

P7

P7

P1

P1

1

1

1

1

1

1

1

24

24

P3

P3

JPR2J

P

R

2

JPR1J

P

R

1

P2

P2

P8

P8

P9

P9

P10

P10

47

47

P6

1

1

1

1

25

P5

P4

P7

P1

1

1

1

1

1

1

1

24

P3

JPR2

JPR1

P2

P8

P9

P10

47

1

11

1

P

P

DSD

S

CIRCUIT BREAKER INTERFACEC

IR

C

U

IT

 B

R

E

A

K

E

R

 IN

T

E

R

F

A

C

E

W / ARC FLASH PC BOARDW

 / 

A

R

C

 F

L

A

S

H

 P

C

 B

O

A

R

D

500P147H015

0

0

P

1

4

7

H

0

1

Summary of Contents for CUTTLER-HAMMER Arcflash Reduction Maintenance...

Page 1: ...th the closing springs charged Trip open the breaker and be sure the stored energy springs are discharged before performing any work The breaker may trip open or the charging springs may discharge cau...

Page 2: ...t currents that flow through the circuit breaker associated with the Arcflash Reduction Mainte nance Switch This setting choice normally does not change unless there are future system modifications th...

Page 3: ...12 16 kA 10 pickup range of 10 94 to 13 38 kA 3 Setting 5 9 1600 A 9 44 kA 10 pickup range of 8 50 to 10 38 kA 4 Setting 4 0 1600 A 6 40 kA 10 pickup range of 5 76 to 7 04 kA 5 Setting 2 5 1600 A 4 00...

Page 4: ...T 7 SDPU 6 9600A SDT 0 2 I 2 T Out Manufacturer CUTLER HAMMER Description Digitrip RMS 510 910 Frame Model 1600 A Sensor Trip 1600 0 A Plug 1600 0 A Settings Phase LDPU 1 1600A LDT 7 SDPU 6 9600A SDT...

Page 5: ...it Kit A Trip the breaker and remove it from the cell Move the breaker to a clean well lit work area Note It is the responsibility of the installer to insure that the breaker and all original componen...

Page 6: ...efore 06 05 P N 256P726H04 follow the procedures detailed in Appendix A to install an updated DS Interface Board See Fig ure 5 to help identify which DS Interface Board is installed in the breaker Fig...

Page 7: ...nance Switch Components Installed on a Non DS Breaker Note The Arcflash Reduction Maintenance Switch can be installed on any Retrofitted breaker using an Eaton 10 series Digitrip trip unit 510 610 810...

Page 8: ...er Each installation of the Arcflash Reduction Maintenance Switch mode selector switch indicator light and battery holder may vary due to the type of breaker type of cell or components options mounted...

Page 9: ...that the harness connecting the mode selector switch to the indicator light is short so the indicator light must be installed in close proximity to the mode selector switch Mark the center of the moun...

Page 10: ...rface D Using the battery holder as a template mark then drill four 4 0 109 holes in the mounting surface to accept the battery holder mounting screws Figure 17 Marking the Battery Holder Mounting Hol...

Page 11: ...y with the indicator light housing The con tact block assembly is self locking Insert the contact block assembly into the indicator light until the locking click is heard Ensure it is locked into plac...

Page 12: ...on to the RSM making sure it is away from any moving parts within the breaker In routing the harness be sure to leave a service loop in the harness to facilitate racking the breaker in to and out of t...

Page 13: ...ce and away from any moving parts within the breaker F For more information on the RSM wiring and additional cus tomer connections refer to the wiring and connections draw ing Figure 29 G Disconnect t...

Page 14: ...evice clear all newly installed components and harnesses Step 4 Activating the RSM A To activate the RSM turn the mode selector switch to the Maintenance Mode position Close the LOTO cover then follow...

Page 15: ...variety of breakers with which the Arcflash Reduction Maintenance Switch Installation can be used some excess hardware may remain when the Arcflash Reduction Maintenance Switch Retrofit is complete SE...

Page 16: ...the 2 112 40 0 25 thread cutting pan head screws supplied B Note the connection point of each harness to the DS Interface Board positions P1 through P10 Mark each harness for reconnection later in th...

Page 17: ...it Mounting Frame Figure 34 New DS Interface Board Installed on the Trip Unit Mounting Frame G Using the remaining screws spacers and lock nuts removed in Step D or the supplied 112 40 hardware secure...

Page 18: ...erature Page 18 Effective May 2005 Arcflash Reduction Maintenance Switch Application and Installation Appendix B Sample Text Data Sheet SETTING MULT PICKUP R1 9 8 X R2 7 6 X R3 5 9 X R4 4 0 X R5 2 5 X...

Page 19: ...IL01906001E For more information visit www EatonElectrical com Instructional Literature Effective May 2005 Page 19 Arcflash Reduction Maintenance Switch Application and Installation Notes...

Page 20: ...d to be all inclusive or cover ing all contingencies If further information is required Eaton should be consulted NO WARRANTIES EXPRESSED OR IMPLIED INCLUDING WAR RANTIES OF FITNESS FOR A PARTICULAR P...

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