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BCS Switchgear Inc.
Arcflash Reduction Maintenance
Switch™ Application and Installation
Instructional Literature
New Information
Description
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
in a DS Retrofitted Breaker . . . . . . . . . . . . . . . . . . . . . 6
in a Non-DS Retrofitted Breaker . . . . . . . . . . . . . . . . . 7
Switch Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6. Setting and Testing the RSM . . . . . . . . . . . . . . . . . . . 14
Components for DS and Non-DS Breakers . . . . . . . . . . 15
Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Appendix B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
IL01906001E
bcsswitchgear.com | 888.599.0486
Switchgear | Circuit Breakers | Parts | Tech Support
Page
For more information visit: www.EatonElectrical.com
SAFETY PRECAUTIONS
POWER CIRCUIT BREAKERS ARE EQUIPPED WITH HIGH SPEED,
HIGH ENERGY OPERATING MECHANISMS. THE BREAKERS AND
THEIR ENCLOSURES ARE SIGNED WITH SEVERAL BUILT-IN INTER-
LOCKS AND SAFETY FEATURES INTENDED TO PROVIDE SAFE AND
PROPER OPERATING SEQUENCES. TO PROVIDE MAXIMUM PRO-
TECTION FOR PERSONNEL ASSOCIATED WITH THE INSTALLATION,
OPERATION, AND MAINTENANCE OF THESE BREAKERS, THE FOL-
LOWING PRACTICES MUST BE FOLLOWED. FAILURE TO FOLLOW
THESE PRACTICES MAY RESULT IN DEATH, PERSONAL INJURY, OR
PROPERTY DAMAGE.
• Periodic testing of this devise is required (see Section 6 "Set-
ting and Testing the RSM").
• Only qualified persons, as defined in the National Electric Code,
who are familiar with the installation and maintenance of power
circuit breakers and their associated switchgear assemblies
should perform any work associated with these breakers.
• Completely read and understand all instructions before attempt-
ing any installation, operation, maintenance, or modification of
these breakers.
• Always turn off and lock out the power source feeding the
breaker prior to attempting any installation, maintenance, or
modification of the breaker. Do not use the circuit breaker as
the sole means for isolating a high voltage circuit. Follow all
lockout and tagging rules of the National Electric Code and all
other applicable codes, regulations, and work rules.
• Do not work on a closed breaker or a breaker with 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,
causing crushing or cutting injuries.
• For drawout breakers, trip (open), and then remove the breaker
to a well-lit work area before beginning work.
• Do not perform any maintenance: including breaker charging,
closing, tripping, or any other function which could cause sig-
nificant movement of the breaker while it is on the extension
rails. Doing so may cause the breaker to slip from the rails and
fall, potentially causing severe personal injury to those in the
vicinity.
• Do not leave the breaker in an intermediate position in the
switchgear cell. Always leave it in the connected, discon-
nected, or (optional) test position. Failure to do so could lead
to improper positioning of the breaker and flashover, causing
death, serious personal injury, and / or property damage.
• Do not defeat any safety interlock. Such interlocks are
intended to protect personnel and equipment from damage due
to flashover and exposed contacts. Defeating an interlock
could lead to death, severe personal injury, and / or property
damage.
Need Help? 888.599.0486
WARNING
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Summary of Contents for Eaton CUTTLER-HAMMER Arcflash Reduction Maintenance Switch
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Page 1: Table Of Contents
BCS Switchgear Inc. Switchgear | Circuit Breakers | Parts | Tech Support Arcflash Reduction Maintenance Switch™ Application and Installation Instructional Literature SAFETY PRECAUTIONS New Information Description Page WARNING 1. Arcflash Reduction Maintenance Switch POWER CIRCUIT BREAKERS ARE EQUIPPED WITH HIGH SPEED, Application . -
Page 2: Arcflash Reduction Maintenance Switch Application
Instructional Literature BCS Switchgear Inc. Switchgear | Circuit Breakers | Parts | Tech Support Page 2 Effective: May 2005 Arcflash Reduction Maintenance Switch Application and Installation 1. Arcflash Reduction Maintenance Switch One of these RSs must be determined and selected by a person who is experienced in power system analysis. - Page 3 Instructional Literature BCS Switchgear Inc. Switchgear | Circuit Breakers | Parts | Tech Support Effective: May 2005 Page 3 Arcflash Reduction Maintenance Switch Application and Installation 1.3 Example Calculation Setting choices for the RS are: 2.5 ×, 4.0 ×, 5.9 ×, 7.6 × or ±...
- Page 4 Page 4 Effective: May 2005 Arcflash Reduction Maintenance Switch Application and Installation CURRENT IN AMPERES 1000 Before Manufacturer *Eaton Cutler-Hammer Manufacturer *CUTLER-HAMMER Description Digitrip RMS 510-910 Description Digitrip RMS 510-910 Frame/Model 1600 A Frame/Model 1600 A Sensor/Trip 1600.0 A Sensor/Trip 1600.0 A Plug 1600.0 A...
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Page 5: Arcflash Reduction Maintenance Switch Installation
Note: The Arcflash Reduction Maintenance Switch is designed to work DO NOT ATTEMPT TO INSTALL OR PERFORM MAINTENANCE ON with Eaton “10” series Digitrip trip units (510, 610, 810, and 910). If the EQUIPMENT WHILE IT IS ENERGIZED. SEVERE PERSONAL INJURY breaker has not been retrofitted with a “10”... -
Page 6: Installing The Arcflash Reduction Maintenance Switch In A Ds Retrofitted Breaker
Components Installed on a DS Breaker Trip Unit Mounting Frame. Note: The Arcflash Reduction Maintenance Switch can be installed on any Retrofitted breaker using an Eaton “10” series Digitrip trip unit (510, 610, 810, and 910). A. Following the instruction supplied with the original Retrofit kit, remove the Rating Plug from the Trip Unit, then remove the Trip Unit from Trip Unit Mounting Frame. -
Page 7: Installing The Arcflash Reduction Maintenance Switch In A Non-Ds Retrofitted Breaker
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, and 910). The photos used for illustrations in this section are of the Arcflash Reduction Maintenance Switch installed on a G.E. -
Page 8: Completion Of The Arcflash Reduction Maintenance Switch Installation
Instructional Literature Page 8 Effective: May 2005 Arcflash Reduction Maintenance Switch Application and Installation 5. Completion of the Arcflash Reduction Note: On a 510 trip unit, the 7-position external harness interlocking short- ing plus is considered the external harness. (See Figure 10). Maintenance Switch Installation Step 1: Installing the Arcflash Reduction Maintenance Switch Mode Selector Switch, Indicator Light, and... - Page 9 RSM while leaving a service loop for racking purposes. (If a longer mode selector switch harness is needed, contact your Eaton Representative.) 5. The mounting location should allow the mode selector switch harness to stay clear of the breaker during racking.
- Page 10 Instructional Literature Page 10 Effective: May 2005 Arcflash Reduction Maintenance Switch Application and Installation E. Remove the backing from the self-adhesive mode selector Note: The indicator light is pre-wired to the mode selector switch. There- fore, the hole for the indicator light must be close enough to the mode switch label, center the label above the mode selector switch selector switch to accommodate the wiring.
- Page 11 Instructional Literature Effective: May 2005 Page 11 Arcflash Reduction Maintenance Switch Application and Installation Figure 22. Indicator Light Installed on the Mounting Surface. Figure 20. Mode Selection Switch and LOTO Installed on the Mounting Surface. K. Insert the battery holder through the hole in the mounting sur- face cut in Step C.
- Page 12 Instructional Literature Page 12 Effective: May 2005 Arcflash Reduction Maintenance Switch Application and Installation Figure 24. Warning and Circuit Active Labels installed on the Mounting Surface. Step 2: Final Wiring and Breaker Preparation Figure 26. Connecting the Battery Holder to the Mode Selector Switch Battery Harness.
- Page 13 Instructional Literature Effective: May 2005 Page 13 Arcflash Reduction Maintenance Switch Application and Installation SERVICE LOOPS Figure 27. Routing of the Mode Selector Switch Harness and the Service Loop. D. Plug the male connector on the end of the mode selector switch harness into the receptacle on the right side of the Figure 28.
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Page 14: Setting And Testing The Rsm
Instructional Literature Page 14 Effective: May 2005 Arcflash Reduction Maintenance Switch Application and Installation 6. Setting and Testing the RSM WARNING Step 1: Setting the Reduction Setting DO NOT PERFORM ANY MAINTENANCE: INCLUDING BREAKER Note: For RSM actual settings, consult a qualified power systems engineer CHARGING, CLOSING, TRIPPING, OR ANY OTHER FUNCTION WHICH to determine the RS. -
Page 15: The Arcflash Reduction Maintenance Switch Installation Components For Ds And Non-Ds Breakers
Instructional Literature Effective: May 2005 Page 15 Arcflash Reduction Maintenance Switch Application and Installation 7. The Arcflash Reduction Maintenance Switch Installation Components for DS and Non-DS Breakers Note: Due to the wide 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. - Page 16 Note: If an updated DS Interface Board is needed and was not ordered with the Arcflash Reduction Maintenance Switch kit, contact your Eaton Repre- F. Using the original mounting hardware, spacers, and lock nuts sentative to secure an updated DS Interface Board.
- Page 17 Instructional Literature Effective: May 2005 Page 17 Arcflash Reduction Maintenance Switch Application and Installation Figure 33. RSM Assembly Installed on the Trip Unit 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 the bot- tom of the new DS Interface Board the trip unit mounting frame.
- Page 18 Instructional Literature Page 18 Effective: May 2005 Arcflash Reduction Maintenance Switch Application and Installation Appendix B: Sample Text Data Sheet SETTING MULT PICKUP 9.8 X 7.6 X 5.9 X 4.0 X 2.5 X Note: Pickup = Mult x Rating Plug Value CUSTOMER DEVICE DATE...
- Page 19 Instructional Literature Effective: May 2005 Page 19 Arcflash Reduction Maintenance Switch Application and Installation Notes: IL01906001E For more information visit: www.EatonElectrical.com...
- Page 20 DEALING OR USAGE OF TRADE, ARE MADE REGARDING THE INFORMATION, RECOMMENDATIONS AND DESCRIPTIONS CON- TAINED HEREIN. In no event will Eaton be responsible to the user in contract, in tort (including negligence), strict liability or other- wise, for any special, indirect, incidental, or consequential dam-...