Rockwell Automation Allen-Bradley Kinetix 6000, User Manual

Page: 22 / 268

Publication 2094-UM001A-EN-P — September 2006
22 Planning the Kinetix 6000 Drive System Installation
Circuit Breaker/Fuse Selection
The Kinetix 6000 system utilizes internal short circuit output
protection and is suitable for use on a circuit capable of delivering up
to 100,000 amperes, when protected by class CC, J, L, and R fuses.
Circuit breakers with adequate widthstand and interrupt ratings, as
defined in NEC 2002, article 110.9 and 110.10, are also permitted.
The Bulletin 140M product may be another acceptable means of
protection with the Kinetix 6000 system. As with fuses and circuit
breakers, you must make sure that the selected components are
properly coordinated and meet applicable codes. When applying the
140M product, evaluation of the short circuit available current is
critical and must be kept below the short circuit rating of the 140M
product. As long as you do this review, and the conditions for use are
met, the 140M product is appropriate for use with the Kinetix 6000
system.
The line interface modules (LIM), (models 2094-AL09 and -BL02)
contain supplementary protection devices. When these models are
used, protection on the line side of the LIM with a maximum let
through current of 5000 amperes is required. Fuses must be class J or
CC only.
Overcurrent protection must be adequately coordinated per NEC
2002, article 240.
In most cases, fuses selected to match the drive input current rating
will meet the NEC requirements and provide the full drive capabilities.
Dual element, time delay (slow acting) fuses should be used to avoid
nuisance trips during the inrush current of power initialization.
Refer to Circuit Breaker/Fuse Specifications on page 177 for
recommended circuit breakers and fuses.
Refer to Power Specifications on page 170 for input current and inrush
current specifications for your IAM.