Rockwell Automation 2094-EN02D-M01-Sx Kinetix 6200 and Kinetix 6500 Modular Multi-axis Servo Drives User Manual - Manual (Page 30)

30 Rockwell Automation Publication 2094-UM002E-EN-P - May 2012
Chapter 2 Planning the Kinetix 6200 and Kinetix 6500 Drive System Installation
Circuit Breaker/Fuse Options
The 2094-BC
xx-Mxx-M and 2094-BMxx-M drive modules and the
Kinetix 6000M integrated drive-motor system (2094-SEPM-B24-S IPIM
module and MDF-SB
xxxxx IDM units) use internal solid-state motor short-
circuit protection and, when protected by suitable branch circuit protection, are
rated for use on a circuit capable of delivering up to 200,000 A. Fuses or circuit
breakers, with adequate withstand and interrupt ratings, as defined in NEC or
applicable local codes, are permitted.
The 2094-BL02 LIM module contains supplementary protection devices and,
when protected by suitable branch circuit protection, is rated for use on a circuit
capable of delivering up to 5000 A. When this module is used, protection on the
line side of the LIM module is required. Fuses must be class J or CC only.
The 2094-BL
xxS, and 2094-XL75S-Cx LIM modules contain branch circuit
rated devices suitable for use on a circuit capable of delivering up to 65,000 A
(400V-class).
Refer to the Line Interface Module Installation Instructions, publication
2094-IN005 , for power specifications and more information on using the LIM
module.
The Bulletin 140M and 140U products are another acceptable means of
protection. As with fuses and circuit breakers, you must make sure that the
selected components are properly coordinated and meet applicable codes
including any requirements for branch circuit protection. When applying the
140M/140U product, evaluation of the short circuit available current is critical
and must be kept below the short circuit current rating of the 140M/140U
product.
In most cases, class CC, J, L, and R fuses selected to match the drive input current
rating will meet the NEC requirements or applicable local codes, 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.