84 Rockwell Automation Publication DRIVES-AT005D-EN-P - May 2022
Appendix A Electrical Ratings, Recommended Protective Devices, and DC Bus Capacitance
Fuse Certification and Test Data
The following are copies of self-certification letters and test data for JKS and 170M fuses that are recommended in the previous tables in this
Appendix for DC input fusing.
Configuration A indicates one fuse in the (+) leg and one fuse in the (-) leg of the DC bus.
Bussmann JKS Fuses
Cooper Bussmann
P. O. Box 14460
St. Louis, MO 63178-4460
January 25, 2002
Sr. Project Engineer
Rockwell Automation
6400 West Enterprise Drive
P.O. Box 760
Mequon, WI 53092
Subject: DC Testing for JKS Fuses
Dear Mr.
At the request of Rockwell Automation, Bussmann has completed the DC testing for the JKS fuses and is pleased to present the attached
information indicating successful ‘Self-Certification DC Rating’ on all subject fuses.
Bussmann tested fuses to the following parameters specified by Rockwell Automation:
Short Circuit Current = 65 kA
Voltage = 810V DC
Time Constant 0.4 ms
Additional tests were performed for acceptability.
Short Circuit Current 30 times fuse amperage
Voltage = 810V DC
Time Constant 0.4 ms
The attached table identifies the fuses tested, the actual circuit parameters, and the circuit configuration. In the attached table, the Interrupting
Amps column specifies the fuses minimum and maximum amps the fuse will safely clear at 810V DC.
.
By way of this correspondence, Cooper Bussmann self-certifies the preceding fuses in end-user applications to the preceding parameters and the
attached data sheet.
Should you have any questions regarding this correspondence, please contact me at the listed address and numbers.
Regards,
Strategic OEM Accounts Manager
Cooper Bussmann
Circuit Configuration A
Fuse
Fuse
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