Fuse sizing, Fuse sizing -9 – Rockwell Automation 2098-IPD-xxx Ultra5000 Intelligent Positioning Drives Installation Manual User Manual
Page 23
Publication 2098-IN001E-EN-P — April 2002
Installing Your Ultra5000
1-9
Fuse Sizing
The Ultra5000 is listed by Underwriters Laboratories, Inc. with fuses
sized as four times the continuous output current of the drives (FLA),
according to UL 508C.
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 the section
for input
current and inrush current specifications.
The Ultra5000 utilizes solid state motor short circuit protection rated as
shown in the table below.
Drive Models:
Short Circuit Current Rating with No
Fuse Restrictions:
Short Circuit Current Rating with Fuse
Restrictions:
2098-IPD-
xxx-xx
Suitable for use on a circuit capable of
delivering not more than 5000 rms
symmetrical amperes, 240V maximum.
Suitable for use on a circuit capable of
delivering not more than 200,000 rms
symmetrical amperes, 240V maximum,
when protected by high interrupting
capacity, current limiting fuses meeting UL
198C (Class CC, G, J, L, R, T).
2098-IPD-HV
xxx-xx
Suitable for use on a circuit capable of
delivering not more than 5000 rms
symmetrical amperes, 480V maximum.
Suitable for use on a circuit capable of
delivering not more than 200,000 rms
symmetrical amperes, 480V maximum,
when protected by high interrupting
capacity, current limiting fuses meeting UL
198C (Class CC, G, J, L, R, T).
Mains Input Fuses
Mains input fuses shall be dual element
time delay types class RK5, J or CC only.
Fuse current ratings shall be the following,
or the closest standard value to these
minimums:
2098-IPD-HV030-
xx (3kW)
2098-IPD-HV050-
xx (5kW)
2098-IPD-HV750-
xx (10kW)
2098-IPD-HV100-
xx (15kW)
2098-IPD-HV220-
xx (22kW)
5 A
8 A
17 A
25 A
35 A
Auxiliary Input Fuses
Auxiliary input fuses shall be dual element
time delay types class RK5, J or CC only.
Fuse current rating shall be the following, or
the closest standard value to these
minimums.
All drive sizes
0.4 A