In this example, the calculated short-circuit current is 9920 A. This is more than the
minimum required short-circuit current for the drive aR fuse type 170M6016 (9100 A).
Thus, the fuse 170M6016 can be used.
Fuses (UL)
UL fuses for branch circuit protection per NEC are listed below. Obey local regulations.
UL fusesInput
current
(A)
ACS580-04-…
TypeUL classManufacturerVA
U
n
= 480 V
JJS-600TBussmann600600483505A-4
A4BY800LFerraz600800573585A-4
A4BY800LFerraz600800623650A-4
A4BY1000LFerraz6001000705725A-4
A4BY1000LFerraz6001000807820A-4
A4BY1000LFerraz6001000807880A-4
1. Fuses are required as part of the installation, are not included in the base drive
configuration and must be provided by others.
2. Fuses with a higher current rating than specified must not be used.
3. The UL listed fuses recommended by ABB are the required branch circuit protection
per NEC. Circuit breakers listed in section Circuit breakers (UL) are also acceptable
as branch circuit protection.
4. The recommended size or smaller UL listed 248 fast acting, time delay, or high
speed fuses must be used to maintain the UL listing of the drive. Additional
protection can be used. Refer to local codes and regulations.
5. A fuse of a different class can be used at the high fault rating where the
I
peak
and
I
2
t
of the new fuse is not greater than that of the specified fuse.
6. UL listed 248 fast acting, time delay, or high speed fuses from other manufacturers
can be used if they meet the same class and rating requirements specified in the
rules above.
7. When installing a drive, always follow ABB installation instructions, NEC
requirements and local codes.
8. Alternative fuses can be used if they meet certain characteristics. For acceptable
fuses, see the manual supplement (3AXD50000645015).
In multicable installations, install only one fuse per phase (not one fuse per conductor).
Circuit breakers (IEC)
The table below lists the circuit breakers that can be used with the drive.
184 Technical data
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