7.3.2.2 Recommended Fuses for UL Compliance
•
The drive modules are supplied with built-in AC fuses. The modules have been qualified for 100 kA short circuit
current rating (SCCR) for the standard busbar configurations at all voltages (380–690 V AC).
•
The drive system is qualified for 100 kA SCCR with any Class L or Class T UL-listed fuses connected at the input
terminals of the drive modules, if no power options or extra busbars are connected externally.
•
The current rating of the Class L or Class T fuses should not exceed the listed fuse rating in
to
.
Drive
modules in
system
FC 302
modules
[kW]
FC 102 and FC
202 modules
[kW]
Recommended
fuse (maximum)
2
N250
N315
aR-630
2
N315
N355
aR-630
2
N355
N400
aR-630
2
N400
N450
aR-800
2
N450
N500
aR-800
4
N500
N560
aR-900
4
N560
N630
aR-900
4
N630
N710
aR-1600
4
N710
N800
aR-1600
4
N800
N1M0
aR-1600
Table 7.20 12-Pulse Drive Systems (380–500 V AC)
Any minimum 500 V UL-listed fuse can be used for the 380–500 V AC
drive systems.
Drive
modules in
system
FC 302
modules
[kW]
FC 102 and FC
202 modules
[kW]
Recommended
fuse (maximum)
2
N450
N500
aR-1600
4
N500
N560
aR-2500
4
N560
N630
aR-2500
4
N630
N710
aR-2500
4
N710
N800
aR-2500
4
N800
N1M0
aR-2500
Table 7.21 6-Pulse Drive Systems (380–500 V AC)
Any minimum 500 V UL-listed fuse can be used for the 380–500 V AC
drive systems.
Drive
modules in
system
FC 302
modules
[kW]
FC 102 and
FC 202
modules [kW]
Recommended
fuse (maximum)
2
N250
N315
aR-550
2
N315
N355
aR-630
2
N355
N400
aR-630
2
N400
N500
aR-630
2
N500
N560
aR-630
2
N560
N630
aR-900
4
N630
N710
aR-900
4
N710
N800
aR-900
4
N800
N900
aR-900
4
N900
N1M0
aR-1600
4
N1M0
N1M2
aR-1600
Table 7.22 12-Pulse Drive Systems (525–690 V AC)
Any minimum 700 V UL-listed fuse can be used for the 525–690 V AC
drive systems.
Drive
modules in
system
FC 302
modules
[kW]
FC 102 and FC
202 modules
[kW]
Recommended
fuse (maximum)
4
N630
N710
aR-1600
4
N710
N800
aR-2000
4
N800
N900
aR-2500
4
N900
N1M0
aR-2500
4
N1M0
N1M2
aR-2500
Table 7.23 6-Pulse Drive Systems (525–690 V AC)
Any minimum 700 V UL-listed fuse can be used for the 525–690 V AC
drive systems.
7.3.3 Fuse Replacement
If it becomes necessary to replace an AC or DC fuse, refer to the
VLT
®
FC Series, D-frame Service Manual
and the
VLT
®
Parallel
Drive Modules DC Fuses Installation Instructions
.
7.3.4 Short Circuit Current Rating (SCCR)
The drive modules are supplied with built-in AC fuses. The modules have been qualified for 100 kA short circuit current
rating (SCCR) for the standard busbar configurations at all voltages (380–690 V AC). For more information on short-circuit
protection of the drive modules, see
. For more information on the recommended fuses for CE or UL
compliance, see
chapter 7.3.2.1 Recommended Fuses for CE Compliance
or
chapter 7.3.2.2 Recommended Fuses for UL
, respectively.
Specifications
VLT
®
Parallel Drive Modules
70
Danfoss A/S © 08/2017 All rights reserved.
MG37L202
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