7.5 Fuses and Circuit Breakers
Fuses ensure that possible damage to the drive is limited to damages inside the unit. To ensure compliance with EN 50178,
use the recommended fuses as replacements. Use of fuses on the supply side is mandatory for IEC 60364 (CE) compliant
installations.
J8–J9 recommended fuses
Type aR fuses are recommended for enclosures J8–J9. See
.
Model
380–480 V
N90K
ar-315
N110
ar-315
N132
ar-350
N160
ar-400
N200
ar-500
N250
ar-630
N315
ar-800
Table 7.6 J8–J9 Power/Semiconductor Fuse Sizes
Model
Fuse Options
Bussman
Littelfuse
Littelfuse
Bussmann
Siba
Ferraz-
Shawmut
Ferraz-Shawmut
(Europe)
N90K
170M2619
LA50QS300-4
L50S-300
FWH-300A
20 189 20.315
A50QS300-4
6,9URD31D08A0315
N110
170M2619
LA50QS300-4
L50S-300
FWH-300A
20 189 20.315
A50QS300-4
6,9URD31D08A0315
N132
170M2620
LA50QS350-4
L50S-350
FWH-350A
20 189 20.350
A50QS350-4
6,9URD31D08A0350
N160
170M2621
LA50QS400-4
L50S-400
FWH-400A
20 189 20.400
A50QS400-4
6,9URD31D08A0400
N200
170M4015
LA50QS500-4
L50S-500
FWH-500A
20 610 31.550
A50QS500-4
6,9URD31D08A0550
N250
170M4016
LA50QS600-4
L50S-600
FWH-600A
20 610 31.630
A50QS600-4
6,9URD31D08A0630
N315
170M4017
LA50QS800-4
L50S-800
FWH-800A
20 610 31.800
A50QS800-4
6,9URD32D08A0800
Table 7.7 J8–J9 Power/Semiconductor Fuse Options, 380–480 V
Bussmann
Rating
LPJ-21/2SP
2.5 A, 600 V
Table 7.8 J8–J9 Space Heater Fuse Recommendation
NOTICE
DISCONNECT SWITCH
All units ordered and supplied with a factory-installed disconnect switch require Class L branch circuit fusing to meet
the 100 kA SCCR for the drive. If a circuit breaker is used, the SCCR rating is 42 kA. The input voltage and power rating
of the drive determine the specific Class L fuse. The input voltage and power rating are found on the product
nameplate. For more information regarding the nameplate, see
chapter 6 Mechanical Installation Considerations
Electrical Installation Con...
VLT® AutomationDrive FC 361
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