Fuses - Danfoss VLT AQUA Drive FC 202 Operating Manual

Specifications

8.7 Fuses

8.7.1 Fuse Selection
Use recommended fuses and/or circuit breakers on the supply side as protection if there is a component breakdown inside
the frequency converter (first fault).
NOTICE
Use of fuses on the supply side is mandatory for IEC 60364 (CE) and NEC 2009 (UL) compliant installations.
Use the recommended fuses to ensure compliance with EN 50178. Use of recommended fuses and circuit breakers ensures
that possible damage to the frequency converter is limited to damages inside the unit. For further information, see
Application Note Fuses and Circuit Breakers.
The fuses in Table 8.5 to Table 8.7 are suitable for use on a circuit capable of delivering 100000 A
depending on the frequency converter voltage rating. With the proper fusing, the frequency converter short-circuit current
rating (SCCR) is 100000 A
N110K–N315
N75K–N400
8 8
Table 8.5 Recommended Fuses
Power Bussmann
size PN
N110K 170M2619 LA50QS300-4 L50S-300
N132 170M2620 LA50QS350-4 L50S-350
N160 170M2621 LA50QS400-4 L50S-400
N200 170M4015 LA50QS500-4 L50S-500
N250 170M4016 LA50QS600-4 L50S-600
N315 170M4017 LA50QS800-4 L50S-800
Table 8.6 Fuse Options for 380–480 V Frequency Converters
Power size
N75k T7
N90k T7
N110 T7
N132 T7
N160 T7
N200 T7
N250 T7
N315 T7
N400 T7
Table 8.7 Fuse Options for 525–690 V Frequency Converters
For UL Compliance, use the Bussmann 170M series fuses for units supplied without a contactor-only option. See Table 8.9 for
SCCR ratings and UL fuse criteria if a contactor-only option is supplied with the frequency converter.
70
VLT
.
rms
380–480 V Type aR
525–690 V Type aR
Littelfuse PN Littelfuse Bussmann
PN PN
FWH-300A
FWH-350A
FWH-400A
FWH-500A
FWH-600A
FWH-800A
Bussmann PN Siba PN
170M2616 20 610 31.160
170M2619 20 610 31.315
170M2619 20 610 31.315
170M2619 20 610 31.315
170M2619 20 610 31.315
170M4015 20 620 31.550
170M4015 20 620 31.550
170M4015 20 620 31.550
170M4015 20 620 31.550
Danfoss A/S © 11/2016 All rights reserved.
®
AQUA Drive FC 202
Siba PN Ferraz Shawmut
PN
20 610 A50QS300-4
31.315
20 610 A50QS350-4
31.350
20 610 A50QS400-4
31.400
20 610 A50QS500-4
31.550
20 610 A50QS600-4
31.630
20 610 A50QS800-4
31.800
Ferraz Shawmut European PN
6,9URD30D08A0160
6,9URD31D08A0315
6,9URD31D08A0315
6,9URD31D08A0315
6,9URD31D08A0315
6,9URD32D08A0550
6,9URD32D08A0550
6,9URD32D08A0550
6,9URD32D08A0550
(symmetrical),
rms
Ferraz Shawmut PN Ferraz Shawmut PN
(Europe) (North America)
6,9URD31D08A0315 A070URD31KI0315
6,9URD31D08A0350 A070URD31KI0350
6,9URD31D08A0400 A070URD31KI0400
6,9URD31D08A0550 A070URD31KI0550
6,9URD31D08A0630 A070URD31KI0630
6,9URD32D08A0800 A070URD31KI0800
Ferraz Shawmut North American PN
A070URD30KI0160
A070URD31KI0315
A070URD31KI0315
A070URD31KI0315
A070URD31KI0315
A070URD32KI0550
A070URD32KI0550
A070URD32KI0550
A070URD32KI0550
MG21A402