Fuses And Circuit Breakers - Danfoss VLT AutomationDrive FC 302 Design Manual

Electrical Installation Con...

10.5 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) and NEC 2009
(UL) compliant installations.
D1h–D8h recommended fuses
Type aR fuses are recommended for enclosures D1h–D8h. See Table 10.9.
Model
N55K
N75K
N90K
N110
N132
N160
N200
N250
N315
Table 10.9 D1h–D8h Power/semiconductor Fuse Sizes
Model
Bussman Littelfuse
N90K 170M2619 LA50QS300-4
N110 170M2620 LA50QS350-4
N132 170M2621 LA50QS400-4
N160 170M4015 LA50QS500-4
N200 170M4016 LA50QS600-4
N250 170M4017 LA50QS800-4
Table 10.10 D1h–D8h Power/semiconductor Fuse Options, 380–500 V
Model Bussmann
N55K 170M2616
N75K 170M2619
N90K 170M2619
N110 170M2619
N132 170M2619
N160 170M4015
N200 170M4015
N250 170M4015
N315 170M4015
Table 10.11 D1h–D8h Power/semiconductor Fuse Options, 525–690 V
Bussmann
LPJ-21/2SP
Table 10.12 D1h–D8h Space Heater Fuse Recommendation
If the drive is not supplied with a mains disconnect, contactor, or circuit breaker, the Short Circuit Current Rating (SCCR) of
the drives is 100000 A at all voltages (380–690 V).
If the drive is supplied with a mains disconnect, the SCCR of the drive is 100000 amps at all voltages (380–690 V).
If the drive is supplied with a circuit breaker, the SCCR depends on the voltage. See Table 10.13.
MG38C202
Design Guide
380–500 V
–
–
ar-315
ar-350
ar-400
ar-500
ar-630
ar-800
–
Fuse Options
Littelfuse Bussmann Siba
L50S-300 FWH-300A 20 189 20.315
L50S-350 FWH-350A 20 189 20.350
L50S-400 FWH-400A 20 189 20.400
L50S-500 FWH-500A 20 610 31.550
L50S-600 FWH-600A 20 610 31.630
L50S-800 FWH-800A 20 610 31.800
Siba Ferraz-Shawmut European
20 610 31.160 6,9URD30D08A0160
20 610 31.315 6,9URD31D08A0315
20 610 31.315 6,9URD31D08A0315
20 610 31.315 6,9URD31D08A0315
20 610 31.315 6,9URD31D08A0315
20 620 31.550 6,9URD32D08A0550
20 620 31.550 6,9URD32D08A0550
20 620 31.550 6,9URD32D08A0550
20 620 31.550 6,9URD32D08A0550
Danfoss A/S © 01/2018 All rights reserved.
525–690 V
Ferraz- Ferraz-Shawmut
Shawmut (Europe)
A50QS300-4 6,9URD31D08A0315
A50QS350-4 6,9URD31D08A0350
A50QS400-4 6,9URD31D08A0400
A50QS500-4 6,9URD31D08A0550
A50QS600-4 6,9URD31D08A0630
A50QS800-4 6,9URD32D08A0800
Ferraz-Shawmut North American
A070URD30KI0160
A070URD31KI0315
A070URD31KI0315
A070URD31KI0315
A070URD31KI0315
A070URD32KI0550
A070URD32KI0550
A070URD32KI0550
A070URD32KI0550
Rating
2.5 A, 600 V
ar-160
ar-315
ar-315
ar-315
ar-315
ar-550
ar-550
ar-550
ar-550
Ferraz-Shawmut
(North America)
A070URD31KI0315
A070URD31KI0350
10
A070URD31KI0400
A070URD31KI0550
A070URD31KI0630
A070URD31KI0800
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