Danfoss VLT AutomationDrive FC 302 Operating Manual page 109

Specifications
Type aR fuses are recommended for drives in enclosure sizes D3h–D4h. See Table 10.10.
Model
N45K
N55K
N75K
N90K
N110
N132
N150
N160
N200
N250
N315
Table 10.10 D3h–D4h Power/Semiconductor Fuse Sizes
Bussmann
LPJ-21/2SP
Table 10.11 D1h–D8h Space Heater Fuse Recommendation
For UL compliance, use the Bussmann 170M series fuses for units supplied without a disconnect, contactor, or circuit breaker
option. If a disconnect, contactor, or circuit breaker option is supplied with the drive, see Table 10.12 to Table 10.15 for SCCR
ratings and UL fuse criteria.
10.7.2 Short-circuit Current Rating (SCCR)
The short-circuit current rating (SCCR) represents the maximum level of short-circuit current that the drive can safely
withstand. If the drive is not supplied with a mains disconnect, contactor, or circuit breaker, the SCCR of the drive is 100000
A at all voltages (200–690 V).
If the drive is supplied with a mains disconnect only, the SCCR of the drive is 100000 amps at all voltages (200–600 V). See
Table 10.12. If the drive is supplied with a contactor only, refer to Table 10.13 for the SCCR. If the drive contains both a
contactor and disconnect, see Table 10.14.
If the drive is supplied with a circuit breaker only, the SCCR depends on the voltage. Refer to Table 10.15.
Enclosure size
D5h
D7h
Table 10.12 D5h and D7h Drives Supplied with a Disconnect Only
1)
With an upstream branch protection Class J fuse with maximum rating of 600 A.
2) With an upstream branch protection Class J fuse with maximum rating of 800 A.
Enclosure size
D6h
D8h (excluding N250 380-500V model)
D8h (N250 380-500V model only)
Table 10.13 D6h and D8h Drives Supplied with a Contactor Only
1)
With gL/gG fuses: 425 A maximum fuse size for D6h, and 630 A maximum fuse size for D8h.
2) With external upstream Class J fuses: 450 A maximum fuse size for D6h, and 600 A maximum fuse size for D8h.
MG34U502
Operating Guide
200–240 V
ar-350
ar-400
ar-500
ar-500
ar-630
–
ar-800
–
–
–
–
415 V
IEC 1)
100000 A 100000 A
100000 A 100000 A
100000 A Contact Danfoss
Danfoss A/S © 09/2018 All rights reserved.
380–500 V
–
–
–
ar-315
ar-350
ar-400
–
ar-500
ar-630
ar-800
–
Rating
2.5 A, 600 V
≤ 600 V IEC/UL
1)
100000 A
2)
100000 A
480 V 600 V
UL 2) UL 2)
100000 A
100000 A
Not applicable
525–690 V
–
ar-160
ar-315
ar-315
ar-315
ar-315
–
ar-550
ar-550
ar-550
ar-550
10
690 V
IEC 1)
100000 A
100000 A
Not applicable
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