Danfoss VLT AutomationDrive FC 302 Operating Manual page 142

Operating Guide | VLT® AutomationDrive FC 302
Table 47: Fuse Options
Input voltage (V)
380–500
380–500
525–690
The fuses listed in table 47 are suitable for use on a circuit capable of delivering 100000 A
voltage rating. With the proper fusing, the drive short-circuit current rating (SCCR) is 100000 A
internal drive fusing to meet the 100 kA SCCR. E3h and E4h drives must be fitted with Type aR fuses to meet the 100 kA SCCR.
DISCONNECT SWITCH SCCR REQUIREMENTS
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 determines the specific
-
Class L fuse. The input voltage and power rating are found on the product nameplate.
Table 48: Disconnect Switch SCCR Requirements
Input voltage (V)
380–500
380–500
525–690
525–690
142 | Danfoss A/S © 2019.12
Model
N315–N355
N400–N500
All
N O T I C E
Model Short circuit rating (A)
N315–N400 42000
100000
N450–N500 42000
100000
N355–N560 42000
100000
N630–N710 42000
100000
Bussmann part number
170M6014
170M7309
170M7342
(symmetrical), depending on the drive
rms
. E1h and E2h drives are supplied with
rms
Required protection
Circuit breaker
Class L fuse, 800 A
Circuit breaker
Class L fuse, 1200 A
Circuit breaker
Class L fuse, 800 A
Circuit breaker
Class L fuse, 1200 A
AQ275652476278en-000101 / 130R0709
Specifications