Danfoss VLT AQUA Drive FC 202, Operating Manual

Page: 144 / 174

Table 49: Fuse Options
Input voltage (V) Model Bussmann part number
380–480 N355–N400 170M6014
380–480 N450–N560 170M7309
525–690 All 170M7342
The fuses listed in table 49 are suitable for use on a circuit capable of delivering 100000 A
rms
(symmetrical), depending on the drive
voltage rating. With the proper fusing, the drive short-circuit current rating (SCCR) is 100000 A
rms
. E1h and E2h drives are supplied with
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.
NOTICE
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 50: Disconnect Switch SCCR Requirements
Input voltage (V) Model Short circuit rating (A) Required protection
380–480 N355–N450 42000 Circuit breaker
100000 Class L fuse, 800 A
380–480 N500–N560 42000 Circuit breaker
100000 Class L fuse, 1200 A
525–690 N450–N630 42000 Circuit breaker
100000 Class L fuse, 800 A
525–690 N710–N800 42000 Circuit breaker
100000 Class L fuse, 1200 A
Specifications
Operating Guide | VLT® AQUA Drive FC 202
AQ275652274277en-000101 / 130R0708
142 | Danfoss A/S © 2020.01