High Fault Short-Circuit Current Ratings - Danfoss VLT MCD 600 Operating Manual

Operating Guide | VLT® Soft Starter MCD 600
Model
MCD6-0144B
MCD6-0171B
MCD6-0194B
MCD6-0244B
MCD6-0287B
MCD6-0323B
MCD6-0410B
MCD6-0527B
MCD6-0579B
1
Suitable for use in a circuit with the prospective current noted, when protected by any listed fuses or listed circuit breakers sized according to the NEC.

3.13.2 High Fault Short-circuit Current Ratings

Table 10: Maximum Fuse Rating [A] - High Fault Short-circuit Current
Model Nominal rating [A]
MCD6-0020B 24
MCD6-0034B 42
MCD6-0042B 52
MCD6-0063B 64
MCD6-0069B 69
MCD6-0086B 105
MCD6-0108B 115
MCD6-0129B 135
MCD6-0144B 184
MCD6-0171B 200
MCD6-0194B 229
MCD6-0244B 250
MCD6-0287 352
MCD6-0323B 397
MCD6-0410B 410
MCD6-0527B 550
MCD6-0579B 580
1
Suitable for use on a circuit capable of delivering not more than 65000 rms symmetrical amperes, 480 V AC maximum, when protected by fuses of the stated class and rating.
22 | Danfoss A/S © 2018.10
Nominal rating [A]
184
225
229
250
352
397
410
550
580
Short cct rating @480 V AC maximum
65 kA
3 cycle short cct rating @600 V AC
18 kA
30 kA
Listed fuse rating [A]
30
50
60
80
80
125
125
150
200
225
250
300
400
450
450
600
600
System Design
(1)
(1) Fuse class (1)
Any (J, T, K-1, RK1, RK5)
J, T, K-1, RK1
J, T
Any (J, T, K-1, RK1, RK5)
AQ262141844215en-000202 / 175R1174