
Table 17: Models MCD6-0160C~MCD6-1134C, Continuous Connection
Nominal rating (A) SCR I
2
t (A
2
s) Type 1 coordination 500 V AC, 100
kA
Type 2 coordination 690 V AC, 100
kA
MCD6-0654B 190
320000
250NHG2B
170M3020
MCD6-0736B 260
315NHG2B
170M3021
MCD6-0950B 350
202000
355NHG2B
170M6009
MCD6-1154B 475
320000
425NHG2B
170M6010
MCD6-1250B 565
781000
630NHG3B
170M6011
MCD6-0590C 735
2530000
1000NHG4G
170M6016
MCD6-0667C 830
MCD6-0839C 1025
1200NHG4G
170M6017
MCD6-0979C 1170
3920000
OFAA5GG1250
Not available
MCD6-1134C 1220
7220000
170M6019
3.15 UL Coordination with Short-circuit Protection Devices
3.15.1 Standard Fault Short Circuit
3.15.1.1 Models MCD6-0020B~MCD6-0579B
Suitable for use on a circuit capable of delivering not more than the stated level of amperes (symmetrical rms), 600 V AC maximum.
These nominal ratings are based on a start current of 300% FLC for 10 s.
Table 18: Maximum Fuse Rating [A] - Standard Fault Short-Circuit Current
Model
Nominal rating [A]
3 cycle short cct rating @600 V AC
(1)
MCD6-0020B
24
5 kA
MCD6-0034B
42
MCD6-0042B
52
10 kA
MCD6-0063B
64
MCD6-0069B
69
MCD6-0086B
105
MCD6-0108B
120
MCD6-0129B
135
MCD6-0144B
184
18 kA
MCD6-0171B
225
MCD6-0194B
229
MCD6-0244B
250
MCD6-0287B
352
MCD6-0323B
397
AQ262141844215en-000401 / 175R1174 | 25
Danfoss A/S © 2020.12
System Design
VLT® Soft Starter MCD 600
Operating Guide