Iec Coordination With Short-Circuit Protection Devices - Danfoss VLT MCD 600 Operating Manual

VLT® Soft Starter MCD 600
Operating Guide

3.14 IEC Coordination with Short-circuit Protection Devices

These fuses were selected based on a start current of 300% FLC for 10 s.
Table 15: Models MCD6-0020B~MCD6-0579B
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
MCD6-0287B 352
MCD6-0323B 397
MCD6-0410B 410
MCD6-0527B 550
MCD6-0579B 579
Table 16: Models MCD6-0654B~MCD6-1250B/MCD6-0590C~MCD6-1134C, Bypassed Installation
Nominal rating (A)
MCD6-0654B 835
MCD6-0736B 940
MCD6-0950B 1070
MCD6-1154B 1230
MCD6-1250B 1250
MCD6-0590C 835
MCD6-0667C 940
MCD6-0839C 1210
MCD6-0979C 1430
MCD6-1134C 1620
24 | Danfoss A/S © 2020.12
2 2
SCR I t (A s) Type 1 coordination 480 V AC, 65 kA
Bussmann NH fuse links
1150 40NHG000B
7200 63NHG000B
80NHG000B
15000 100NHG000B
80000 160NHG00B
125000
320000 250NHG2B
315NHG2B
202000 355NHG2B
400NHG2B
320000 425NHG2B
781000 630NHG3B
2 2
SCR I t (A s) Type 1 coordination 500 V AC,
100 kA
1000NHG4G
2530000
1200NHG4G
3920000
OFAA5GG1250
7220000
1000NHG4G
2530000
OFAA5GG1250
3920000 OFAA5GG1600
7220000
System Design
Type 2 coordination 690 V AC,
65 kA Bussmann DIN 43 653
170M3010
170M3013
170M3014
170M3015
170M3016
170M3020
170M3021
170M6009
170M6010
170M6012
Type 2 coordination 690 V AC, 100 kA
170M6016
170M6017
Not available
170M6019
170M6016
170M6017
Not available
170M6021 (at 500 V AC)
AQ262141844215en-000401 / 175R1174