Recommended Fuse Ratings For Ul Installation - Danfoss VLT HVAC Drive FC 102 Operating Manual

VLT® HVAC Drive FC 102
Operating Guide
Model Fuse P/N
N315 Mersen NH3GG69V425
N400 Mersen NH3GG69V500
N450 Mersen NH3GG69V500
N500 Mersen NH4GG69V630
N560 Mersen NH4GG69V800
N630 Mersen NH4GG69V800
N710 ABB OFAA4AM1000
N800 ABB OFAA4AM1000

5.9.3 Recommended Fuse Ratings for UL Installation

The fuses and MCCBs contained in the enclosed drive are suitable for both short circuit and branch circuit protection. Use only these
fuses.
UL Approval is valid for maximum input voltage of 600 V. Per UL508A, the short-circuit current rating (SCCR) is as follows:
• Enclosed drives with a fusible disconnect or fusible disconnect and contactor option have 65 kA SCCR at the rated voltage.
• Enclosed drives with single switchgear (mains contactor only or non-fusible disconnect only option) have a 5 kA SCCR, but can
reach 65 kA if the recommended Class fuses are used upstream.
• Enclosed drives with the MCCB option have a 65 kA interrupting rating for 380–480 V. For 525–690 V, the interrupting rating is
30 kA for the N355 model and 50 kA for the others.
The table values are calculated using correction factors for a 40 °C (104 °F) ambient operating condition and using cables with a
minimum insulation rating of 90 °C (194 °F).
Table 69: Recommended Fuse Ratings for UL Installation, 380–480 V
Model Fuse P/N (Mersen)
N110 A4J300
N132 A4J350
N160 A4J400
N200 A4J500
N250 A4J600
N315 AABY750
N355 A4BY800
N400 A4BY1000
N450 A4BY1000
N500 A4BY1100
N560 A4BY1200
Danfoss A/S © 2021.11
Fuse size Rated cur-
rent [A]
3 425
3 500
3 500
4 630
4 800
4 800
4 1000
4 1000
Fuse P/N (Danfoss) Maximum current
[A]
70CPE10965 300
70CPE10966 350
70CPE10522 400
70CPE10968 500
70CPE10523 600
70CPE10969 750
70CPE10974 800
70CPE10975 1000
70CPE10975 1000
70CPE10976 1100
70CPE10977 1200
Minimum pro- Maximum fuse
spective SC cur- rating F1 [A]
rent of the grid
[kA]
9.5 425
12 500
12 500
14 630
19 800
19 800
25 1000
25 1000
Maximum fuse rat-
ing F1 [A]
300
350
400
500
600
750
800
1000
1000
1100
1200
AQ262141314214en-000301 / 130R0880 | 105
Electrical Installation
Minimum volt- Type F1
age rating [V]
690 gG/gL
690 gG/gL
690 gG/gL
690 gG/gL
690 gG/gL
690 gG/gL
690 aM
690 aM
Minimum voltage Class F1
rating [V]
500 Class J
500 Class J
500 Class J
500 Class J
500 Class J
500 Class L
500 Class L
500 Class L
500 Class L
500 Class L
500 Class L