Fuses And Circuit Breakers - Danfoss VLT HVAC Drive FC 102 Design Manual

Electrical Installation Con...

10.5 Fuses and Circuit Breakers

Fuses ensure that possible damage to the drive is limited to damages inside the drive. To ensure compliance with EN 50178,
use the recommended fuses as replacements. Use of fuses on the supply side is mandatory for IEC 60364 (EC) and NEC 2009
(UL) compliant installations.
Branch circuit protection
To protect the installation against electrical and fire hazard, all branch circuits in an installation, such as those branch circuits
found in switchgear and machines, must be protected against short circuit and overcurrent according to national/interna-
tional regulations.
Fuses or circuit breakers are mandatory to comply with IEC 60364.
Enclosure Model
E P315
P355
P400
P450
F P500
P500
P560
P630
P710
P1000
Table 10.10 Recommended Fuses for CE Compliance, 380–480 V
Enclosure Model
E P450
P500
P560
P630
F P710
P800
P900
P1M0
P1M2
P1M4
Table 10.11 Recommended Fuses for CE Compliance, 525–690 V
MG16C302
Design Guide
Recommended
fuse size
aR-900
aR-900
aR-900
aR-900
aR-1600
aR-2000
aR-2500
aR-2500
aR-2500
aR-2500
Recommended
fuse size
aR-700
aR-900
aR-1600
aR-2000
aR-2500
Danfoss A/S © 11/2017 All rights reserved.
Recommended
maximum fuse
aR-900
aR-900
aR-900
aR-900
aR-1600
aR-2000
aR-2500
aR-2500
aR-2500
aR-2500
Recommended
maximum fuse
aR-700
aR-900
aR-1600
aR-2000
aR-2500
177
10 10