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3.4 Fuses
The number of mains fuses depends on the input current of all drives
connected via the common DC bus.
Choose fuse ratings as low as possible according to the power of the
drive as well as the conductor cross section.
See manual of the respective product for more information.
The maximum permissible fuse ratings must not be exceeded.
3.4.1 DC bus connection of single-phase drives
Single mains fuse A single mains fuse is sufficient if the total input current of all drives
connected via the common DC bus is less than the maximum fuse rat-
ing shown in the table below.
Single mains fuse Maximum fuse rating
LXM32∙∙∙∙M2 A 25
PC/- PA/+ PC/- PA/+ PC/- PA/+
DC+
DC
-
N/L2
L1
N/L2 L1 N/L2 L1 N/L2 L1
Figure 2: Single mains fuse for single-phase drives
LXM32
3 Engineering
Common DC bus
25
MNA01M001EN, V1.01, 08.2014