3 Engineering | LXM32 |
Multiple mains fuses Multiple mains fuses are required A single fuse is sufficient if the total input current of all drives connected via the common DC bus is less than the maximum fuse rating shown in the table below.
Multiple mains fuses |
| Maximum fuse rating |
LXM32∙U60N4, LXM32∙D12N4, | A | 32 |
LXM32∙D18N4, LXM32∙D30N4, |
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LXM32∙D72N4 |
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LXM32∙D85N4, LXM32∙C10N4 | A | 63 |
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If multiple mains fuses are required, additional DC bus fuses must be used upstream of each drive. The DC bus fuses must be suitable for 600 Vdc.
DC bus fuses |
| Maximum fuse rating |
LXM32∙U60N4, LXM32∙D12N4, | A | 32 |
LXM32∙D18N4, LXM32∙D30N4, |
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LXM32∙D72N4 |
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LXM32∙D85N4, LXM32∙C10N4 | A | 63 |
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L1 |
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L2 |
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L3 |
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L3 L2 L1 | L3 L2 L1 | L3 L2 L1 |
PC/- PA/+ PC/- PA/+ PC/- PA/+ | ||
DC+ |
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DC - |
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Figure 5: Multiple mains fuses for three-phase drives
See chapter "6.2 DC fuses" for fuses for the DC bus.
The use of mains reactors can reduce the input current. Due to the lower input current, it may be possible to operate the drives with just a single mains fuse.
MNA01M001EN, V1.01, 08.2014
28 | Common DC bus |