3 Engineering

LXM32

Multiple mains fuses Multiple mains fuses are required if the total input current of all drives connected via the common DC bus exceeds the maximum fuse rating shown in the table below.

Multiple mains fuses

 

Maximum fuse rating

LXM32∙∙∙∙M2

A

25

 

 

 

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∙∙∙∙M2

A

25

 

L1

 

 

 

 

N/L2

 

 

 

 

 

N/L2 L1

 

N/L2 L1

N/L2 L1

 

PC/- PA/+

PC/- PA/+ PC/- PA/+

DC+

 

 

 

 

DC -

 

 

 

 

Figure 3: Multiple mains fuses for single-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

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Common DC bus

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Image 26
Schneider Electric MNA01M001EN manual See .2 DC fuses for fuses for the DC bus

MNA01M001EN specifications

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