11 Maintenance
Installation and Operation Manual for RPI M50A
100
5. Plug in the new SPD.
6. Put the fuse section cover tightly on the inverter
housing. Take care that the cover is correctly
positioned and seals the fuse section to ensure
protection degree IP65.
7. Fasten the six screws to the fuse section cover.
11.6 Replacing surge protection devices
(SPD) on the AC side
Use only the SPDs mentioned in the table
below for replacement.
Delta reserves the right to deny warranty if
another SPD type was used and this caused
trouble on the inverter or the installation.
Type
Manufacturer GEHE
Part number GPU1-C40/690
Voltage U
C
690 V
AC
Current I
n
15 kA (8/20)
Current I
max
30 kA (8/20)
Voltage U
P
≤ 2.5 kV
1. Loosen the six screws of the fuse section cover.
2. Remove the cover from fuse section.
3. Look for the SPDs that have tripped and need to
be replaced.
On a defective SPD (AC) the red pin has jumped
out.
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