Operation On A Non-Grounded Line Supply (It System) - Siemens PM330 Hardware Installation Manual

4.3

Operation on a non-grounded line supply (IT system)

If the built-in unit is operated from a non-grounded supply (IT system), the connection to the
basic interference suppression module of the Power Module must be opened.
NOTICE
Damage to the device through not removing the connection clip with a non-grounded line
supply
Failure to open the connection to the basic interference suppression module on a non-
grounded line supply (IT system) can cause significant damage to the device.
• With a non-grounded line supply (IT system) open the connection to the basic
Figure 4-3
Power Module PM330
Hardware Installation Manual, 12/2018, A5E32844552B AF
interference suppression module.
Opening the left-hand housing flap
4.3 Operation on a non-grounded line supply (IT system)
Connecting up, switching on
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