Siemens SINAMICS G150 Operating Instructions Manual page 637

Note
If required, the LV HRC fuse grip can be ordered from Siemens using article number 3NX1.
Removal steps
The NH fuse is removed in the following steps:
1. Open the main switch.
2. Remove the front shock hazard protection cover of the cabinet in front of the fuses.
3. Locate the LV HRC fuse puller with forearm protection for LV HRC fuse-links over the
fuse.
4. Withdraw the defective fuse.
NOTICE
Device failure after a LV HRC fuse trips
The neighboring LV HRC fuses may also become damaged if a LV HRC fuse ruptures.
Failure to replace all fuses at the same time can cause the device to fail.
• After a LV HRC fuse ruptures, always replace all LV HRC fuses at the same time.
Installation steps
The NH fuse is installed in the following steps:
1. Insert the new fuse into the LV HRC fuse puller.
2. Insert the fuse into the fuse holder.
3. Press the release button on the LV HRC fuse puller to release the grip from the new fuse.
4. Attach the front shock hazard protection cover.
The power switch can then be closed.
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
WARNING
Danger to life through electric shock due to removed cover above the power
connections
When the lower cover (over the line connections) is removed, line voltage is present
even when the main switch is switched off. Contact with the connections can result in
death or serious injury.
• Do not remove the cover (shock protection) over the line connections.
Always use fuses of the same type.
Maintenance and servicing
11.4 Replacing components
637