Replacing Cylindrical Fuses; Replacing The Lv Hrc Fuses - Siemens SINAMICS S120 Manual

7.5.8.4

Replacing cylindrical fuses

Preparatory steps
● Disconnect the cabinet from the power supply (do not forget the external power supplies).
Replacement steps
1. Open the cabinet.
2. Open the fuse holder (push the flap down/up).
3. Remove the defective fuse.
4. Insert the replacement fuse.
5. Close the fuse holder (push the flap up/down).
6. Close the cabinet.
7.5.8.5

Replacing the LV HRC fuses

Description
LV HRC fuses (low-voltage high-breaking-capacity fuses), also called knife fuses, are used,
for example, in the on/off switches of the power supplies.
Figure 7-19
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
LV HRC fuse
Maintenance and servicing
7.5 Replacing components
255