Fuse Replacement - Siemens SIPLUS HCS Operating Instructions Manual

Service and maintenance

12.3 Fuse replacement

12.3 Fuse replacement
Safety guidelines
Voltage hazards
May cause death or serious injury
• The fuse board must only be disconnected and connected in the de-energized state.
• Before changing a fuse, you must isolate the load circuit from the supply and secure it
• Before working on the heating control system or the connected components, ensure the
NOTICE
Use only the prescribed fuse types (see section Ordering data (Page 144)). If you operate
the device with unapproved fuses, the device could be destroyed.
108
WARNING
against switching on again.
system is disconnected.
Operating Instructions, 11/2015, A5E35452705A/002
SIPLUS HCS4300