Siemens SENTRON - Padlocking Mode

Operation
7.1 Operating modes of the transfer switching equipment
104 Manual, 08/2017, L1V30368969104A-02
7.1.3
Padlocking mode
The 3KC4 and 3KC8 transfer switching equipment can be secured in position O (OFF) using
a padlock. This can effectively prevent operation of the transfer switching equipment by
unauthorized persons.
Up to 3 padlocks with diameters between 4 and 8 mm can be attached on the motor operator
assembly.
Padlocking mode
● blocks remote control using inputs (312-317) as well as automatic mode of the electronic
module (3KC8 transfer switching equipment only),
● prevents attachment of the handle.
Note
The transfer switching equipment can only be locked under the following conditions:
• The transfer switching equipment is in "manual operation" mode
• The handle is removed.
Setting padlocking mode
1. Remove the handle if applicable
2. Turn the switch on the motor operator from the "Auto" position to the "Manual" position to
change from remote / automatic mode (3KC8 transfer switching equipment only) to
manual operation.
Figure 7-7 Setting padlocking mode
3. Pull the locking device out of the motor operator and secure it with a padlock.