18 UNIGEAR ZS2 INSTALLATION, OPERATION AND MAINTAINANCE INSTRUCTION MANUAL
4.3.4 Locking devices
• The main circuit's metallic shutters can be
padlocked independently when the
withdrawable circuit breaker has been
removed from switchgear. (Fig 25.4)
• Access to the circuit breaker racking slot can
be restricted with a pad lock.
• Access to the circuit breaker compartment
can be restricted with a padlock.
• Access to the operating-shaft of the earthing
switch can be restricted with a key lock.
(optional feature on request)
Note: For any padlock provision, padlock of
Ø6mm can be used.
—
Figure 25.5 - CB/Cable compartment door enabling device
Electromechanical door interlock for CB and cable
compartment
—
Figure 26 - Push button for mechanical ON/OFF breaker operation
with the door closed.
If the withdrawable part is in the service position, operation is carried
out using the knob which swings a push rod extension out.
26.1 Mechanical pushbutton
26.2 Turning knob
26.3 Handle
26.2
Turning knob
26.1
Mechanical
push
button
26.3
Handle
—
Figure 25.3
—
Figure 25.4
—
Figure - E&S Lock Arrangement
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