ABB PrimeGear ZX0 Product Manual page 51

O P E R A T I O N
4.1.2 Operation of the circuit breaker
Depending on the version of the switchgear
system, the circuit breaker can be operated
remotely (from the control room) or locally. At the
panel, the circuit breaker operating mechanism can
be operated manually, or electrically if electrical
controls (e.g. the human-machine interface of a
control device) are fitted.
—
Fig. 4.1.2.1 "Securing
to prevent
cancellation of
earthing" interlock in
the deblocked
condition
Turning lever
—
Fig. 4.1.2.1
Note on "securing to prevent cancellation of
earthing" interlock
The interlock has two different bores for
U-locks. Use only U-locks with a shackle
diameter of 10 mm for bores "A" in
Fig.4.1.2.1, and only U-locks with a
shackle diameter of 5 mm for bores "B".
51
OFF button for
circuit breaker
Bore "A"
Bore "B"
ON button for
circuit breaker