ABB ZX0 User Manual

Manual ZX0 HB 600 en - Revision 05 | 55
Operation of the switch-disconnector
Closing and opening are performed by pressing the optional ON
and OFF buttons in the low voltage compartment door, or manu-
ally.
Fig. 4.3.2.1: Operation of the three position switch-disconnector (in this
case earthing switch operation
(see fig. 4.3.2.1)
Operation of the earthing switch
The earthing switch is always operated manually.
− Pull the selector slide (1) outwards, press it down towards
the earthing switch symbol and hold it fast.
− Plug the operating lever onto the hexagon through the
released opening (5) in the door.
Earthing switch OFF ð ON
− Turn the operating lever approx. 90° clockwise.
− Withdraw the operating lever.
Earthing switch ON ð OFF
− Turn the operating lever approx. 90° counter-clockwise.
− Withdraw the operating lever.
Operation of the disconnector
− Pull the selector slide (1) outwards, press it up towards the
switch-disconnector symbol and hold it fast.
− Plug the operating lever onto the hexagon through the
released opening (4) in the door.
Switch-disconnector OFF ð ON
− Turn the operating lever approx. 90° clockwise.
− Withdraw the operating lever.
Switch-disconnector ON ð OFF
− Turn the operating lever approx. 90° counter-clockwise.
− Withdraw the operating lever.
On failure of the supply voltage or on failure of the mechanism
motor, the motor operated mechanism without blocking magnets
can be operated in the same way as a manual mechanism (see
section 4.3.2).
Switch the mcb
1)
for the mechanism motor off
before performing emergency manual operation.
Three position switch-disconnector mechanism fitted with
optional blocking magnets -RLE3 and –RLE4
The blocking magnets -RLE3 and -RLE4 prevent movement of
the selector slide in certain situations. This interlock is active on
failure of the supply voltage. Deblocking of the blocking magnets
requires work inside the three position switch-disconnector oper-
ating mechanism, and may only be performed by qualified person-
nel. Contact the ABB Service Department if necessary.
4.3.2 Manual mechanism
4.3.3 Motor operated mechanism
4.3.4 Emergency manual operation of
the motor operated mechanism
1)
mcb: miniature circuit-breaker

ABB ZX0 Specifications

General

Brand	ABB
Model	ZX0
Category	Switch
Language	English