500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 103/121
Operation
19.7 Switching the three-position disconnector from EARTHED to OPEN position
Preconditions • Circuit-breaker in OPEN position
• Three-position disconnector in EARTHED
position
➭ Check service readiness (see page 85,
"Ready-for-service indicator").
➭ Remove the padlock (optional) from the
locking device of the three-position
disconnector.
Releasing the actuating
opening
➭ Push the control gate of the three-position
disconnector downwards, and hold it.
✔ The actuating opening of the earthing
switch is open.
Switching to OPEN
position
➭ Insert the operating lever and turn counter-
clockwise as far as it will go.
✔ The position indicator of the earthing switch
shows the OPEN position.
Final activities ➭ Remove the operating lever.
✔ The control gate returns to its initial
position.
➭ Fit the padlock (optional) on the locking
device in the desired position (see page 87,
"Mechanical interlocking with padlock").
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