Switching Off - Eaton Magnefix MD4 User Manual

4.2.2

Switching off

Switching off the cable panel and branch-circuit
panel
W
ARNING
Refer to the safety instructions in paragraph 4.1.2.
Procedure for switch caps
1. Place the springing handle on the switch cap.
2. Pull the handle firmly.
 The switch cap disengages from the fixed part.
Place a clean, dry cover on the open cast resin
3.
insulated member of the switch.
4 If (maintenance) work is scheduled to be performed,
the installation must have protective earthing.
Switching off a protected panel
Procedure for protected panel
1 If the relay has switched off the protected panel:
 the electronic trip indicator (9) will show a red field;
 the mechanical position indicator (5) will show a
white field.
Verify this.
2 If the position indicator (5) shows a black field, press
the button (6) The vacuum circuit-breaker will then
switch off.
3 Remove the corresponding switch caps (12) one by
one in line with the above procedure.
4 If (maintenance) work is scheduled to be performed,
the installation must have protective earthing.
5 If you are about to carry out measurements, switch on
the vacuum circuit-breaker in line with the above
procedure "Switching on for maintenance work" and
then lock it to prevent switching off, using the relevant
key-operated earthing interlock locking knob.
1, 2
3 Cover for cast resin insulated member of switch
Magnefix MD4
991.184 G01 03 79